IBS-PNU Joint Workshop on Particle Physics and Cosmology

7 Dec 2022, 09:00 → 10 Dec 2022, 15:00 Asia/Seoul

The IBS-PNU Joint Workshop on Particle Physics and Cosmology will be held during December 7-10, 2022 at the Paradise Hotel, Busan, Korea. The workshop is jointly organized by Center for Theoretical Physics of the Universe (CTPU) at IBS and Center for Cosmological Constant Problem (CCCP) at Pusan National University (PNU). The purpose of this workshop is to bring together researchers from particle physics and cosmology to present and discuss our theoretical understanding of nature and prospects for future progress.

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Information

• Workshop place
- Paradise Hotel Busan
- More information: Paradise Hotel
- The workshop will be held in the Sicily Room (Main Building 1F).

• Accommodation
- Kolon Seacloud Hotel
- More information: Kolon Seacloud Hotel
- It takes about 2 minutes on foot from the Kolon Seacloud Hotel to the workshop place.

• Registration deadline: November 25th, 2022
- Number of participants will be limited to 55.
- Accommodations will be provided (breakfast not included) to all invited participants and limited funds are available for some participants to support the accommodations upon request.

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Invited speakers

• Anthony Francis (NYCU)
• Thomas Flacke (KIAS)
• Minho Son (KAIST)
• Wei-Chen Lin (CCCP)
• Jie Jiang (CCCP)
• Xiao Yan Chew (PNU)
• Wan-il Park (JBNU)
• Miok Park (IBS-CTPU)
• Gansukh Tumurtushaa (Jeju National U.)
• Maria Mylova ( Ewha Womans U.) 
• Perseas Christodoulidis (Ewha Womans U.)
• Youngjoon Kwon (Yonsei U.)
• Chang Sub Shin (Chungnam National U.)
• Eung Jin Chun (KIAS)
• Myeonghun Park (Seoul Tech.)
• Hyun Min Lee (CAU)
• Jae Sik Lee (Chonnam National U.)
• Seongchan Park (Yonsei U.)
• C. J. David Lin (NYCU)
• Seodong Shin (JBNU)
• Seung J. Lee (Korea U.)
• Sunghoon Jung (SNU)
• Kiwoon Choi (IBS-CTPU)
• Kimyeong Lee (KIAS)
• Ki-Young Choi (SKKU)

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Organizing Committee

• Kiwoon Choi (IBS-CTPU)
• Sanghyeon Chang (IBS-CTPU)
• Sang Hui Im (IBS-CTPU)
• Deog Ki Hong (PNU), Chair
• Kwang Sik Jeong (PNU)
• Jong-Wan Lee (PNU)
• Dong-han Yeom (PNU)
 
 

For any information or assistance, please contact:

♦ Sang Hui Im
   imsanghui@ibs.re.kr

Wednesday, 7 December

13:30 → 14:00 Registration & Welcome

14:00 → 15:20 Talks: (30+10) min X 2 (Chair: Deog Ki Hong)

14:00 Light axions in KKLT axiverse

Speaker: Kiwoon Choi (IBS-CTPU)

14:40 On Higher Dimensional Quantum Field Theory

Speaker: Kimyeong Lee (KIAS)

IBS-PNU Workshop2022.pdf

15:20 → 16:00 Coffee break

16:00 → 18:10 Talks: (30+10) min + (25+5) min X 3 (Chair: Stephen Lonsdale)

16:00 Signatures of Quantum Superpositions of Black Holes

Speaker: Robert B. Mann (U. of Waterloo)

SuperposeBH-JGRG31-2022.pptx

16:40 Exploring extended Higgs sectors via pair production at the LHC

Speaker: Thomas Flacke (KIAS)

Flacke2212Busan.pdf

17:10 Think EFT! Applications of effective field theory to cosmology

Speaker: Maria Mylova (Ewha Womans U.)

Maria_Mylova_Pusan_2022.pptx

17:40 Rapid turns in multi-field inflation: restored predictivity and resonant PBH production

Speaker: Perseas Christodoulidis (Ewha Womans U.)

Christodoulidis_Busan_talk.pdf

Thursday, 8 December

09:30 → 10:50 Talks: (30+10) min X 2 (Chair: Sang Hui Im)

09:30 The cold and light dark matter

Speaker: Ki-Young Choi (Sungkyunkwan U.)

10:10 Axion quality problem and its solution

Speaker: Seongchan Park (Yonsei U.)

scpark.pdf

10:50 → 11:20 Coffee break

11:20 → 12:00 Talks: (30+10) min (Chair: Sang Hui Im)

11:20 De Sitter self-organized criticality for the weak scale

Speaker: Sunghoon Jung (Seoul National U.)

12:00 → 14:00 Lunch

14:00 → 15:20 Talks: (30+10) min X 2 (Chair: Sunghoon Jung)

14:00 Bosonic dark matter condensed by thermal fermions

Speaker: Eung Jin Chun (KIAS)

EJC-221208-Busan-CoherentDM.pdf

14:40 Dark gauge boson emission from supernova pions

Speaker: Chang Sub SHIN (Chungnam National U.)

20221208_IBS-PNU_ChangSubShin.pdf

15:20 → 16:00 Coffee break

16:00 → 18:00 Talks: (30+10) min X 3 (Chair: Thomas Flacke)

16:00 Higgstrahlung, dark photons, and invisible particles at Belle & Belle II

Speaker: Youngjoon Kwon (Yonsei U.)

Belle_PNU-IBS_Y.Kwon.pdf

16:40 Quantum Computing for High Energy Collider

Speaker: Myeonghun Park (Seoultech)

PARC.pdf

17:20 Cosmology of gauged (B-L) SUSY models

Speaker: Wan-il Park (Jeonbuk National U.)

