2021 Chung-Ang University Beyond the Standard Model Workshop
from
Monday, 1 February 2021 (09:00)
to
Wednesday, 3 February 2021 (18:30)
Monday, 1 February 2021
09:30
Superconducting Axion String and Cosmic Background Axion
-
Hitoshi Murayama
(
University of California Berkeley (US)
)
Superconducting Axion String and Cosmic Background Axion
Hitoshi Murayama
(
University of California Berkeley (US)
)
09:30 - 10:10
10:10
Hierarchical axion couplings from axion landscape
-
Kiwoon Choi
Hierarchical axion couplings from axion landscape
Kiwoon Choi
10:10 - 10:40
10:40
Coffee break
Coffee break
10:40 - 11:10
11:10
SU(2) Anomaly for DE Source
-
Jihn E. Kim
(
Kyung Hee University
)
SU(2) Anomaly for DE Source
Jihn E. Kim
(
Kyung Hee University
)
11:10 - 11:40
I show a possibility that a quintessential axion (with its breaking by the weak SU(2) gauge anomaly) can be the source of dark energy. However, I cannot show why the minimum of the potential is at the zero value for the cosmological constant.
11:40
Axion-driven hybrid inflation over a barrier
-
Kwang Sik Jeong
Axion-driven hybrid inflation over a barrier
Kwang Sik Jeong
11:40 - 12:10
12:10
Lunch & Discussion
Lunch & Discussion
12:10 - 14:00
14:00
Extreme Testing of Self-Interacting Dark Matter
-
Hai-Bo Yu
(
University of California, Riverside
)
Extreme Testing of Self-Interacting Dark Matter
Hai-Bo Yu
(
University of California, Riverside
)
14:00 - 14:40
14:40
Cooling of young neutron stars and dark gauge bosons
-
Deog Ki Hong
(
Pusan National University (KR)
)
Cooling of young neutron stars and dark gauge bosons
Deog Ki Hong
(
Pusan National University (KR)
)
14:40 - 15:10
The standard cooling scenario in the presence of nucleon superfluidity fits rather well to the observation of the neutron stars. It implies that the stellar cooling arguments could place a stringent constraint on the properties of novel particles. We study in particular the cooling rate induced by dark gauge bosons for very young neutron stars: remnants of Cassiopeia A and SN1987A. The cooling is dominantly contributed either by the nucleon pair breaking and formation in the core or by the electron bremsstrahlung in the crust, depending on the age of the stars and the form of the couplings. We compute how much the cooling curve of the young neutron stars could be modified by the extra dark gauge boson emission and obtain the bound for the dark gauge boson.
15:10
Dark Axion Portal
-
Hye-Sung Lee
(
KAIST
)
Dark Axion Portal
Hye-Sung Lee
(
KAIST
)
15:10 - 15:40
15:40
Coffee break
Coffee break
15:40 - 16:00
16:00
Hunting for New Physics in Neutrino Oscillation Experiments
-
Joachim Kopp
(
CERN
)
Hunting for New Physics in Neutrino Oscillation Experiments
Joachim Kopp
(
CERN
)
16:00 - 16:40
The goal of this phenomenology-oriented talk is to highlight some of the manifold ways in which neutrino oscillation experiments contribute to the global search for physics beyond the Standard Model. We will in particular discuss searches for sterile neutrinos (for which there exist some tantalizing but controversial hints), searches for new interactions in an effective field theory context, and searches for dark matter. Moreover, we will highlight the tremendous potential of neutrino "Near Detectors" for probing light and weakly interacting new particles. Throughout the talk, we will also highlight the Standard Model challenges that current and future neutrino oscillation experiments are facing, in particular with regard to precision prediction for neutrino-nucleus interactions.
16:40
Neutrino oscillations in a medium
-
Eung Jin Chun
(
Korea Institute for Advanced Study
)
Neutrino oscillations in a medium
Eung Jin Chun
(
Korea Institute for Advanced Study
)
16:40 - 17:10
17:10
New mechanism for baryon asymmetry and connection with dark matter
-
Sin Kyu Kang
(
Seoul-Tech
)
New mechanism for baryon asymmetry and connection with dark matter
Sin Kyu Kang
(
Seoul-Tech
)
17:10 - 17:40
Tuesday, 2 February 2021
09:30
Fun with axions and axion strings
-
Anson Hook
(
University of Maryland
)
Fun with axions and axion strings
Anson Hook
(
University of Maryland
)
09:30 - 10:10
10:10
Exploring the Universe with Dark Light Scalars
-
Chang Sub Shin
(
Institute for Basic Science
)
Exploring the Universe with Dark Light Scalars
Chang Sub Shin
(
Institute for Basic Science
)
10:10 - 10:40
10:40
Coffee break
Coffee break
10:40 - 11:00
11:00
Primordial Black Hole Domination: Dark Matter, Dark Radiation, and Gravitational Waves
-
Gordan Krnjaic
(
Fermilab
)
Primordial Black Hole Domination: Dark Matter, Dark Radiation, and Gravitational Waves
Gordan Krnjaic
(
Fermilab
)
11:00 - 11:40
If even a relatively small number of primordial black holes (PBH) were created in the early universe, they will constitute an increasingly large fraction of the total energy density as space expands. It is thus well-motivated to consider scenarios in which the early universe was dominated by short lived PBH (M < 10^9 grams, t < 1 sec) whose Hawking radiation produces both the Standard Model radiation bath and other exotic gravitationally coupled species. Within this context, we consider Hawking radiation as a mechanism to produce dark radiation and dark matter. In a PBH dominated era, we find that Schwarzschild Hawking evaporation produces dark radiation at a level ΔNeff∼0.03−0.2 for each light and decoupled species of spin 0, 1/2, or 1. During this era, dark matter could also originate as Hawking radiation, although such dark matter candidates must be very heavy (m >10^11 GeV) to avoid overproduction. Furthermore, if the PBH undergo mergers before evaporating, the subsequent population acquires nonzero spin, so the resulting Kerr Hawking radiation efficiently produces gravitons whose contribution to ΔNeff is within the reach of future CMB experiments; such mergers also predict a characteristic spectrum of primordial gravitational waves at high frequencies correlated with the progenitor PBH mass.
