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KEK-PH Lectures and Workshops 2020

Asia/Tokyo
Meeting is based on-line.
Description

"KEK-PH lectures and workshops" is a form of KEK-PH workshop series at the time of Covid-19.

The annual KEK Theory Meeting on Particle Physics Phenomenology (KEK-PH) covers many topics in Particle Physics and Cosmology, from the Standard Model and models beyond it to particle cosmology and astrophysics. At the time of Covid-19, the KEK theory center is organizing an on-line lecture and workshop series, "KEK-PH lectures and workshops 2020."

 


1st KEK-PH Lectures on "Renormalon and Resurgence"

Program

https://conference-indico.kek.jp/event/117/timetable/#day-2020-07-01

Lectures

Jul. 1, 7: Dr. Hiromasa Takaura (KEK), "Renormalon problem in QCD and a direction to go beyond perturbation theory"

Jul. 8, 15: Prof. Masazumi Honda (YITP), "Resummation of perturbative series and Resurgence in quantum field theory"


2nd KEK-PH Lectures and Workshop on "Collider"

Program

https://conference-indico.kek.jp/event/117/timetable/#day-2020-08-04

Lectures

Aug. 4:  Prof. Micheal Peskin (SLAC), "Physics at e+e-collider"

Aug. 5:  Dr. Zhen Liu (Maryland), "Hadron collider Physics"

Workshop

Aug. 4.
 
Ryo Yonamine (ILC, Tohoku) 
Shigeki Matsumoto  (Kavli IPMU, Tokyo)
Tomohiro Abe (KMI, Nagoya) 
Norimi Yokozaki (KEK)  
So Chigusa (KEK)
Shinya Kanemura (Osaka)
Michihisa Takeuchi (KMI, Nagoya)

Aug. 5.

Cheng-Wei Chiang (NTU) 
Sung Hak Lim (KEK)  
Tao Liu (HKUST)  
Lingfeng Li (HKUST)
Soji Tsuno (ATLAS, KEK)  
Satoshi Shirai (Kavli IPMU, Tokyo) 
Zeren Simon Wang (APCTP)
Yasuhito Sakaki  (KEK)
 
 

3rd KEK-PH + KEK-Cosmo Joint Lectures and Workshop on "Dark Matter"

Program

https://conference-indico.kek.jp/event/117/timetable/#day-2020-10-13

Lectures

Oct. 13, 10:00-12:00: Prof. Kentaro Miuchi (Kobe University), "Direct search of dark matter"

Oct. 21, 16:00-18:00: Prof. Georg Raffelt (Munich, Max Planck Inst.), "Particle-physics constraints from stars"

Workshop

Oct. 13, 13:00-17:40

Jongkuk Kim
Kohei Matsushita
Yoshihiko Abe
Masaki Yamada

Kento Asai
Nagisa Hiroshima
Kohei Hayashi
Kazunori Kohri

Yevgeny Stadnik
Emi Masaki
Natsumi Nagata


4th KEK-PH + KEK-Cosmo Joint Lectures and Workshop on "Gravitational Wave"

Program

https://conference-indico.kek.jp/event/117/timetable/#day-2020-11-04

Lectures

Nov. 4, 16:00-18:00

16:00-17:00: Prof. Mark Hindmarsh (Sussex), "Gravitational waves from phase transitions at the electroweak scale"

17:00-18:00: Dr. Ryusuke Jinno (DESY), "Gravitational waves from first-order phase transitions: Towards a better prediction"

Short Talks

Nov. 4, 13:00-15:30

Takahiro Terada (IBS), "NANOGrav and primordial black holes"
Sunao Sugiyama (Kavli IPMU, Tokyo), "Testing stochastic gravitational wave signals by PBH microlensing"
Masaki Yamada (Tohoku), "NANOGrav and first-order phase transition in the early Universe"
Keitaro Takahashi (Kumamoto), "Future measurements of stochastic gravitational wave background through pulsar timing by SKA"


5th KEK-PH Lectures on "Amplitude"

Program

https://conference-indico.kek.jp/event/117/timetable/#day-2020-12-01

Lectures

Dec. 1, 10:00-12:00: Prof. Yu-Tin Huang (NTU), "An on-shell view of four-dimensional blackholes"

Dec. 2, 10:00-12:00: Dr. Ryota Kojima (NTU), "Introduction to the amplituhedron"


6th KEK-PH Lectures on "Long-lived particles"

Program

https://conference-indico.kek.jp/event/117/timetable/#day-2021-02-04

Lectures

Feb. 4, 17:00-18:30 : ProfMikhail Shaposhnikov (EPFL), "BSM Physics with Light Particles"

Feb. 10, 10:00-12:00: Dr. Yasuhito Sakaki (KEK), "Fixed target experiments using electron and positron beams"


7th KEK-PH Lectures and Workshop on "Flavor"

Program

https://conference-indico.kek.jp/event/117/timetable/#day-2021-03-24

Lectures

Mar. 24, 16:30-18:00 : ProfShoji Hashimoto (KEK), "Filling the gap between inclusive and exclusive processes"

Mar. 30, 17:00-18:30: Dr. Danny van Dyk (TUM), "Exclusive b -> s mu mu Processes as Precision Probes of the Standard Model"

Workshop

Mar. 24, 13:00-15:50

Kohsaku Tobioka (Florida State University)
Daiki Ueda (University of Tokyo)
Keisho Hidaka (Tokyo Gakugei University)
Takashi Shimomura (Miyazaki University)
Masato Yamanaka (Osaka City University)
Takuya Morozumi (Hiroshima University)
Hiroyuki Umeeda (Academia Sinica)


Organizers: So Chigusa, Sung Hak Lim, Motoi Endo, Toru Goto, Daisuke Harada, Hiroyuki Ishida, Ryuichiro Kitano, Kazunori Kohri, Ryutaro Matsudo, Hiroki Matsui, Satoshi Mishima, Mihoko M. Nojiri, Hajime Otsuka, Yutaka Sakamura, Toyokazu Sekiguchi, Hiromasa Takaura, Ryo Yokokura, Norimi Yokozaki 


