Conveners
Parallel Session 2
- Daisuke Nomura (KEK)
Parallel Session 2
- Daisuke Nomura (KEK)
Parallel Session 2
- Toru Goto (KEK)
Parallel Session 2
- Toru Goto (KEK)
Parallel Session 2
- Satoshi Mishima (KEK)
Parallel Session 2
- Satoshi Mishima (KEK)
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Yutaro Shoji (KMI, Nagoya U.)04/12/2018, 15:30The electroweak vacuum is not absolutely stable in the standard model and various models beyond the standard model. This is due to an appearance of another deeper vacuum, into which the electroweak vacuum can decay. We have performed one-loop calculations of the decay rates in various models including the standard model. In this talk, I explain current status of our analysis on models beyond...Go to contribution page
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Ryosuke Sato (DESY)04/12/2018, 15:45To calculate lifetime of false vacuum, we have to estimate bounce action. We derive a lower bound on the bounce action without solving equation of motion of scalar field explicitly. This technique is useful to analyze models with large number of scalar fields.Go to contribution page
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Hiroki Matsui (Tohoku University)04/12/2018, 16:00
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Wen Yin (KAIST)04/12/2018, 16:15The possibility of generating the baryon asymmetry of the Universe via flavor oscillation in the early Universe is discussed. After the inflation, leptons are born in some states, travel in the medium, and are eventually projected onto flavor eigenstates due to the scattering via the Yukawa interactions. By using the Lagrangian of the Standard Model with the Majorana neutrino mass terms, llHH,...Go to contribution page
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Mitsunori Kubota (Osaka University)04/12/2018, 16:45Although the discovered Higgs boson appears to favor the standard model, the structure of the Higgs sector is not clear yet. For instance, we can consider some extension of the Higgs sector while we keep consistency in the collider experiments. In particular, CP-violating Higgs sector is motivated by the baryon number asymmetry of the Universe. In this talk, we discuss how effects of the...Go to contribution page
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Takumi Kuwahara (Institute for Basic Science)04/12/2018, 17:00We revisit the minimal supersymmetric SU(5) grand unified theory with three right-handed neutrinos in which universality conditions for soft-supersymmetry breaking parameters are imposed at the Planck scale. If the Majorana masses for the neutrinos are around 10^15 GeV, large mixing angles and phases in the neutrino sector lead to flavor-violation and CP-violation in the right-handed down...Go to contribution page
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Chang-Hun Lee (NCTS)04/12/2018, 17:15In the loop-induced mixing of multiple flavors of fields, there exist non-perturbative effects which produce phenomenolgical effects which have been improperly considered so far especially when the mass differences among flavors are small. In this talk, I will discuss how to correctly handle such effects and their phenomenological implications especially in connection with CP violation. I will...Go to contribution page
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Po Yen Tseng04/12/2018, 17:30We show that a novel decay mode Zh of the bound state of stop-anti-stop pair in the ground state may have a significant branching ratio if the CP violating mixing appears in the stop sector, even after we apply the stringent constraint from the measurement of the electric dipole moment (EDM) of the electron. We show that the branching ratio can be as large as 10% in some parameter space that...Go to contribution page
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Samadrita Mukherjee (Indian Association for the Cultivation of Science)05/12/2018, 15:30Presence of nonholomorphic soft SUSY breaking terms is known to be a possibility in the popular setup of the Minimal Supersymmetric Standard Model (MSSM). It has been shown that such a scenario known as NonHolomorphic Supersymmetric Standard Model (NHSSM) could remain ‘natural’ (i.e., not fine-tuned) even in the presence of a rather heavy higgsino-like LSP. However, it turns out that...Go to contribution page
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Norimi Yokozaki (Tohoku University)05/12/2018, 15:45Since constraints from LHC SUSY searches and direct detection experiments of dark matter become increasingly stringent, it becomes non-trivial task to find a SUSY model which can explain the muon g-2 anomaly and the nature of dark matter, simultaneously. In this talk, I will present a relatively simple SUSY model solving these two important issues, satisfying the LHC and other constraints. It...Go to contribution page
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Nobuhiro Maekawa (Nagoya Univ. KMI)05/12/2018, 16:00If from natural SO(10) GUT, in which DT splitting can be realized with natural assumption in which all interactions allowed by the symmetry are introduced with O(1) coefficients, one singlet field is reduced, SUSY is spontaneously broken in meta-stable vacuum. Although gaugino masses become much smaller than sfermion masses, we discuss a few interesting phenomenological predictions of this scenario.Go to contribution page
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Yuji Omura (KMI, Nagoya Univ.)05/12/2018, 16:15We construct an extended Standard Model (SM), motivated by the strong CP problem and the dark matter. In our model, the parity symmetry is conserved, introducing the extra gauge symmetry, $ SU(2)_R ¥times U(1)_R$. The charges of $SU(2)_R ¥times U(1)_R$ are assigned to the mirror fields in the same way as in the SM, but the chirality of the extra fermions is opposite to respect the parity...Go to contribution page
