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2025 CAU-IBS Beyond the Standard Model Workshop

17–21 Feb 2025
Chung-Ang University
Asia/Seoul timezone

Contact: Prof. Hyun Min Lee

Contribution List

49 out of 49 displayed
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  1. 1. Astrophysical Probes of Dark Matter
    Hai-Bo Yu (University of California Riverside)
    17/02/2025, 09:30
    DM
  2. 2. Connecting the baryons to the dark matter of the Universe
    Alejandro Ibarra (Technical University of Munich)
    17/02/2025, 11:00
    DM
  3. 3. Status of Boosted Dark Matter
    Prof. Jong-Chul Park (Chungnam National University (KR))
    17/02/2025, 11:40
    DM
  4. 4. Recent research results of Center for Underground Physics
    Prof. Yeongduk Kim (Institute for Basic Science (IBS), South Korea)
    17/02/2025, 14:00
  5. 5. Searching for Neutrinoless double beta decay with PandaX
    Prof. Ke Han (Shanghai Jiao Tong University)
    17/02/2025, 14:40
  6. 6. Phenomenology of Dirac neutrino EFT
    Eung Jin Chun (Korea Institute for Advanced Study)
    17/02/2025, 15:50
  7. 7. Reactor antineutrinos through the neutrino inelastic scattering of 13C
    Prof. Seodong Shin (Jeonbuk National University)
    17/02/2025, 16:30
  8. 8. New physics decaying into metastable particles: impact on cosmic neutrinos
    Dr Kensuke Akita (Institute for Basic Science, Center for Theoretical Physics of the Universe)
    17/02/2025, 17:00
  9. 46. Dark matter from simulations and astrophysics
    Dr Sambo Sarkar (Jeonbuk National University)
    17/02/2025, 17:20

    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...

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  10. 10. Generalized Symmetries in Particle Physics
    Nathaniel Craig (UCSB)
    18/02/2025, 09:30
  11. 11. Gravitational Wave with Domain Wall Dominance
    Prof. Sungwoo Hong (KAIST)
    18/02/2025, 11:00
  12. 12. Pseudo NG bosons from finite modular symmetry
    Dr Junichiro KAWAMURA (Institute for Basic Science, Keio University)
    18/02/2025, 11:40

    Pseudo Nambu-Goldstone (pNG) bosons can play important roles in particle physics, such as being a light dark matter (DM), the QCD axion to solve the strong CP problem, and so on. I point out that such a pNG boson is naturally realized by the finite modular symmetry, which may originate from the geometry of extra dimensions in the superstring models. An accidental global U(1) symmetry...

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  13. 13. Axion search - where are we?
    SungWoo Youn (IBS-CAP)
    18/02/2025, 14:00
  14. 14. Aspects of axion dark matter
    deog-ki hong (pusan national university)
    18/02/2025, 14:40
  15. 15. Searches for Power-law Warped Extra Dimensions
    Dr Sang Hui Im (IBS CTPU)
    18/02/2025, 15:10
  16. 17. New physics searches with unconventional signatures at the LHC
    Chang-Seong Moon (Kyungpook National University (KR))
    18/02/2025, 16:10
  17. 20. Celestial bodies as WIMP detectors
    Stefano Scopel (Sogang University)
    18/02/2025, 16:50

    Celestial bodies can cathalize WIMP annihilations, providing a promising way to detect them. Moreover, celestial bodies and direct detection probe the same WIMP-nucleus scattering process in a complementary way, allowing to remove the uncertainty on the velocity distribution. Thanks to their gravitational acceleration celestial bodies also allow to extend the experimental sensitivity to a...

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  18. 49. Revisiting the decoupling limit of the Georgi-Machacek model with a scalar singlet
    Dr ROJALIN PADHAN (Chung-Ang University)
    18/02/2025, 17:20
  19. 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
    DM
  20. 16. Higgs and BSM at FCC-ee
    Tevong You (King's College London)
    19/02/2025, 11:00
  21. 18. Hybrid quantum-classical approach for combinatorial problems at hadron colliders
    Prof. Myeonghun Park (Seoultech)
    19/02/2025, 11:40
  22. 22. Primordial black holes from an interrupted phase transition
    Dr Tae Hyun Jung (IBS-CTPU)
    19/02/2025, 14:00
  23. 23. Gravitational Waves from a First-Order Phase Transition of the Inflaton
    Joern Kersten (University of Bergen)
    19/02/2025, 14:30
  24. 24. Bubble wall dynamics at the electroweak phase transition
    Dr Carlo Branchina (Chung-Ang University)
    19/02/2025, 15:00

    The early Universe provides a unique environment to explore fundamental physics, offering extreme conditions that allow theoretical models to be tested, and opening the possibility to probe particle physics at energy scales far beyond the reach of current and future accelerators. In this respect, among the various cosmological phenomena of interest, first-order phase transitions play a...

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  25. 25. Recent Highlights from Belle II and Belle Physics
    Youngjoon Kwon
    19/02/2025, 16:00
  26. 26. Effects of NSI on neutrino oscillation
    Pouya Bakhti (JBNU)
    19/02/2025, 16:40

    In this talk, I will explore Non-Standard Neutrino Interactions (NSIs) and their effects on neutrino oscillation parameters. I will discuss the LMA-Dark solution and the degeneracies induced by NSIs in the measurement of (\delta_{CP}). Additionally, I will examine the impact of NSIs on solar and atmospheric neutrinos.