Participants
  • Akiko Kawachi
  • Akio Tomiya
  • Akira Watanabe
  • Amit Chakraborty
  • Amit Chakraborty
  • Amon Furuichi
  • Anna Antonova
  • Apriadi Salim Adam
  • Atsushi Hinata
  • Atsushi Hinata
  • Atsushi J. Nishizawa
  • Atsushi Nakamura
  • Atsushi Nakamura
  • Atsushi Tokiyasu
  • Atsuya Niki
  • Atsuya Niki
  • Atsuya Niki
  • Atsuya Niki
  • Atsuyuki Yamada
  • Azumi Sakai
  • BASABENDUN BARMAN
  • Cai-Dian Lu
  • Chao Chen
  • Cheng-Wei Chiang
  • Cheng-Wei Chiang
  • Chikako Idegawa
  • Chikako Idegawa
  • Chiori Fujisawa
  • Christiane Schmickler
  • Christoph Schwanda
  • Chulmoon Yoo
  • Dai-suke TAKAHASHI
  • Daiki Ueda
  • Daiki Ueda
  • Daisuke Harada
  • Daisuke Yamauchi
  • Di-Lun Yang
  • Dimitrios Giataganas
  • Donghun Lee
  • Eigo Shintani
  • Eigo Shintani
  • Emi Masaki
  • Eung Jin Chun
  • Fagner Correia
  • Fei Huang
  • Fei Huang
  • Fumihiko Takasaki
  • Fuminobu Takahashi
  • Fuminobu Takahashi
  • Genki Fujisawa
  • Gi-Chol Cho
  • Gi-Chol Cho
  • Hajime Otsuka
  • Hajime Otsuka
  • Haruhiko Miyake
  • He Wang
  • Heejoo Kim
  • Hideki Asada
  • Hidenori Fukaya
  • HIDEYUKI NAKAZAWA
  • Hikaru Tanigawa
  • Hikaru Uchida
  • Hiroaki Sugiyama
  • Hiroaki Sugiyama
  • Hiroaki Sugiyama
  • Hirokazu Sasaki
  • Hiroki Kawai
  • Hiromasa Takaura
  • Hiromasa Takaura
  • Hiromasa Takaura
  • Hiromasa TAKAURA
  • Hiromasa TAKAURA
  • Hiromasa Takaura
  • Hiroshi Isono
  • Hiroto Shibuya
  • Hiroto Shibuya
  • Hiroyuki Ishida
  • Hiroyuki Ishida
  • Hiroyuki Ishida
  • Hiroyuki Ishida
  • Hiroyuki Ishida
  • Hiroyuki Kawamura
  • Hiroyuki Kawamura
  • Hiroyuki Umeeda
  • Hisakazu Minakata
  • Hisaki Hayashii
  • Hisashi Okui
  • Hisashi Okui
  • Hisashi Okui
  • Hisashi Okui
  • Hisataka YOSHIDA
  • Hoiki Liu
  • Hoiki Liu
  • Hsiang-nan Li
  • Huong Do
  • Hyeonseok Seong
  • Hyeonseok Seong
  • Ikumi Ueda
  • Ipsita Saha
  • Jason Kristiano
  • Jinbo Yang
  • Jinmian Li
  • Jiro Arafune
  • Jiro Arafune
  • Joe Sato
  • Jongkuk Kim
  • Ju Zhu
  • Jumpei Takata
  • Junghyeon Park
  • Junichi Tanaka
  • junji Hisano
  • Junji Hisano
  • Junko Kushida
  • Junpei Fujimoto
  • Junpei Ikemoto
  • Juntato Wada
  • Jurina Nakajima
  • Jyotirmoi Borah
  • Kai Murai
  • Kai Murai
  • Kai Oishi
  • Kaigo Hirao
  • Kaiki Shibata
  • Kana Hayami
  • Kanae Asai
  • KATSUHIKO SATO
  • Katsuki Aoki
  • Katsuro Nakamura
  • Katsuta Sakai
  • Katsuya Hashino
  • Kayoung Ban
  • Kayoung Ban
  • Kayoung Ban
  • Kaz Kohri
  • Kaz Kohri
  • Kaz Kohri
  • Kazuhiro Tanaka
  • Kazuhiro Tanaka
  • Kazuhiro Tobe
  • Kazuhito Suzuki
  • Kazuki TANAKA
  • Kazuki Tanaka
  • Kazumasa Ohkuma
  • Kazumasa Okabayashi
  • Kazumasa Sugita
  • Kazunori Kohri
  • Kazunori Nakayama
  • Kazuyuki Akitsu
  • Ke-Pan Xie
  • Kei Yamamoto
  • Kei Yamamoto
  • Kei Yamamoto
  • Kei Yamamoto
  • Kei-Ichi Kondo
  • Kei-Ichi Kondo
  • Keiichi Watanabe
  • Keiichi Watanabe
  • Keiko Nagao
  • Keiko Nagao
  • Keisho Hidaka
  • Keisho Hidaka
  • Keisho Hidaka
  • Keisho Hidaka
  • Keisho Hidaka
  • Keisuke Fujii
  • Keisuke Nagano
  • Keita Takizawa
  • Keita Yumino
  • Keiya Ishiguro
  • Ken Ichi AOKI
  • Ken-ichi Okumura
  • Kenichi Saikawa
  • Kenichi Saikawa
  • kenji kadota
  • kenji kadota
  • kenji kadota
  • kenji kadota
  • Kentaro Miuchi
  • Kentaroh Yoshida
  • Kentarou Mawatari
  • Kentarou Mawatari
  • Kentarou Mawatari
  • Kentarou Mawatari
  • Kentarou Mawatari
  • Kento Asai
  • Kento Asai
  • Kento Asai
  • Kento Asai
  • Kento Asai
  • Kento Asai
  • Kimiko Yamashita
  • Kimiko Yamashita
  • Kimiko Yamashita
  • Kingman Cheung
  • Kiyoharu Kawana
  • Kiyoharu Kawana
  • Kiyoshi Kato
  • Kohei Hayashi
  • Kohei Kamada
  • Kohei Kamada
  • Kohei Matsushita
  • Kohei Matsushita
  • Kohei Motegi
  • Kohsaku Tobioka
  • Kohsaku Tobioka
  • Koichi Hamaguchi
  • Koichi Hamaguchi
  • Koichi Hirano
  • Koichi Hirano
  • Koichi Hirano
  • Koichi Hirano
  • Koji Hara
  • Koji Ishiwata
  • Koji Ishiwata
  • Koji Ishiwata
  • Koji Terashi
  • Koji Tsumura
  • Koji Tsumura
  • Koki Tokeshi
  • Koutarou Kyutoku
  • Kunihiro Nagano
  • Kuwahara Naoto
  • Ligong Bian
  • Lingfeng Li
  • Linghui Hou
  • Makoto Takizawa
  • Mariko Kubo
  • Martin Spinrath
  • María Luisa López Ibáñez
  • Masaharu Tanabashi
  • Masaharu Tanabashi
  • Masaharu Tanabashi
  • Masahiro Kuze
  • Masahiro Takada
  • Masahito Yamazaki
  • Masahito Yamazaki
  • Masahito Yamazaki
  • masahito yamazaki
  • Masaki Yamada
  • Masaki Yamada
  • Masakiyo Kitazawa
  • Masamichi Sato
  • Masamichi Sato
  • Masashi Aiko
  • Masashi Hamanaka
  • Masashi Mizutani
  • Masashi Tanaka
  • Masato Aoki
  • Masato Yamanaka
  • Masato Yamanaka
  • Masato Yamanaka
  • MASAYA ISHINO
  • MASAYA ISHINO
  • Masayoshi KIGUCHI
  • Masayoshi Kozai
  • Masayuki Matsuzaki
  • Mayumi Aoki
  • Mayumi Aoki
  • Mayumi Aoki
  • Mei-Ting Lin
  • Metin Ata
  • Michihisa Takeuchi
  • Michio Hashimoto
  • Michiyasu Nagasawa
  • Michiyasu Nagasawa
  • Miho Ishigaki
  • Mihoko NOJIRI
  • Mihoko Nojiri
  • Mihoko Nojiri
  • Minho Kim
  • Minori Fujimoto
  • Minoru Tanaka
  • Minxi He
  • Misao Sasaki
  • Mitsuaki Hirasawa
  • Mitsuru Kakizaki
  • Mitsuru Kakizaki
  • Mitsuru Kakizaki
  • Mohammad Sadegh Talezadehlari
  • Morimitsu Tanimoto
