KEK Theory Meeting on Particle Physics Phenomenology (KEK-PH2025winter)

Session

plenary

18 Feb 2025, 10:10

seminar hall (Building 3)

Conveners

plenary: Christophe Grojean

• Ryuichiro Kitano

plenary: Ian Low

• Ryuichiro Kitano

plenary: Shigeki Hirose, Koji Hashimoto

• Ian Low

plenary: Zoltan Ligeti, Abner Soffer

• Motoi Endo

plenary: Sokratis Trifinopoulos, Shingo Kazama

• Motoi Endo

plenary: Takeo Moroi, Motoko Fujiwara

• Kyohei Mukaida

plenary: Wen Yin, Akito Kusaka

• Kyohei Mukaida

plenary: Jacob Moritz

• Yuta Hamada

plenary: Kyohei Mukaida, Jorinde van de Vis

• Yuta Hamada

4. CERN Future Circular Collider: an electroweak and flavour factory

Christophe Grojean

18/02/2025, 10:10

5. Quantum Entanglement and Emerging Symmetry

Ian Low

18/02/2025, 11:10

6. Recent results from ATLAS and prospects for HL-LHC

Shigeki Hirose

18/02/2025, 13:30

7. Recent results in MLPhys --- "Machine Learning Physics" initiative in Japan

Koji Hashimoto

18/02/2025, 14:10

8. Majorana phases beyond neutrinoless double beta decay

Zoltan Ligeti

19/02/2025, 09:00

9. Recent updates and future prospects of the Belle II experiment

Abner Soffer

19/02/2025, 09:40

I will report recent results and prospects for future results from the Belle II experiment

10. Flavor Patterns of Fundamental Particles from Quantum Entanglement?

Sokratis Trifinopoulos

19/02/2025, 10:30

The Cabibbo-Kobayashi-Maskawa (CKM) matrix, which controls flavor mixing between the three generations of quark fermions, is a key input to the Standard Model of particle physics. In this paper, we identify a surprising connection between quantum entanglement and the degree of quark mixing. Focusing on a specific limit of 2→2 quark scattering mediated by electroweak bosons, we find that the...

11. Direct Dark Matter Detection with Liquid Xenon Detectors

Shingo Kazama

19/02/2025, 11:10

12. Dark Matter Detection using Quantum Bits

Takeo Moroi

20/02/2025, 09:00

I will discuss a possibility to use quantum bits (qubits) for wave-like-dark-matter detection. I will explain the basic idea and show the expected sensitivity. I will also discuss an idea to enhance the sensitivity using quantum nature of the qubits.

13. Soft Collinear Effective Theory for heavy dark matter annihilation

Motoko Fujiwara

20/02/2025, 09:40

Electroweakly interacting stable particles in the (1 − 10) TeV mass range can be a dark matter candidate with rich testability.
In particular, gamma-ray line-like features are expected to be a smoking-gun signature for indirect detection.
In this framework, one fundamental question follows; how to distinguish DM spin among DM candidates with the same electroweak interaction by contrasting...

14. Undulators as axion factories

Wen Yin

20/02/2025, 10:30

I will present a low-cost experimental proposal for axion searches at synchrotron radiation facilities, such as SPring-8, NanoTerasu, and Photon Factory. Specifically, I will discuss the method for calculating axion production in an undulator, a type of light source widely used across various fields. By positioning an axion detector outside the shield used in the primary experiments, we can...

15. Cosmic Microwave Background

Akito Kusaka

20/02/2025, 11:10

16. Candidate de Sitter Vacua

Jacob Moritz

21/02/2025, 09:00

17. Cascade of Energetic SM Particles

Kyohei Mukaida

21/02/2025, 11:00

18. The bubble wall velocity in cosmological phase transitions

Jorinde van de Vis

21/02/2025, 11:40

Cosmological first order phase transitions are a promising source of gravitational waves, and a possible explanation of the baryon asymmetry and dark matter abundance.
Predicting the phenomenological consequences of such phase transitions requires knowledge of the expansion velocity of the bubbles formed in a phase transition.
In this talk, I will present WallGo, a software package for the...