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  27. 27. Radiative corrections to the QCD θ parameter at the two-loop level
    Tatsuya Banno (Nogoya Univ)
    19/02/2025, 17:00

    Radiative corrections to the QCD θ parameter have been evaluated in terms of the imaginary part of the radiative quark mass phase, e.g. using the Fujikawa method. We have evaluated the radiative correction to the QCD θ at the 2-loop level by direct calculation of the Feynman diagram using a toy model with CP-violating Yukawa coupling. We show that the diagrammatic method is consistent with the...

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  28. 28. Dark Matter from Inflation and Reheating
    Prof. Marcos A. Garcia Garcia (Instituto de Fisica, UNAM)
    20/02/2025, 09:30
  29. 29. Probing Dark Matter with Gravitational-Wave Detectors in Space
    Dr Yong Tang (University of Chinese Academy of Sciences)
    20/02/2025, 11:00
  30. 30. Quantum aspects of inflationary gravitational waves
    Jinn-Ouk Gong
    20/02/2025, 11:40
  31. 31. Heavy dark matter and the evolution of the early universe
    Chang Sub Shin (Institute for Basic Science)
    20/02/2025, 14:00
    DM
  32. 32. Probing heavy dark matter with red giants
    Dr Minxi He
    20/02/2025, 14:40
    DM

    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...

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  33. 21. Dark Photons can Prevent Core-Collapse Supernova Explosions
    Dr Seokhoon Yun (IBS-CTPU)
    20/02/2025, 15:00
    DM

    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...

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  34. 34. Gravitational production in the early Universe
    Yann Mambrini
    20/02/2025, 16:00
  35. 33. Reconciling cosmological tensions with inelastic dark matter and dark radiation
    SATYABRATA MAHAPATRA (Sungkyunkwan University)
    20/02/2025, 16:40

    In this talk I will introduce a novel particle physics framework addressing multiple cosmological tensions, including discrepancies in the Hubble parameter, S8, and Lyman-\alpha forest data. This model, SIDR+z_t (Self-Interacting Dark Radiation with transition redshift), features an inelastic dark matter (IDM) scenario coupled with dark radiation under a dark gauge symmetry. The model...

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  36. 35. Is leptogenesis during gravitational reheating flavourful?
    ARGHYAJIT DATTA
    20/02/2025, 17:00
  37. 47. Modern Computational Approaches to Early Universe Modeling
    Jong-Hyun Yoon
    20/02/2025, 17:20

    In physics, while analytical calculations remain appealing, there are situations where the use of computers becomes indispensable. A straightforward example is the three-body problem, where even the interactions of just three bodies are challenging to solve analytically. This necessity is similarly evident in studies of the early universe. Understanding the dynamics of the inflaton requires...

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  38. 38. Cosmological Collider Physics
    Masahide Yamaguchi (Tokyo Institute of Technology)
    21/02/2025, 09:30
  39. 39. Quintessence Inflaton
    Prof. Seong Chan Park (Yonsei University)
    21/02/2025, 11:00
  40. 40. Model building aspects of cosmological collider
    Shuntaro AOKI
    21/02/2025, 11:40

    The cosmological collider program, which aims to extract direct information about heavy particles during inflation via primordial non-Gaussianity, has attracted attention as it offers a window into high-energy physics beyond the reach of terrestrial experiments. However, analyses based on concrete particle physics models remain limited, and it is still unclear under what conditions a large...

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  41. 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
    DM
  42. 44. Dark gauge-mediated supersymmetry breaking with a massless dark photon
    Yechan Kim (KAIST)
    21/02/2025, 14:40
    DM

    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).

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  43. 48. Heavy Dark Photon Cosmological and Astrophysical Bounds revised
    Jaeyoung Park
    21/02/2025, 15:00
    DM
  44. 37. Vector dark matteer at low reheat temperature Including decay
    Sarif Khan (Goettingen University)
    21/02/2025, 15:50
    DM
  45. 9. Indirect dark matter searches with the CTAO telescope
    Lucca Radicce Justino
    21/02/2025, 16:20
    DM

    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...

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  46. 45. Late-time Cosmology without Dark Sector but with Closed String Massless Sector
    Dr Hocheol Lee (Sogang Univ)
    21/02/2025, 16:40
    DM

    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...

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  47. 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)
    DM

    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.

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  48. 42. Self-interacting dark matter from simulation and astrophysics
    Sambo Sarkar (Indian Institute of Technology Kharagpur)
    DM

    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...

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  49. 36. UV Freeze-In Dark Matter in General Reheating Scenarios
    Dr Kuldeep Deka (New York University Abu Dhabi)

    The dynamics of cosmic reheating, that is, on how the energy stored in the inflaton is transferred to the standard model (SM) thermal bath, is largely unknown. In this work, we show that the phenomenology of the nonbaryonic dark matter (DM) ultraviolet freeze-in production strongly depends on the dynamics of the cosmic-reheating era. Using a general parametrization for the Hubble expansion...

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