11:40
Small-scale shear: Diffuse subhalos with gravitational waves
-
Sunghoon Jung
(
Seoul National University
)
Small-scale shear: Diffuse subhalos with gravitational waves
Sunghoon Jung
(
Seoul National University
)
11:40 - 12:10
12:10
Lunch & Discussion
Lunch & Discussion
12:10 - 14:00
14:00
Double Higgs production at the HL-LHC
-
K.C. Kong
(
University of Kansas
)
Double Higgs production at the HL-LHC
K.C. Kong
(
University of Kansas
)
14:00 - 14:40
14:40
Search for BSM Higgs at the LHC
-
Un-Ki Yang
Search for BSM Higgs at the LHC
Un-Ki Yang
14:40 - 15:10
15:10
Gapped Continuum Dark Matter
-
Seung J. Lee
(
Korea University
)
Gapped Continuum Dark Matter
Seung J. Lee
(
Korea University
)
15:10 - 15:40
15:40
Coffee break
Coffee break
15:40 - 16:00
16:00
Higgs in the Swampland
-
Nathaniel Craig
(
UC Santa Barbara
)
Higgs in the Swampland
Nathaniel Craig
(
UC Santa Barbara
)
16:00 - 16:40
16:40
Invertible LHC Simulations with Generative Networks
-
Tilman Plehn
Invertible LHC Simulations with Generative Networks
Tilman Plehn
16:40 - 17:20
17:20
The weak scale as a trigger
-
Hyung Do Kim
(
Seoul National University
)
The weak scale as a trigger
Hyung Do Kim
(
Seoul National University
)
17:20 - 17:50
Wednesday, 3 February 2021
09:30
EFTs and Inflation
-
Clifford Peter Burgess
(
McMaster University (CA)
)
EFTs and Inflation
Clifford Peter Burgess
(
McMaster University (CA)
)
09:30 - 10:10
10:10
Leptogenesis in Higgs inflation
-
Seong Chan Park
(
Yonsei University
)
Leptogenesis in Higgs inflation
Seong Chan Park
(
Yonsei University
)
10:10 - 10:40
10:40
Coffee break
Coffee break
10:40 - 11:00
11:00
Cosmological Particle Production and Pairwise Hotspots on the CMB
-
Yuhsin Tsai
(
Fermilab/Cornell
)
Cosmological Particle Production and Pairwise Hotspots on the CMB
Yuhsin Tsai
(
Fermilab/Cornell
)
11:00 - 11:40
11:40
Quantum aspects of inflationary GWs
-
Jinn-Ouk Gong
Quantum aspects of inflationary GWs
Jinn-Ouk Gong
11:40 - 12:10
12:10
Lunch & Discussion
Lunch & Discussion
12:10 - 14:00
14:00
Inelastic DM models with Dark Higgs boson
-
Pyungwon Ko
(
Korea Inst. for Advanced Study (KIAS)
)
Inelastic DM models with Dark Higgs boson
Pyungwon Ko
(
Korea Inst. for Advanced Study (KIAS)
)
14:00 - 14:40
14:40
Detecting Super-Light Dark Matter with Graphene Josephson Junction
-
Jong-Chul Park
Detecting Super-Light Dark Matter with Graphene Josephson Junction
Jong-Chul Park
14:40 - 15:10
15:10
Dark matter particles and neutrinos with NaI(Tl) crystal detectors
-
Chang Hyon Ha
(
Chung-Ang University
)
Dark matter particles and neutrinos with NaI(Tl) crystal detectors
Chang Hyon Ha
(
Chung-Ang University
)
15:10 - 15:40
15:40
Coffee break
Coffee break
15:40 - 16:00
16:00
Spontaneous breaking of Weyl quadratic gravity to Einstein action and inflation
-
Dumitru Ghilencea
(
IFIN-HH (RO)
)
Spontaneous breaking of Weyl quadratic gravity to Einstein action and inflation
Dumitru Ghilencea
(
IFIN-HH (RO)
)
16:00 - 16:40
16:40
Toward waveform modelings for gravitational waves from black hole encountering
-
Gungwon Kang
(
KISTI
)
Toward waveform modelings for gravitational waves from black hole encountering
Gungwon Kang
(
KISTI
)
16:40 - 17:10