  • Morimitsu Tanimoto
  • Motoi Endo
  • Motoi Endo
  • Motoi Endo
  • Motoi ENDO
  • Motoi ENDO
  • Motoi Endo
  • Motoko Fujiwara
  • Motoko Fujiwara
  • Munetaka UENO
  • Muraoka Yoshiki
  • N Rajeev
  • nagao keigo
  • Nagisa Hiroshima
  • Nagisa Hiroshima
  • Naoki Yamamoto
  • Naoki Yamatsu
  • Naoto Kan
  • Naoto Nishimura
  • Naoya Kitajima
  • Natsumi Nagata
  • Natsumi Nagata
  • Natsumi Nagata
  • Neil Barrie
  • Nhi Quach
  • Nicholas Benoit
  • Nicholas J. Benoit
  • Nobuchika Okada
  • Nobuhiro Maekawa
  • Nobuhito Maru
  • Nobuhito Maru
  • Noriaki Kitazawa
  • Norimi Yokozaki
  • Norisuke Sakai
  • Norisuke Sakai
  • Osamu Seto
  • Osamu Seto
  • Osamu Seto
  • Peiwen Wu
  • Percy Cáceres
  • Pyungwon Ko
  • Pyungwon Ko
  • Pyungwon Ko
  • Qu Cao
  • Rashmi Dhamija
  • Rinto Kuramochi
  • Ryo Nagai
  • Ryo Nagai
  • Ryo Namba
  • Ryo Suzuki
  • Ryo Yonamine
  • Ryoichi Seki
  • Ryota Kojima
  • Ryota Kojima
  • Ryotaro Ishikawa
  • Ryu Sawada
  • Ryuichiro Kitano
  • Ryusuke Jinno
  • s ohkubo
  • Sachio Komamiya
  • Sang Hui Im
  • Satoshi ISHIHARA
  • Satoshi Ishihara
  • Satoshi Mihara
  • Satoshi Mishima
  • Satoshi Mishima
  • Satoshi Mishima
  • Satoshi Mishima
  • Satoshi Mishima
  • Satoshi Mishima
  • Satoshi Nakamura
  • Satoshi Shirai
  • Satoshi Yamaguchi
  • Seong Chan Park
  • Seong Chan Park
  • Seong Chan Park
  • Shi Pi
  • Shigeki Matsumoto
  • shigeo ohkubo
  • Shih-Yen Tseng
  • Shih-Yen Tseng
  • Shihwen Hor
  • Shihwen Hor
  • Shimizu Yasuhiro
  • Shin Fujimoto
  • Shin Suzuki
  • Shingo Takeuchi
  • Shinsuke Kawai
  • Shinta Kasuya
  • Shinta Kasuya
  • Shintaro Eijima
  • Shintaro Eijima
  • Shintaro Eijima
  • shinya ishii
  • Shohei NISHIDA
  • Shohei Okawa
  • Shohei Okawa
  • Shoichi Ichinose
  • Shoichi Kawamoto
  • Shoji Hashimoto
  • Shota Kisaka
  • Shota Nakagawa
  • Shota Nakagawa
  • Shota Nakagawa
  • Shota Nakagawa
  • Shubhangi Krishan Maurya
  • Shuichiro Funatsu
  • Shuichiro Yokoyama
  • Shuichiro Yokoyama
  • Shun-ichiro Koh
  • Shunichi Horigome
  • Shunzo Kumano
  • Siyi Zhou
  • So Chigusa
  • So Chigusa
  • So Chigusa
  • So Chigusa
  • So Chigusa
  • Soshi Tsuno
  • Sotaro Sugishita
  • SuBin Han
  • Sujay Shil
  • Sung Hak Lim
  • Sunghoon Jung
  • Syuehi Iguro
  • Syuhei Iguro
  • Tadashi ISHIKAWA
  • TaeHun Kim
  • Taisuke Katayose
  • Takahiko Matsubara
  • Takahiro Kubota
  • Takahiro Kubota
  • Takahiro Mizuno
  • Takahiro Terada
  • Takahiro Ueda
  • Takahiro Yoshida
  • Takahiro Yoshida
  • Takahiro Yoshida
  • Takashi Hiramatsu
  • Takashi Kaneko
  • Takashi Koide
  • Takashi Koide
  • Takashi Shimomura
  • Takashi Shimomura
  • Takashi Toma
  • Takashi Toma
  • Takashi Toma
  • Takato Mori
  • Takehiko Asaka
  • Takehiko Asaka
  • Takeshi Chikamatsu
  • Takeshi Chikamatsu
  • Takeshi Chikamatsu
  • takeshi fukuyama
  • Takeshi Kobayashi
  • Takeshi Kobayashi
  • Takeshi Kobayashi
  • Takeshi Morita
  • Taku Yamanaka
  • Takumi Kuwahara
  • Takumi Kuwahara
  • Takumi Oikawa
  • Takuya Morozumi
  • Takuya Morozumi
  • Takuya Shimazaki
  • Takuya Shimazaki
  • Tamiaki Yoneya
  • Tao Liu
  • Taohan Li
  • Tatsuya Masubuchi
  • Teppei Kitahara
  • Teppei Kitahara
  • Teppei Kitahara
  • Teppei Kitahara
  • Teppei Kitahara
  • Teppei Kitahara
  • Teruyuki Kitabayashi
  • Tetsuo Shindou
  • Tetsutaro Higaki
  • Tetsutaro Higaki
  • Tetsutaro Higaki
  • Tetsutaro Higaki
  • Tokiro Numasawa
  • Tomohiro Abe
  • Tomohiro Abe
  • Tomohiro Abe
  • Tomohiro Fujita
  • Tomohiro Fujita
  • Tomohiro Matsuda
  • Tomohisa Ogawa
  • Tomoya Nagai
  • Tomoya Nagai
  • Tomoya Nagai
  • Tomoya Tachinami
  • Toru Goto
  • Toru Sato
  • Toru Sato
  • Toshifumi Yamashita
  • Toshiki Kurita
  • Toshinori Mori
  • Toshiyuki Iwamoto
  • Toshiyuki Iwamoto
  • Toshiyuki Morii
  • Toshiyuki Morii
  • Toshiyuki Morii
  • Toyokazu Sekiguchi
  • Truyen Le Duc
  • Tsuneharu Omija
  • Tsutomu Ishikawa
  • Tsutomu Yanagida
  • Tsuyoshi Hashimoto
  • Tsuyoshi Hashimoto
  • Tsuyoshi Suwada
  • Ui Min
  • We-Fu Chang
  • Weiguang Cao
  • Wen Yin
  • William Coulton
  • xuan ye
  • Xuxiang Li
  • Yakefu Reyimuaji
  • Yamazaki Takeshi
  • Yang An
  • Yang An
  • Yasuhiro Shimizu
  • Yasuhito Sakaki
  • Yasuhito Sakaki
  • Yasumichi Aoki
  • Yasuyuki Hatsuda
  • Yevgeny Stadnik
  • Yevgeny Stadnik
  • Yifan Chen
  • Yiming Liu
  • Yongsoo Jho
  • Yoshiaki Sofue
  • Yoshifumi Hyakutake
  • Yoshihiko Abe
  • Yoshihiko Abe
  • Yoshihiko Abe
  • Yoshihiko Abe
  • Yoshihiro Gunji
  • Yoshihiro Gunji
  • Yoshihiro SHIGEKAMI
  • Yoshihiro SHIGEKAMI
  • Yoshihiro TANABE
  • Yoshiki Sato
  • Yoshiki Uchida
  • Yoshiki Uchida
  • Yoshiki Uchida
  • Yoshiki Uchida
  • Yoshiki Uchida
  • yoshitaka ametani
  • Yu Hamada
  • Yu Hamada
  • Yu Hamada
  • Yudong LUO
  • Yuichiro Kiyo
  • Yuichiro Kiyo
  • Yuichiro Tada
  • Yuki Sakakihara
  • Yuki Watanabe
  • Yuma Uematsu
  • Yumi Aoki
  • Yunlong Zheng
  • Yurika Higashino
  • Yusuke Saito
  • Yuta Hamada
  • Yuta Kawamura
  • Yutaro Shoji
  • Yuuki Hayashi
  • Yu−mei Wu
  • Zeren Simon Wang
  • Zhen-Yuan Wu
  • Zhuoran Huang
  • Ziyong Zhang
  • Zu-Cheng Chen
    • 11:00 AM 12:00 PM
      Renormalon problem in QCD and a direction to go beyond perturbation theory I 1h