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Ling-Xiao Xu (Peking University)05/12/2018, 16:45We will present a neutral naturalness model with emphasizing the realistic misalignment between the electroweak scale and the new physics scale, and we will discuss its Ultraviolet realization in holographic Higgs setup, which realizes the finiteness of the Higgs potential.Go to contribution page
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Kei Yagyu (Seikei University)05/12/2018, 17:00We discuss composite 2 Higgs doublet models based on the global symmetry breaking SO(6) to SO(4)*SO(2), where 2 Higgs doublets emerge as a pseudo Nambu-Goldstone bosons. The Higgs potential is generated at one-loop level via the Coleman-Weinberg mechanism. We show that the prediction of the Higgs boson mass spectrum and couplings can be different from those in the minimal supersymmetric standard model.Go to contribution page
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Johannes Braathen (Osaka University)05/12/2018, 17:15The precise study of the Higgs boson properties -- in particular its mass and couplings -- is of the utmost importance for the investigation of BSM models with extended Higgs sectors. As New Physics currently seems to be driven to higher scales by experimental searches, the framework of Effective Field Theory becomes necessary to address the large mass hierarchies that appear in calculations....Go to contribution page
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Kayoung Ban (Yonsei University)05/12/2018, 17:30Augmentation of invisible information with respect to many hypothetical models of background and signal processes, can highly improve the performance of the machine learning classifiers for HEP event discrimination. In this regard di-Higgs searches in the channels with multiple invisible final states, is one of the most important applications. Focusing on the di-Higgs channels with 2 bottom...Go to contribution page
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Jaehoon Leem (Korea Institute For Advanced Study)06/12/2018, 15:30We report our works on calculation of exclusive B-meson decays to charmed mesons. In lattice simulation, we use the Oktay-Kronfeld action for the bottom and the charmed quark and HISQ action for the light quarks. We report how discretization error in the lattice simulation can be controlled in systematic way.Go to contribution page
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Daiki Ueda (Sokendai)06/12/2018, 15:45We investigate model independent top-quark corrections to ∆F = 2 processes within the framework of the Standard Model Effective Field Theory. Dimension-six ∆F = 1 operators contribute to them though renormalization group evolutions and matching conditions. We provide a complete one-loop matching formula from the top quarks for ∆F = 2 transitions. We also demonstrate these corrections on ∆MBs...Go to contribution page
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So Chigusa (University of Tokyo)06/12/2018, 16:00We propose a simple mechanism for stabilizing flavon fields with aligned vacuum structure in models with discrete flavor symmetry. The basic idea is that flavons are stabilized by the balance between the negative soft mass and non-renormalizable terms in the potential. We explicitly discuss how our mechanism works in A4 flavor model, and show that the field content is significantly simplified....Go to contribution page
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Syuhei Iguro (Nagoya University)06/12/2018, 16:15There are discrepancies between the experimental results and the Standard Model predictions, in the lepton flavor universality of the semileptonic $B$ decays: $B ¥to D^{(*)} ¥ell ¥nu$. As the new physics interpretations, new charged vector and charged scalar fields, that dominantly couple to the second and third generations, have been widely discussed. In this work, we study the signals of the...Go to contribution page
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Peiwen Wu (Korea Institute For Advanced Study)06/12/2018, 16:45Recently, various leptoquark models have been investigated in terms of interpreting the recent B meson anomalies. We study the possible implications of relevant leptoquark scenarios on the top quark observables.Go to contribution page
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Hirashi Okui (Niigata University)06/12/2018, 17:00We consider the neutrino tomography. The idea of neutrino tomography is the imaging of the Earth ’s interior structure by using the neutrino. We assume the neutrino pair beam which has recently been proposed as neutrino source. The beam produces a large amount of neutrino and antineutrino pairs from the circulating partially stripped ions and provides the possibility to measure precisely the...Go to contribution page
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Yuichi Uesaka (Saitama University)06/12/2018, 17:15The charged lepton flavor violation (CLFV) is a good probe to search for new physics beyond the standard model. If there is a neutral boson X which is lighter than muon and has CLFV interaction, a muon can decay into an electron and an X, i.e. mu-> e+X. The search for this process is expected to constraint the property of X. In this talk, we focus on a search for the rare decay of muon in a...Go to contribution page
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Masato Yamanaka (Kyushu Sangyo University)06/12/2018, 17:30We revisit charged lepton flavor violating (CLFV) scattering $\ell_{i}N \to \ell_{j}X$ mediated by scalar interaction. We point out that a new subprocess $\ell_{i}g \to \ell_{j}g$ via the effective interactions of CLFV mediator and gluon gives large contribution. Furthermore, in the light of quark number conservation, we consider quark pair-production processes $\ell_{i}g \to \ell_{j} Q...Go to contribution page