2023 Winter-II NRF-JSPS Workshop in particle physics, cosmology, and gravitation

6 - 9 February 2023, Ewha Womans University, Seoul, Korea

Organizer

Jinn-Ouk Gong (Ewha, chair), 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), Perseas Christodoulidis (Ewha, online), Jinn-Ouk Gong (Ewha), Sang Hui Im (IBS), Kwang Sik Jeong (Pusan Nat), Sunghoon Jung (Seoul Nat), Tae Hyun Jung (IBS), Suro Kim (KIAS), Maria Mylova (Ewha), Jong-Chul Park (Chungnam Nat)

Japanese side

Shin'ichi Hirano (Tokyo Tech), Siyao Li (Tokyo Tech), Michiru Niibo (Ochanomizu U. / Tokyo Tech), Fumiya Sano (Tokyo Tech), Osamu Seto (Hokkaido), Tomo Takahashi (Saga), Masahide Yamaguchi (Tokyo Tech), Shuichiro Yokoyama (Nagoya), Chul-Moon Yoo (Nagoya), Jiale Zhang (Ochanomizu U./Tokyo Tech)

Program

February 6 (Mon)

Morning session (Chair: Jinn-Ouk Gong)

10:30 - 11:30: Siyao Li (Tokyo Tech) "Interaction between several types of cosmic strings"

Lunch and Discussion: 11:30 - 14:00

Afternoon session 1 (Chair: Chul-Moon Yoo)

14:00 - 15:00: Osamu Seto (Hokkaido) "The type-II seesaw mechanism in alternative gauged U(1)X and dark sector"

15:00 - 16:00: Maria Mylova (Ewha) "Parity violating graviton non-Gaussianity in alpha-vacuum"

16:00 - 17:00: Photo session / Tea break and Discussion

Afternoon session 2 (Chair: Osamu Seto)

17:00 - 18:00: Fumiya Sano (Tokyo Tech) "Fermionic Signals in Primordial Non-Gaussianities"

February 7 (Tue)

Morning session (Chair: Masahide Yamaguchi)

10:30 - 11:30: Shuichiro Yokoyama (Nagoya) "GWB anisotropies "

Lunch and Discussion: 11:30 - 14:00

Afternoon session 1 (Chair: Kwang Sik Jeong)

14:00 - 15:00: Michiru Niibo (Ochanomizu U. / Tokyo Tech) "Future Constraints on Neutrino Lines from Dark Matter"

15:00 - 16:00: Sang Hui Im (IBS) "Probing microscopic origins of axions by the chiral magnetic effect"

Tea break and Discussion: 16:00 - 17:00

Afternoon session 2 (Chair: Jong-Chul Park)

17:00 - 18:00: Shin'ichi Hirano (Tokyo Tech) "Scalar Gauss-Bonnet and dynamical Chern-Simons black holes in EFT extension of GR"

February 8 (Wed)

Morning session (Chair: Ki-Young Choi)

10:30 - 11:30: Chulmoon Yoo (Nagoya) "Spacetime structure of type II PBH formation"

Lunch and Discussion: 11:30 - 14:00

Afternoon session 1 (Chair: Shuichiro Yokoyama)

14:00 - 15:00: Suro Kim (KIAS) "Perturbative unitarity in inflation model with multiple massive fields"

15:00 - 16:00: Tae Hyun Jung (IBS) "PBH formation in first-order phase transition"

Tea break and Discussion: 16:00 - 17:00

Afternoon session 2 (Chair: Tomo Takahashi)

17:00 - 18:00: Perseas Christodoulidis (Ewha) "Multi-field inflation: rapid turns and primordial black holes" (online)

February 9 (Thu)

Morning session (Chair: Chang Sub Shin)

10:30 - 11:30: Tomo Takahashi (Saga) "Tensions in cosmology: implications for new physics"

Closing remarks, Lunch and Discussion: 11:30 - 16:00

Practical details

The venue is Education Building B661, Ewha Womans University. The access to the venue can be found here.
There are 2 Education Buildings: A (red brick, marked in the Googlemap below) and B (this building looks more modern), with separate entrances. Once you reach the Education Building B, if the door is locked, use the interphone to ask the guard to open the door. Then take the elevator up to 6th floor, and you can easily find the room 661.

Here's how to get to the entrance of the Education Building B, assuming that you are coming from the subway line-2 station "Edae-yeok", which means "Ewha Womans University Station". [Not shown here -- it's located below (4)]

Once you enter the main gate of the university (4), follow the indicated path, enjoying the beautiful campus and a few historic buildings including the main hall.
Once you come down a stepway (8), you will reach the main entrance of the Education Building B (9).
In front of the entrance, the door would be open so that you can enter the building. If the entrance is locked, you may use the interphone (there will be a sign) to call the guard and ask him to open door, saying that you are a participant of the NRF-JSPS Workshop.

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