      In QCD, perturbation theory is an indispensable tool but is not an ultimate method in the sense that accuracies of perturbative predictions are limited. In particular, the so-called renormalon problem is known that perturbative expansions of observables give divergent series and cause inevitable uncertainties. This problem is becoming more serious from phenomenological aspects in recent years. I first give a review of the renormalon problem. The contents include causes of the divergence of perturbative series and its implications to nonperturbative physics. Subsequently, I discuss a possible direction to overcome the renormalon problem. For this purpose, one has to calculate perturbative contributions compatibly with the operator product expansion so that nonperturbative effects can eventually be included.

      Speaker: Dr Hiromasa Takaura (KEK)
    • 11:00 AM 12:00 PM
      Renormalon problem in QCD and a direction to go beyond perturbation theory II 1h

      In QCD, perturbation theory is an indispensable tool but is not an ultimate method in the sense that accuracies of perturbative predictions are limited. In particular, the so-called renormalon problem is known that perturbative expansions of observables give divergent series and cause inevitable uncertainties. This problem is becoming more serious from phenomenological aspects in recent years. I first give a review of the renormalon problem. The contents include causes of the divergence of perturbative series and its implications to nonperturbative physics. Subsequently, I discuss a possible direction to overcome the renormalon problem. For this purpose, one has to calculate perturbative contributions compatibly with the operator product expansion so that nonperturbative effects can eventually be included.

      Speaker: Dr Hiromasa Takaura (KEK)
    • 11:00 AM 12:00 PM
      Resummation of perturbative series and Resurgence in quantum field theory I 1h

      Perturbative series in Quantum Field Theory (QFT) is typically divergent. While there is a standard way to resum divergent series called Borel resummation, it is expected that naive Borel resummation does not work in many QFTs including QCD. Resurgence is often used to cure this kind of situation both in physics and mathematics. In my lecture, I will begin with general expectation on perturbative series in QFT and introduce resurgence with some simple examples. Then I will explain recent attempts to apply resurgence to QFT. Although it is natural to ask whether one can apply resurgence to some realistic theories such as QCD, I do not have a clear answer to the question at this moment because we do not have sufficient data yet. Instead I will discuss what should be done or known to answer the question.

      Speaker: Prof. Masazumi Honda (YITP)
    • 11:00 AM 12:00 PM
      Resummation of perturbative series and Resurgence in quantum field theory II 1h

      Perturbative series in Quantum Field Theory (QFT) is typically divergent. While there is a standard way to resum divergent series called Borel resummation, it is expected that naive Borel resummation does not work in many QFTs including QCD. Resurgence is often used to cure this kind of situation both in physics and mathematics. In my lecture, I will begin with general expectation on perturbative series in QFT and introduce resurgence with some simple examples. Then I will explain recent attempts to apply resurgence to QFT. Although it is natural to ask whether one can apply resurgence to some realistic theories such as QCD, I do not have a clear answer to the question at this moment because we do not have sufficient data yet. Instead I will discuss what should be done or known to answer the question.

