The 2nd Seoul Particle Theory Workshop

22 May 2026, 09:00 → 31 May 2026, 15:00 Asia/Seoul

1503 (KIAS)

Gilad Perez (Weizmann), Seung J. Lee (Korea Institute for Advanced Study), Taewook Youn (Cornell University)

Welcome to 2026 Seoul Particle Theory Workshop. The workshop aims to bring together a mix of theorists working on all aspects of beyond the standard model physics, as well as experimentalists. We plan a relaxed program with ample time for discussions.

Restaurant_Map_KIAS.pdf

Friday 22 May

14:00 → 20:00 Excursion (optional)

Saturday 23 May

11:00 → 19:00 Excursion (optional)

Sunday 24 May

10:00 → 18:00 Excursion (optional)

Monday 25 May

10:00 → 10:30 Registration

10:30 → 11:00 Morning Session

10:30 Exotic physics experiments: what’s cooking in our pots

Speaker: DMITRY BUDKER (Helmholtz Institute Mainz and UC Berkeley)

11:00 → 11:30 Coffee break

11:30 → 12:30 Morning 2

11:30 Probing heavy dark matter in red giants

Speaker: Seokhoon Yun (Kyungpook National University)

KIAS_S.Yun_25.05.26.pdf

12:00 WIMP Meets ALP: Coherent Freeze-Out of Dark Matter

Speaker: Bingrong Yu (Cornell University)

Coherent_Freeze-out.pdf

14:30 → 15:30 Afternoon 1

14:30 Composite ultralight scalar clocks and fifth forces

Speaker: Abhishek Banerjee (University of Maryland)

15:00 Superheavy Dark Matter

Speaker: Prof. Seong Chan Park (Yonsei University)

15:30 → 16:00 Coffee break

16:00 → 17:00 Afternoon 2

16:00 Hadronic Injection in BBN: Progress and New Bounds on Heavy QCD Axions.

Speaker: Kohsaku Tobioka (Florida State University)

talk2026_KIAS.pdf

16:30 Gravitational Waves from Cosmic Strings

Speaker: Wei Xue (University of Florida (US))

CosmicString_weixue.pdf

Tuesday 26 May

10:30 → 11:00 Morning Session: Morning Session 1

10:30 Sommerfeld Enhancement from Quantum Forces for Dark Matter

Speaker: Steven Ferrante (Cornell University)

Sommerfeld_KIAS.pdf

11:00 → 11:30 Coffee break

11:30 → 12:30 Morning 2

11:30 Infrared Freeze-In of Magnetic Dipole Dark Matter

Speaker: Jae Hyeok Chang (Seoul National University)

Slides_Chang.pdf

12:00 Soft Gravitons, Medium Consequences, Hard Truths

Speaker: Sebastian Ellis (University of London (GB))

14:30 → 15:30 Afternoon 1

14:30 The bearable inhomogeneity of the baryon asymmetry

Speaker: Stefan Stelzl

15:00 The muon g-2: the showdown?

Speaker: Massimo Passera (INFN Padova)

Passera_20260526.pdf

15:30 → 16:00 Coffee break

16:00 → 17:00 Afternoon 2

16:00 Blackboard Discussion

Speaker: Prof. Gilad Perez (Weizmann)

16:30 Black Hole Induced Vacuum Decay

Speaker: Michael Geller (Tel Aviv University)

18:00 → 21:00 Banquet

Wednesday 27 May

10:30 → 11:00 Morning Session

10:30 Lepton EDMs in the radiative lepton mass models

Speaker: Yoshihiro SHIGEKAMI (Henan Normal University)

2ndWorkshopKIAS-Shigekami.pdf

11:00 → 11:30 Coffee break

11:30 → 12:30 Morning 2

11:30 Pseudo-Nambu-Goldstone inflation with ZN symmetric waterfall fields

Speaker: Prof. Hyun Min Lee (CAU - Chung-Ang University (KR))

Seoul 2026_hmlee.pdf

12:00 Putting the Brakes on Axion Strings: Friction and Its Impact on the QCD Axion Abundance

Speaker: Anson Hook (University of Maryland)

AH_talk.pdf

14:30 → 15:30 Afternoon 1

14:30 Anomalies at the End of the Universe?

Speaker: Jay Hubisz (Syracuse University)

AnomaliesEnd.pdf

15:00 Single atom based sensor to search dark matter

Speaker: Manas Mukherjee (Centre for Quantum Technologies, National University of Singapo)

Korea_Particle_Physics_Conf_sub.pdf

15:30 → 16:00 Coffee break

16:00 → 17:00 Afternoon 2

16:00 Spin-Flavor Precession of Solar neutrinos

Speaker: Prof. Seodong Shin (Jeonbuk National University)

SeoulParticle2026-short.pdf

Thursday 28 May

10:30 → 11:00 Morning Session

10:30 Can pre-inflationary axions form miniclusters?

Speaker: Dr Heejoo Kim

HeejooKim.pdf

11:00 → 11:30 Coffee break

11:30 → 12:30 Morning 2

11:30 Mapping the Landscape of Large CP Violation in the C2HDM: From Near-Degeneracy to Hidden Sectors

Speaker: Prof. Jeonghyeon Song (Konkuk University)

Song-KIAS-C2HDM.pdf

12:00 A Quantum Origin for the Classical Axion

Speaker: Nicholas Rodd

14:30 → 15:30 Afternoon 1

14:30 Energy correlator: understanding QCD from positivity

Speaker: Minho Son

SEOULParticle26.pdf

15:00 Gravitational Wave Constraints from the Latest Interferometer Data

Speaker: Joern Kersten (University of Bergen)

InterferometerConstraints.pdf

15:30 → 16:00 Coffee break

16:00 → 17:00 Afternoon 2

16:00 Global Structure, Non-Invertible PQ Symmetry, and the DFSZ Domain Wall Problem

Speaker: Sungwoo Hong

Global Structure, NIPQ, and DW Problem in DFSZ_2nd Seoul Particle Theory Workshop_SH.pdf

16:30 Superhorizon Isocurvature as a Window into Dark Matter Production

Speaker: Wolfram Ratzinger (Weizmann Institute)

IsocurvatureKIAS-2.pdf

Friday 29 May

10:30 → 11:00 Morning Session

10:30 Minimal flavor violation and dark matter

Speaker: Shohei Okawa (APCTP)

MFVDM_Seoul.pdf

11:00 → 11:30 Coffee break

11:30 → 12:30 Morning 2

11:30 Gravitational Probes of Ultralight Dark Matter

Speaker: Hyungjin Kim (DESY)

12:00 How to estimate the transition rate at cosmological first order phase transition?

Speaker: Masahide Yamaguchi (Tokyo Institute of Technology)

14:30 → 15:00 Afternoon 1

14:30 Nuclear Clocks: A New Window into New & Old Physics

Speaker: Fiona Kirk (Weizmann Institute of Science)

presentation_Seoul26.pdf

15:00 → 17:00 Discussion: recent developments in particle physics: Discussion

Saturday 30 May

10:00 → 15:00 Discussion: recent developments in particle physics

Sunday 31 May

10:00 → 15:00 Discussion: recent developments in particle physics