2022 Winter NRF-JSPS Workshop in particle physics, cosmology, and gravitation

22-24 February 2022, Seacloud hotel, Busan, Korea / online

Organizer

Jinn-Ouk Gong (Ewha, chair), Kwang Sik Jeong (Busan Nat), Tomo Takahashi (Saga, chair)

Goal

Based on the NRF-JSPS bilateral program, Korean and Japanese researchers meet together to bring their idea and to discuss recent topics in particle physics, cosmology, and gravitation to promote future collaborations.

Participants

• Korean side

Ki-Young Choi (SKKU), Jinn-Ouk Gong (Ewha), Kwang Sik Jeong (Pusan Nat), Sunghoon Jung (Seoul Nat), Dong Woo Kang (KIAS, online), Seokcheon Lee (SKKU, online), Jong-Chul Park (Chungnam Nat), Hyeonseok Seong (CTPU-IBS, online), Dong-han Yeom (Pusan Nat, online)

• Japanese side (all online)

Sebastian Bahamonde (TiTech), Asuka Ito (TiTech), Ryo Namba (RIKEN), Osamu Seto (Hokkaido), Tomo Takahashi (Saga), Junsei Tokuda (Kobe), Masahide Yamaguchi (TiTech), Shuichiro Yokoyama (Nagoya), Chul-Moon Yoo (Nagoya), Ying-li Zhang (Tongji)

Program (subject to change)

• 2/22 (Tue)

14:00 - 16:00 (Chair: Kwang Sik Jeong)

1. Sebastian Bahamonde, "Black hole solutions in Teleparallel gravity"

2. Osamu Seto, "Dark radiation constraints on hidden gauge-axion system"

3. Dong Woo Kang, "Resonant Leptogenesis In Modular A4 symmetric model"

16:00 - 16:30: Tea break

16:30 - 18:30 (Chair: Tomo Takahashi)

1. Junsei Tokuda, "Swampland conditions from positivity bounds"

2. Dong-han Yeom, "Classicality revisited by solving Wheeler-DeWitt equation directly"

3. Ki-Young Choi, "Reconstructing inflationary potential in the generalized slow-roll inflation"

• 2/23 (Wed)

10:00 - 12:00 (Chair: Jinn-Ouk Gong)

1. Ryo Namba, "Consistencies toward UV completion of cosmological EFT"

2. Shuichiro Yokoyama, "Induced gravitational waves with higher-order primordial non-Gaussianities"

3. Kwang Sik Jeong, "Axion-driven hybrid inflation over a barrier"

12:00 - 14:00: Lunch

14:00 - 16:00 (Chair: Sunghoon Jung)

1. Masahide Yamaguchi, "Polychronic Tunneling: New Tunneling Processes Experiencing Euclidean and Lorentzian Evolution Simultaneously"

2. Asuka Ito, "Gravitational effects on electron/muon g-2 measurements"

3. Jinn-Ouk Gong, "Effective field theory of waterfall in hybrid inflation"

16:00 - 16:30: Tea break

16:30 - 18:30 (Chair: Masahide Yamaguchi)

1. Chul-Moon Yoo, "Simulation of PBH formation from iso-curvature perturbations"

2. Hyeonseok Seong, "Axion emission from supernova with contact interactions"

3. Seokcheon Lee, "The meaning of the speed of light in the FLRW Universe"

• 2/24 (Thu)

10:00 - 12:00 (Chair: Ki-Young Choi)

1. Ying-li Zhang, "The merger rate of primordial black hole binaries with random distribution in dark halos"

2. Jong-Chul Park, "Cosmic-ray-induced Boosted Dark Matter"

3. Sunghoon Jung, "Hubble selection of the weak scale criticality"