      Speaker: Prof. Masazumi Honda (YITP)
    • 10:00 AM 12:30 PM
      KEK-PH collider: Lecture:Physics at e+e-collider(Prof. Michael Peskin)
      Convener: Mihoko NOJIRI (Professor)
      • 10:00 AM
        Physics at e+e-collider 1h

        Part 1
        General introduction: Why do we need new physics beyond the SM?
        General introduction: processes in e+e- as a function of energy; run plan of the ILC
        Higgs boson: SM predictions for the decay rates and properties -- and, brief review of LHC measurements
        Higgs boson: BSM effects on the Higgs couplings
        Higgs boson: aspects of the experimental study in e+e-
        Higgs boson: global fit of e+e- data in the context of SMEFT

        Speaker: Prof. Michael Peskin (SLAC)
        • Part 1 1h

          General introduction: Why do we need new physics beyond the SM?

          General introduction: processes in e+e- as a function of energy; run plan of the ILC

          Higgs boson: SM predictions for the decay rates and properties -- and, brief review of LHC measurements

          Higgs boson: BSM effects on the Higgs couplings

          Higgs boson: aspects of the experimental study in e+e-

          Higgs boson: global fit of e+e- data in the context of SMEFT

      • 11:30 AM
        Physics at e+e-colliders 1h

        Part 2.
        e+e- -> 2 fermion reactions at e+e- colliders, s-channel resonance and compositeness searches
        top quark: general theoretical orientation
        top quark: threshold region
        top quark: continuum region
        top quark: possible BSM effects and tests of these
        e+e- at high energy: e+e- -> t tbar h
        e+e- at high energy e+e- -> hh + X
        the long future of the ILC laboratory

        Speaker: Prof. Michael Peskin
    • 1:30 PM 4:50 PM
      KEK-PH collider: (workshop)
      Convener: Mihoko NOJIRI (Professor)
      • 1:30 PM
        Heavy quark pair productions at ILC 30m

        We expect the ILC with polarized beams will shed light on the chiral structures of the electroweak couplings to all fermions. In the experimental viewpoint, the key of such measurements is to discriminate between fermion and anti-fermion in pair production events. In this talk, I will report recent developments and what we have achieved so far based on the studies within the ILD collaboration, especially for t-, b-, and c-quark pair productions.

        Speaker: Dr Ryo Yonamine (Tohoku)
      • 2:00 PM
        Dark matter detection at future lepton colliders 20m

        Future lepton colliders are now intensively discussed around the world, and we have so far four proposals of the colliders; one from Asia (ILC and CEPC) and the other from Europe (FCC-ee and CLIC). The main goal of the colliders at the first stage (s1/2 = 240-250 GeV) is to precisely measure known Higgs couplings to tackle the problem of the electroweak symmetry breaking. On the other hand, it is also interesting to discuss whether other new physics signals, in particular dark matter’s, can be detected or not. In this talk, I would like to talk about how important roles future lepton colliders can play to detect dark matter.

        Speaker: Prof. Shigeki Matsumoto (Kavli IPMU)
      • 2:20 PM
        Early kinetic decoupling of dark matter and the Higgs invisible decay in collider experiments 20m

        We revisit the Higgs-to-invisible decay ratio in Higgs-portal dark matter models. The Higgs-to-invisible decay searches are powerful probes of the models with increasing sensitivity in upcoming colliders. Close to the mass threshold of a Higgs decay into a pair of DM particles, the coupling value is expected to be very small in order to be compatible with the observed value of the thermal relic abundance. This small coupling perfectly fits with the current status of Higgs-to-invisible constraints and direct detection experiments, such as the XENON1T experiment. At the same time, the small coupling implies a lower DM scattering rate with particles in the early Universe plasma. The suppression of the scattering rate makes the kinetic decoupling happens earlier. Thus, the standard assumption in many relic abundance computations, namely the local thermal equilibrium, is not justified during the freeze-out process. We reanalyze Higgs-portal DM models, such as the Scalar-Singlet and a fermion DM model, taking the new effect of early kinetic decoupling in the relic abundance computation into account. Our results show that a larger value of the DM coupling to the Higgs is allowed. Therefore, current and future Higgs-to-invisible decay searches can generically probe more of the parameter space than previously expected.

        Speaker: Dr Tomohiro Abe (KMI, Nagoya)
      • 2:40 PM
        SUSY models for the muon g-2 anomaly, and their implications 20m

        The muon g-2 anomaly is an important guide towards new physics beyond the Standard Model as it indicates new particles lighter than O(100) GeV. Supersymmetric standard model is an attractive candidate explaining the anomaly since it also solves other important puzzles: the hierarchy problem, charge quantization and dark matter nature. In this talk, I would like to show that, by considering existent constraints, the viable scenario is almost fixed, which can be tested at the high luminosity LHC.

        Speaker: Dr Norimi Yokozaki (KEK)
      • 3:20 PM
        Anomaly Mediation at Future Hadron Colliders 20m

        We discuss prospects of studying models with anomaly mediated
        supersymmetry breaking at future hadron colliders with centre-of-mass
        energy of 100 TeV. In such a class of models, charged Wino becomes
        long-lived with its decay length of ∼ 6 cm, and the charged Wino
        tracks may be identified in particular by the inner pixel detector;
        the charged Wino tracks can be used not only for the discrimination of
        standard model backgrounds but also for the event reconstructions. We
        show that precise determinations of the Bino, Wino, and gluino masses
        are possible at the FCC. For such measurements, information about the charged Wino tracks, including the one about the velocity of the charged Wino using the time of the hit at the pixel detector, is crucial. With the measurements of the gaugino masses in the pure gravity mediation model, we have an access to more fundamental parameters like the gravitino mass. We also show that the lifetime of charged Wino may be measured by using the information about the distribution of the flight lengths of charged Winos. We propose a procedure for the lifetime determination and show how the accuracy
        changes as we vary the mass spectrum of superparticle. We also discuss the effects of the detector layouts on the lifetime determination.

        Speaker: Dr So Chigusa (KEK)
      • 3:40 PM
        Higgs self-coupling as a probe of sphaleron properties 20m

        Sphaleron is a non-perturbative solution of electroweak gauge theories, which is crucially important for various scenarios of baryogenesis. In many of new physics models, the deviation in the sphaleron energy from the standard-model prediction is proportional to that in the triple Higgs boson coupling with opposite signs. This interesting relation would be useful to determine the sphaleron property by measuring the Higgs self-coupling at future collider experiments.

        Speaker: Prof. Shinya Kanemura (Osaka)
      • 4:00 PM
        Probing μτ flavor-violating solutions for the muon g−2 anomaly at colliders 20m

        The discrepancy between the measured value and the Standard Model prediction of the muon anomalous magnetic moment is one of the most important issues in the particle physics. It is known that introducing a mediator boson X with the μτ lepton flavor violating (LFV) couplings is one good solution to explain the discrepancy, due to the τ mass enhancement in the one-loop correction. We study the signal of this model, i.e. the same-sign leptons, at the LHC and at the Belle II, assuming the flavor-diagonal couplings are suppressed. We show that the Belle II experiment is highly sensitive to the scenario in the mediator mass range of {\cal O}(1-10)~GeV, using the e+e− to \mu \tau \mu \tau process induced by the X.