Friday, 9 December

09:30 → 10:50 Talks: (30+10) min X 2 (Chair: Jong-Wan Lee)

09:30 Pion light-cone distribution amplitude from a heavy-quark OPE

Speaker: C.-J. Daivd Lin (National Yang Ming Chiao Tung U.)

10:10 Perspectives on understanding the substructure of multiquark hadrons in lattice QCD

Speaker: Anthony Francis (National Yang Ming Chiao Tung U.)

afrancis-ibspnu.pdf

10:50 → 11:20 Coffee break

11:20 → 12:00 Talks: (30+10) min (Chair: Jong-Wan Lee)

11:20 Continuum Dark Matter

Speaker: Seung J. Lee (Korea U.)

12:00 → 13:40 Lunch

13:40 → 15:00 Talks: (30+10) min X 2 (Chair: Chang Sub SHIN)

13:40 Cosmic String Simulation

Speaker: Minho Son (KAIST)

14:20 Manifesting hidden dynamics of a sub-component dark matter

Speaker: Seodong Shin (Jeonbuk National U.)

Busan2022.pdf

15:00 → 15:30 Coffee break

15:30 → 18:05 Talks: (30+10) min X 2 + 15 min X 5 (Chair: Seung J. Lee)

15:30 On the mass spectrum of heavy Higgs bosons in 2HDM in the light of the CDF W-mass anomaly

Speaker: Jae Sik Lee (Chonnam National U.)

ibs_pnu2022_JSLEE_N.pdf

16:10 Extra gauge symmetries for lepton flavor with vector-like leptons

Speaker: Hyun Min Lee (Chung Ang U.)

PNU2022-hmlee.pdf

16:50 Chimera baryon spectrum in a Sp(4) lattice gauge theory

Chimera baryons are exotic objects playing the role of top partner in top partial compositeness among composite Higgs models. In the Sp(4) gauge theory with two fundamental and three antisymmetric Dirac fermions, they are composed of two fundamental and one antisymmetric fermion constituents. We present our preliminary results of Λ: (J, R) = (1/2, 5), Σ: (J, R) = (1/2, 10) and Σ∗: (J, R) = (3/2, 10) chimera baryons in the quenched approximation. The fermion mass dependance of chimera baryon masses and their hierarchy will be discussed. This exploratory study will provide a guidance of our future investigations with fully dynamical lattice simulations.

Speaker: Ho Hsiao (National Yang Ming Chiao Tung U)

17:05 Primordial Black Holes and Gravitational Waves from the Tachyonic Instability in Higgs-R^2 Inflation

The running of the Higgs self coupling may lead to numerous phenomena in early universe cosmology. In this talk I introduce a scenario where the Higgs running induces turns in the trajectory passing a region with tachyonic mass, leading to a temporal tachyonic growth in the curvature power spectrum. This effect induced by the Higgs leaves phenomena in the form of primordial black holes and stochastic gravitational waves, where proposed GW observatories will be able to probe in the near future.

Speaker: Dhong Yeon Cheong (Yonsei U.)

IBS_PNU_DYCheong.pdf

17:20 FIMP dark matter from a hidden effective supersymmetric theory

In this study, we present a dark matter model relying on hidden supersymmetric sectors such that dark matter particles are decoupled from the SM. We will consider dark matter as massive bound states of gluons and gluinos called glueballs and gluinoballs. We will discuss the possibility to produce such dark matter particles with a freeze-in mechanism.

Speaker: Wanda Isnard (Yonsei U.)

17:35 Cosmological PBH production during a 1st order PT

Speaker: TaeHun Kim (Seoul National U.)

17:50 Pseudo-Nambu-Goldstone inflation with twin waterfalls

We consider a model for pseudo-Nambu-Goldstone inflation, in which twin waterfall fields ensure a graceful exit from inflation. Adding a Z_2 symmetry for the waterfall and the inflation fields ensures the flatness of the inflationary potential, protecting it from large quantum corrections from the waterfall couplings.
We study the initial conditions required for successful inflation and perturbative reheating from the decay of the waterfalls through a Z2 invariant Higgs portal.
Finally, the twin fields coupling to the inflaton can be microscopically explained in the context of dark QCD with light and heavy quarks.

Speaker: Adriana Guerrero Menkara (Chung Ang U.)

Adriana_IBS_PNU_workshop.pdf

19:00 → 21:00 Free discussion (Chairs : Deog Ki Hong and Kwang Sik Jeong)

Saturday, 10 December

09:30 → 11:00 Talks: (25+5) min X 3 (Chair: Dong-han Yeom)

09:30 Rectifying No-Hair Theorems in Gauss-Bonnet Theory

Speaker: Miok Park (IBS-CTPU)

RectifyingNoHair.pdf

10:00 Dynamical analysis in 4D Einstein-Gauss-Bonnet gravity

Speaker: Gansukh Tumurtushaa (Jeju National U.)

GansukhT.pdf

10:30 Trouble with geodesics in black-to-white hole bouncing scenarios

Speaker: Wei-Chen Lin (CCCP, Pusan National U.)

IBS-PNU_jointWorkshop_WCL.pptx

11:00 → 11:30 Coffee break

11:30 → 12:30 Talks: (25+5) min X 2 (Chair: Dong-han Yeom)

11:30 Beating the Lyth bound with parametric resonance during inflation

Speaker: Jie Jiang (Pusan National U.)

2022.12.10, IBS-PNU_Jie Jiang.pdf

12:00 Scalar Hairy Black Holes with Asymmetric Potential

Speaker: Xiao Yan Chew (Pusan National U.)

12:30 → 12:45 Break

12:45 → 13:45 Free discussion (Chair: Sang Hui Im and Kwang Sik Jeong)

13:45 → 14:00 Closing