2025 CAU-IBS Beyond the Standard Model Workshop

Session

DM

17 Feb 2025, 09:30

Chung-Ang University

1. Astrophysical Probes of Dark Matter

Hai-Bo Yu (University of California Riverside)

17/02/2025, 09:30

2. Connecting the baryons to the dark matter of the Universe

Alejandro Ibarra (Technical University of Munich)

17/02/2025, 11:00

3. Status of Boosted Dark Matter

Prof. Jong-Chul Park (Chungnam National University (KR))

17/02/2025, 11:40

19. Light Dark Matter: showcases from cosmology, astrophysics and experiment

Josef Pradler (University of Vienna & Austrian Academy of Sciences (AT))

19/02/2025, 09:30

31. Heavy dark matter and the evolution of the early universe

Chang Sub Shin (Institute for Basic Science)

20/02/2025, 14:00

32. Probing heavy dark matter with red giants

Dr Minxi He

20/02/2025, 14:40

Astrophysical objects provide an alternative way to probe the properties of dark matter. As dark matter particles transit a star, they can be captured by losing energy through scattering with the nuclei in the star. The accumulation of dark matter particles and their interaction with the nuclei can change the evolution of the star. We focus on the red giants which are in the late phase of...

21. Dark Photons can Prevent Core-Collapse Supernova Explosions

Dr Seokhoon Yun (IBS-CTPU)

20/02/2025, 15:00

During the accretion phase of a core-collapse supernova (SN), dark-photon (DP) cooling can be largest in the gain layer below the stalled shock wave. In this way, it could counter-act the usual shock rejuvenation by neutrino energy deposition and thus prevent the explosion. This peculiar energy-loss profile derives from the resonant nature of DP production. The largest cooling and thus...

41. A few topics in dark matter physics with RHN portals

Prof. Pyungwon Ko (KIAS (Korea Institute for Advanced Study))

21/02/2025, 14:00

44. Dark gauge-mediated supersymmetry breaking with a massless dark photon

Yechan Kim (KAIST)

21/02/2025, 14:40

The kinetic mixing with dark U(1) gauge can mediate the supersymmetry breaking with significant distortions of the mass spectrum and distinct phenomenology. This talk is based on our recent paper (arXiv: 2412.17777).

48. Heavy Dark Photon Cosmological and Astrophysical Bounds revised

Jaeyoung Park

21/02/2025, 15:00

37. Vector dark matteer at low reheat temperature Including decay

Sarif Khan (Goettingen University)

21/02/2025, 15:50

9. Indirect dark matter searches with the CTAO telescope

Lucca Radicce Justino

21/02/2025, 16:20

The dark matter problem is one of the most elusive problems of modern physics and several extensions of the Standard Model have been proposed to address this puzzle. One of the relevant hypotheses is known as "Weakly Interacting Massive Particles": massive particles in the GeV-TeV scale with a weak coupling to the SM sector. One of the detection approaches for WIMPs is the indirect detection...

45. Late-time Cosmology without Dark Sector but with Closed String Massless Sector

Dr Hocheol Lee (Sogang Univ)

21/02/2025, 16:40

We explore the possibility of solving the dark energy and the coincidence problems by postulating the massless sector of closed strings. This sector constitutes the gravitational multiplet of string theory and, when applied to four-dimensional cosmology, predicts that \textit{the expansion of an open Universe defined in string frame is readily accelerating}. We confront the prediction with the...

43. Kinetic mixing in SO(10), gravitational waves and PTA data

Dr RINKU MAJI (Center for Theoretical Physics of the Universe, Institute for Basic Science)

We discuss an SO(10) model where a dimension five operator induces kinetic mixing between the abelian subgroups at the unification scale. We discuss gauge coupling unification and proton decay in this model, as well as the appearance of superheavy quasistable strings, which can explain the PTA data.

42. Self-interacting dark matter from simulation and astrophysics

Sambo Sarkar (Indian Institute of Technology Kharagpur)

In an era characterized by a wide range of astrophysical and cosmological observations, the synergy of data with sophisticated simulations has enabled us to probe interesting phenomenological paradigms of particulate dark matter (DM). Self-scattering of particulate DM within the dark sector can contribute to the thermalization of the central region of a galactic halo. The self-interaction...