        Speaker: Dr Michihisa Takeuchi (KMI, Nagoya)
    • 10:00 AM 11:00 AM
      KEK-PH collider: Lecture: Basics of Hadron Collider Physics(Dr. Zhen Liu)
      • 10:00 AM
        Lecture1: Basics of Hadron collider 1h

        Lecture 1: Basics of Hadron Collider Physics
        Intro to colliders
        Parton distribution function
        Kinematics
        Discovery of the Higgs boson

        I will introduce the basic concepts of hadron collider physics in the first part of the lecture and discuss a few advanced topics in the second part of the lecture. The goal is to let the audience get familiar with the key concepts/methodology of hadron collider physics, such as the parton distribution function and kinematical considerations. With these basic concepts, we can build a picture of the relevant processes at hadron colliders and have a deep appreciation of the endeavor of the discovery of the Higgs boson, and get prepared for quantitative assessment of physics potentials at hadron colliders. In the second half of the lecture, we will continue the discussion to precision physics, as well as some rudimentary understanding of statistics. If time permits, the basics of currently very active research topic of long-lived particles at colliders and satellite experiments will be introduced. Finally, I will sketch a longer-term picture of future collider program and physics.

        Speaker: Dr Zhen Liu (Maryland)
    • 11:30 AM 12:30 PM
      KEK-PH collider: Lecture Advanced topics of Hadron Collider Physics (Dr. Zhen Liu)
      Convener: Mihoko NOJIRI (Professor)
      • 11:30 AM
        Lecture 2: Advanced topics of Hadron Collider Physics 1h

        A bit of Statistics
        Precision: Jets, Higher-order corrections, more kinematics, and machine learning
        Long-Lived Particles
        Future hadron colliders (physics)

        I will introduce the basic concepts of hadron collider physics in the first part of the lecture and discuss a few advanced topics in the second part of the lecture. The goal is to let the audience get familiar with the key concepts/methodology of hadron collider physics, such as the parton distribution function and kinematical considerations. With these basic concepts, we can build a picture of the relevant processes at hadron colliders and have a deep appreciation of the endeavor of the discovery of the Higgs boson, and get prepared for quantitative assessment of physics potentials at hadron colliders. In the second half of the lecture, we will continue the discussion to precision physics, as well as some rudimentary understanding of statistics. If time permits, the basics of currently very active research topic of long-lived particles at colliders and satellite experiments will be introduced. Finally, I will sketch a longer-term picture of future collider program and physics.

        Speaker: Prof. Zhen Liu (Maryland)
    • 1:30 PM 5:00 PM
      KEK-PH collider: (workshop)
      Convener: Mihoko NOJIRI (Professor)
      • 1:30 PM
        Tagging boosted weak gauge bosons with deep learning 20m

        We demonstrate that the classification of boosted, hadronically-decaying weak gauge bosons can be significantly improved over traditional cut-based and BDT-based methods by using deep learning and the jet charge variable. We construct binary taggers for W+ vs. W− and Z vs. W discrimination, as well as an overall ternary classifier for W+/W−/Z discrimination. We construct both ordinary and new composite CNNs. The method enhances the physics potential in SM measurements and searches for new physics that is sensitive to the electric charge of weak gauge bosons.

        Speaker: Prof. Cheng-Wei Chiang (National Taiwan University)
      • 1:50 PM
        Minkowski Functionals for Jet Tagging 20m
        Speaker: Dr Sung Hak LIM
      • 2:10 PM
        Learning Physics at Future e-e+ Colliders with Machine 20m

        Information deformation and loss in jet clustering are one of the major limitations for precisely measuring hadronic events at future e−e+ colliders. Because of their dominance in data, the measurements of such events are crucial for advancing the precision frontier of Higgs and electroweak physics in the next decades. In a recent arXiv paper (https://arxiv.org/pdf/2004.15013.pdf), the speaker and his collaborators showed that this difficulty can be well-addressed by synergizing the event-level information into the data analysis, with the techniques of deep neutral network. In relation to that, they introduced a CMB-like observable scheme, where the event-level kinematics is encoded as the Fox-Wolfram (FW) moments at leading order and multi-spectra at higher orders. Then they developed the classifiers in two ways to achieve this goal: jet-level with the FW moments and brute-force event-level. As an application, these classifiers were applied to measuring Higgs decay width at e−e+ colliders, with the data of 5ab−1@240GeV. The precision obtained is significantly better than the baseline ones presented in documents. In this talk, the speaker will give an overview on these aspects and discuss their potential impacts for future collider-physics study.

        Speaker: Prof. Tao Liu (The Hong Kong University of Science and Technology)
      • 2:30 PM
        Flavor Physics at Future Z-Factories: $b\to s\tau\tau$ Measurements and Beyond 20m

        $b\to s\tau^+\tau^-$ measurements are highly motivated for addressing lepton-flavor-universality(LFU)-violating puzzles such as $R_{K^{(\ast)}}$ anomalies. The anomalies of $R_{D^{(*)}}$ and $R_{J/\psi}$ further strengthen their necessarity and significance, given that the LFU-violating hints from both involve the third-generation leptons directly. $Z$ factories of future $e^-e^+$ colliders stand at a great position to conduct such measurements, because of their relatively high production rates and reconstruction efficiency for $B$ mesons at $Z$ pole. To fully explore this issue, we pursue a sensitivity study for four $b\to s\tau^+\tau^-$ benchmark channels, namely, $B^0\to K^{\ast 0} \tau^+ \tau^-$, $B_s\to\phi \tau^+ \tau^-$, $B^+ \to K^+ \tau^+ \tau^- $ and $B_s \to \tau^+ \tau^-$, at the future $Z$ factories. A scheme of $B$-meson reconstruction mainly based on detector tracking system is developed for this purpose. The simulations indicate that at Tera-$Z$ the branching ratios of the first three channels can be measured with a precision of $\mathcal O(10^{-7})$ and that of $B_s \to \tau^+ \tau^-$ with a precision of $\mathcal O(10^{-5})$. The interpretation of these results in effective field theory is presented.

        Speaker: Dr Lingfeng Li (HKUST)
      • 3:10 PM
        Search for lepton-flavor violating processes at LHC 30m
        Speaker: Prof. Soji Tsuno (KEK)
      • 3:40 PM
        Cornering Higgsino at the LHC 20m

        A Higgsino-like particle is an attractive candidate for the WIMP dark matter. Thanks to the electroweak interaction, the production cross section of the Higgsino at the LHC is rather high. However, the huge Standard Model background prevents the Higgsino discovery, and the present LHC sensitivity can be even worse than the LEP result in some parameter region. In this talk, I discuss a new search strategy to explore such a parameter region by utilizing exotic tracks from the charged Higgsino: soft displaced track and disappearing track.

        Speaker: Dr Satoshi Shirai (Kavli IPMU, Tokyo)
      • 4:00 PM
        Probing long-lived particles at Higgs factories 20m

        We study displaced vertex signatures of long-lived particles (LLPs) from exotic Higgs decays in the context of a Higgs-portal model and a neutral-naturalness model at the circular electron positron collider (CEPC) and future circular collider e+ e− (FCC-ee). Such two models feature two representative mass ranges for LLPs, which show very different behavior in their decay signatures. The Higgs-portal model contains a very light sub-GeV scalar boson stemming from a singlet scalar field appended to the Standard Model. Such a light scalar LLP decays into a pair of muons or pions, giving rise to a distinctive signature of collimated muon-jet or pion-jet, thanks to the sub-GeV mass. On the other hand, the neutral-naturalness model, e.g., folded supersymmetry, predicts the lightest mirror glueball of mass O(10)  GeV, giving rise to long decays with a large transverse impact parameter because of the relatively large mass. Utilizing such distinct characteristics to remove the background, we estimate the sensitivities of searches for light scalar bosons and mirror glueballs at the CEPC and FCC-ee. We find either complementary or stronger coverage compared to the previous results in the similar contexts.

        Speaker: Dr Zeren Simon Wang (APCTP)
      • 4:20 PM
        Searches for new light particles at ILC main beam dump 20m

        The International Linear Collider (ILC) is the highest-priority next collider as a Higgs factory. In the linear collider, almost all accelerated particles that do not interact strongly at the collision point are not recycled and are all thrown into beam dumps, which is very different from the case of circular colliders. Therefore, a beam dump experiment in the linear collider can be performed in parallel with the main experiment, which has a great advantage in terms of statistics. In this study, we estimate the detection sensitivity to new light particles that interacts not only to primary electron beams but also to secondary photons, electrons, positrons, and muons in the ILC beam dump. This study demonstrates that the ILC beam dump experiment has an enhanced sensitivity to axion-like particles and leptophilic dark sectors by an order of magnitude compared with previous experiments and other future beam dump experiments.

        Speaker: Dr Yasuhito Sakaki (KEK)
    • 10:00 AM 12:00 PM
      KEK-PH + KEK-Cosmo DM: Lecture
      Convener: Motoi Endo
      • 10:00 AM
        Direct search of dark matter 2h

        Direct search of dark matter is expanding its search phase space. This lecture will cover the concepts, current status, and prospects of the dark matter direct searches including related topics.

        Speaker: Prof. Kentaro Miuchi (Kobe University)
    • 1:00 PM 6:00 PM
      KEK-PH + KEK-Cosmo DM: Workshop
      Convener: Motoi Endo
      • 1:00 PM
        XENON1T excess in local Z_2 DM models with light dark sector 20m
        Speaker: Jongkuk Kim (KIAS)
      • 1:20 PM
        A model of electroweakly interacting non-abelian vector dark matter 20m
        Speaker: Kohei Matsushita (Nagoya University)
      • 1:40 PM
        Pseudo-Nambu-Goldstone dark matter from gauged $U(1)_{B-L}$ symmetry 20m
        Speaker: Yoshihiko Abe (Kyoto University)
      • 2:00 PM
        Unification for Darkly Charged Dark Matter 20m
        Speaker: Masaki Yamada (Tohoku University)
      • 2:20 PM
        Break 30m
      • 2:50 PM
        Indirect Search for Secluded Dark Matter with Neutrinos 20m
        Speaker: Kento Asai (University of Tokyo)
      • 3:10 PM
        Dependence of accessible dark matter annihilation cross-sections on the density profiles of dwarf spheroidal galaxies with the CTA 20m
        Speaker: Nagisa Hiroshima (University of Toyama)
      • 3:30 PM
        Non-spherical dark halo structures and J-factor mapping for the Galactic dwarf spheroidals 20m
        Speaker: Kohei Hayashi (Tohoku University)
      • 3:50 PM
        Primordial Black Hole Dark Matter 20m
        Speaker: Kazunori Kohri (KEK)
      • 4:10 PM
        Break 30m
      • 4:40 PM
        Novel approaches to ultra-low-mass dark matter detection 20m
        Speaker: Yevgeny Stadnik (Kavli IPMU)
      • 5:00 PM
        Stability of Axion Dark Matter-Photon Conversion 20m
        Speaker: Emi Masaki (Kobe University)
      • 5:20 PM
        Axion Supernova-scope 20m
        Speaker: Natsumi Nagata (University of Tokyo)
    • 4:00 PM 6:00 PM
      KEK-PH + KEK-Cosmo DM: Lecture
      Convener: Motoi Endo
      • 4:00 PM
        Particle-physics constraints from stars 2h

        Stars can be powerful laboratories to constrain the properties of low-mass particles such as neutrinos, axions, dark photons, low-mass dark-matter candidates, and others. This lecture will mainly focus on the back-reaction on stellar properties caused by the emission of new particles, so we will explain some of the basics of stellar evolution theory. We will also review some old and new limits that are of particular interest at the particle-physics "intensity frontier".

        Speaker: Prof. Georg Raffelt (Munich, Max Planck Inst.)
    • 1:00 PM 4:00 PM
      KEK-PH + KEK-Cosmo GW: Short Talk
      Convener: Motoi ENDO
      • 1:00 PM
        NANOGrav and primordial black holes 30m
        Speaker: Takahiro Terada (IBS)
      • 1:40 PM
        Testing stochastic gravitational wave signals by PBH microlensing 30m
        Speaker: Sunao Sugiyama (Kavli IPMU, Tokyo)
      • 2:20 PM
        NANOGrav and first-order phase transition in the early Universe 30m
        Speaker: Masaki Yamada (Tohoku)
      • 3:00 PM
        Future measurements of stochastic gravitational wave background through pulsar timing by SKA 30m
        Speaker: Keitaro Takahashi (Kumamoto)
    • 4:00 PM 6:00 PM
      KEK-PH + KEK-Cosmo GW: Lecture
      Convener: Motoi ENDO
      • 4:00 PM
        Gravitational waves from phase transitions at the electroweak scale 1h

        In extensions of the Standard Model of particle physics, this could have been a first order phase transition, at about 10 picoseconds after the Big Bang. I will discuss the dynamics of the transition, the characteristic spectrum of gravitational radiation, and the prospects for observing the radiation at the future space-based gravitational wave detector LISA.

        Speaker: Prof. Mark Hindmarsh (Sussex)
      • 5:00 PM
        Gravitational waves from first-order phase transitions: Towards a better prediction 1h

        In the upcoming decades, gravitational waves (GWs) will be an important tool in probing the early Universe and in testing high energy physics. In this lecture I will review GW production in cosmological first-order phase transitions, putting more emphasis on analytic understanding of the process. The structure of the lecture will be:
        - Basics of GW production in the early Universe
        - GW production in first-order phase transitions: conditions for producing large amount GWs & particle models satisfying these conditions
        - Three GW sources in first-order phase transitions: bubble collisions, sound waves, turbulence
        - Towards better prediction of the signal: analytic vs. numerical
        - Recent hot topic(s)

        Speaker: Dr Ryusuke Jinno (DESY)
    • 10:00 AM 12:00 PM
      KEK-PH Amplitude: Lecture
      Convener: Ryuichiro Kitano (KEK)
      • 10:00 AM
        An on-shell view of four-dimensional blackholes 2h

        In this lecture, I will introduce massive spinor helicity formalism developed in 1709.04891, and explore the electromagnetic/gravitational interactions of high spin particles. We will define, kinematically, minimal coupling for particles of arbitrary spin. While there are no known elementary particles beyond spin-2, we will demonstrate that these minimal coupling the multiple spin-moments of rotating black holes. This particle like description of black hole dynamics is a reflection of the no hair theorem.

        Speaker: Prof. Yu-Tin Huang (NTU)
    • 10:00 AM 12:00 PM
      KEK-PH Amplitude: Lecture
      Convener: Ryuichiro Kitano (KEK)
      • 10:00 AM
        Introduction to the amplituhedron 2h

        Recent years have revealed a variety of mathematical and physical structures underlying scattering amplitudes, with redefinitions of scattering amplitudes where the usual principles of locality and unitarity are derivative from geometry. The amplituhedron is one of the examples, a purely geometric object which gives scattering amplitudes of planar N=4 SYM. All tree-level amplitudes and all-loop integrands correspond to the differential forms with logarithmic singularities on the boundaries of the amplituhedron. In this lecture, I will give a review of scattering amplitudes in planar N-4 SYM first. After this, I will explain the definition of the amplituhedron and see how to obtain scattering amplitudes from this geometric object.

        Speaker: Dr Ryota Kojima (NTU)
    • 5:00 PM 6:30 PM
      KEK-PH Long-lived particles: Lecture
      Convener: Dr Ishida Hiroyuki (KEK)
      • 5:00 PM
        BSM Physics with Light Particles 1h 30m

        I will discuss the motivations for physics beyond the Standard Model below the Fermi scale, resulting in the existence of feebly interacting long-lived particles. The experimental prospects to search for these particles will be outlined.

        Speaker: Prof. Mikhail Shaposhnikov (EPFL)
    • 10:00 AM 12:00 PM
      KEK-PH Long-lived particles: Lecture
      Convener: Prof. Mihoko Nojiri (KEK)
      • 10:00 AM
        Fixed target experiments using electron and positron beams 2h

        Now that new heavy particles have not been found at the LHC, focusing on light and weakly interacting new particles is one direction to go. Fixed target experiments using accelerators play a part in this. I will explain the basics of the phenomena in fixed target experiments, and how to calculate the number of signal on a target induced by e+ e- beams. Trends in some fixed-target experiments will be introduced. I will discuss a few ideas for fixed target experiments at the ILC, and hope
        that this talk will encourage people to think about the possibility of experiments other than the collider experiment at the ILC site.

        Speaker: Yasuhito Sakaki (KEK)
    • 1:00 PM 4:00 PM
      KEK-PH Flavor: Workshop
      Conveners: Mihoko Nojiri (KEK), Ryuichiro Kitano (KEK)
      • 1:00 PM
        Heavy QCD Axion in $b\to s$ transition 20m
        Speaker: Kohsaku Tobioka (Florida State University)
      • 1:20 PM
        Revisiting electroweak radiative corrections to $b \to s\ell\ell$ in SMEFT 20m
        Speaker: Daiki Ueda (University of Tokyo)
      • 1:40 PM
        Imprint of SUSY in radiative B meson decays 20m
        Speaker: Keisho Hidaka (Tokyo Gakugei University)
      • 2:00 PM
        Lepton flavor violations from soft SUSY breaking terms in modular flavor models 20m
        Speaker: Takashi Shimomura (Miyazaki University)
      • 2:20 PM
        Break 30m
      • 2:50 PM
        Probing $\mu e \gamma \gamma$ contact interactions with $\mu \to e$ conversion 20m
        Speaker: Masato Yamanaka (Osaka City University)
      • 3:10 PM
        Time evolution of Lepton family Number carried by Majorana Neutrinos 20m
        Speaker: Takuya Morozumi (Hiroshima University)
      • 3:30 PM
        Quark-hadron duality for charm mixing in the 't Hooft model 20m
        Speaker: Hiroyuki Umeeda (Academia Sinica))
    • 4:30 PM 6:00 PM
      KEK-PH Flavor: Lecture
      Convener: Hiromasa Takaura (KEK)
      • 4:30 PM
        Filling the gap between inclusive and exclusive processes 1h 30m

        Computation of QCD processes is always hard. The use of lattice QCD is limited to low-lying hadronic (often single-particle) states, so that only exclusive processes can be computed. Perturbation theory, plus operator product expansion, is used for high-energy processes for which the final states are not specified, or summed over all possible states, i.e. inclusive processes. There are annoying cases, where two analyses are mutually contradictory, as seen in the |Vcb| and |Vub| determinations. They suggest that there remain some unknown systematic effects in either or both analyses. In this talk I argue that one can construct a theoretical method that can treat both cases in principle, by extending the lattice QCD approach.

        Speaker: Prof. Shoji Hashimoto (KEK)
    • 5:00 PM 6:30 PM
      KEK-PH Flavor: Lecture
      Convener: Satoshi Mishima (KEK)
      • 5:00 PM
        Exclusive b -> s mu mu Processes as Precision Probes of the Standard Model 1h 30m

        I will provide a review of the theoretical basis of predictions for exclusive b -> s mu mu processes within the Standard Model and beyond. I will then discuss how present phenomenological studies of these decays are carried out, what improvements are forthcoming, and how the results should be interpreted.

        Speaker: Dr Danny van Dyk (TUM)