The 2nd Asian-European-Institutes (AEI) Workshop for BSM and the 10th KIAS Workshop on Particle Physics and Cosmology

Session

Morning Session

14 Nov 2022, 09:00

The Grand Sumorum, Jeju

Conveners

Morning Session

• Eung Jin Chun (Korea Institute for Advanced Study)

Morning Session

• Hyun Min Lee (CAU - Chung-Ang University (KR))

Morning Session

• Shigeki Matsumoto (Kavli IPMU, U. Tokyo)

Morning Session

• Seong Chan Park (Yonsei University)

Morning Session

• Valentin Khoze (IPPP Durham University)

Morning Session

• Satoshi Shirai (Kavli IPMU)

Morning Session

• Frank Krauss (IPPP Durham)

Morning Session

• Jeonghyeon Song (Konkuk University)

Morning Session

• Myeonghun Park (Seoultech)

Morning Session

• Pyungwon Ko (KIAS)

2. QCD instantons at hadron colliders

Valentin Khoze (IPPP)

14/11/2022, 09:00

TBA

3. Models for self-resonant dark matter

Hyun Min Lee (CAU)

14/11/2022, 09:30

We consider a new mechanism for enhancing the self-scattering and
annihilation cross sections for dark matter with multiple components but without a
light mediator. The lighter dark matter component plays a role of the u-channel
pole in the elastic co-scattering for dark matter, leading to a large self-scattering
cross section and a Sommerfeld enhancement for semi-annihilation...

4. TBA

Wan-Il Park (JBNU)

14/11/2022, 10:00

TBA

5. Mediator Decays at Thresholds

Shigeki Matsumoto (Kavli IPMU, U. Tokyo)

14/11/2022, 11:00

We study the decay processes of mediator particles, which are predicted
in the light dark matter scenario, especially for the case in which their masses lie
near the threshold region. We consider a vector mediator particle as an example,
whose mass is around twice the muon or the bottom quark mass. We develop a
method to quantitatively deal with the threshold singularity of the decay...

6. Subfrequency light signals of the dark sector

Hye-Sung Lee (KAIST)

14/11/2022, 11:30

TBA

7. Axion Quality Problem and its solution

Seong Chan Park (Yonsei U)

14/11/2022, 12:00

TBA

23. Precision Collider Phenomenology

Frank Krauss (IPPP)

15/11/2022, 09:00

TBA

24. TBA

Minho Son (KAIST)

15/11/2022, 09:30

TBA

25. cold electroweak baryogenesis through halo collapse

Graham White (IPMU)

15/11/2022, 10:00

I will present a very simple scenario where a Yukawa interaction causes
metastable halos to form in the early Universe. When the halo collapses a fireball
results with a temperature above that of the electroweak symmetry breaking scale.
This fireball is functionally similar to an electroweak bubble, except the inside is
where sphalerons are unsupressed. I then give a concrete scenario...

26. Axion Solar Halos: From Earth and Space

Joshua Eby (Kavli IPMU)

15/11/2022, 11:00

TBA

27. Neutrinos and Non-Invertible Symmetry

Sungwoo Hong (KAIST)

15/11/2022, 11:30

The notion of symmetries has been generalized rather drastically in
recent years. These generalized global symmetries have shown to be extremely
powerful in deepening our understanding of QFT. The appearance and usage of
generalized global symmetries in particle physics are yet to be explored and this
talk will provide one such story. In this talk, I will show that the SM...

28. TBA

Shu Li (TDLI & SJTU)

15/11/2022, 12:00

TBA

8. Anatomy of "Jet Classification using Deep Learning"

Mihoko Nojiri (KEK)

16/11/2022, 09:00

10. Axion dark matter with thermal friction

Sang Hui Im (IBS-CTPU)

16/11/2022, 09:30

Cosmological evolution of the axion field in the early universe might be significantly affected by thermal friction induced by the axion coupling to the thermalized hidden sector. We examine the effects of such a thermal friction on axion dark matter density and its perturbation when the thermal friction dominates over the Hubble friction. We show that in the presence of sizable thermal...

9. DarkSHINE: Dark photon fixed-target search experiment at SHINE facility

Yufeng Wang (TDLI)

16/11/2022, 10:00

TBA

21. Top quarks as a window to new physics

Christoph Englert (University of Glasgow)

16/11/2022, 11:00

22. Leveraging Quantum Annealer to identify event topologies at High energy colliders

Myeonghun Park (Seoultech)

16/11/2022, 11:30

50. W boson mass anomaly and grand unification

Jason Evans (TDLI)

16/11/2022, 12:00

It is known that the recently reported shift of the W boson mass can be
easily explained by an SU(2)L triplet Higgs boson with a zero hypercharge if it
obtains a vacuum expectation value (VEV) of O(1) GeV. Surprisingly, the addition
of a TeV scale complex triplet Higgs boson to the standard model (SM) leads to a
precise unification of the gauge couplings at around 10^{14} GeV. We...

34. On Detection of Axion Dark Matter

Satoshi Shirai (Kavli IPMU)

17/11/2022, 09:00

The axion is one of the most promising dark matter candidates. Since
the axion is a very light particle, its quantum effects are very strong. For example,
the interaction between the axion dark matter and detectors is subject to large
corrections due to coherence effects and stimulated emission effects. In this talk I
will discuss how these quantum effects affect the direct detection of...

35. Imprints of Heavy Inflationary Particles on the Large Scale Structure

Jeong Han Kim (Chungbuk National University)

17/11/2022, 09:30

The early universe had such an extremely high energy density that
supermassive particles could have been produced. When heavy particles are pair
produced during inflation via couplings to the inflaton, the particle mass generates
a non-trivial curvature perturbation in position space. Even if the heavy particles no
longer exist, the modified curvature perturbations are preserved before...

36. SU(3) symmetry and its breaking effects in charm baryon decays

Zhi-Peng Xing (TDLI)

17/11/2022, 10:00

We utilize the flavor SU(3) symmetry analysis on the semi-leptonic
decays of anti-triplet charmed baryons(${\mathrm{\Lambda }}_c^{+},{\mathrm{\Xi }}_c^{+,0}$) to obtain
the results of ${\mathrm{\Xi }}_c$ branching fraction:
$\mathcal{B}({\mathrm{\Xi }}_c^0\to {\mathrm{\Xi }}^{-}{e}^{+}\nu )=4.10\pm 0.46\mathrm{\%}$,
$\mathcal{B}({\mathrm{\Xi }}_c^0\to {\mathrm{\Xi }}^{-}{\mu }^{+}{\nu }_{\mu })=3.98\pm 0.57\mathrm{\%}$ and find a heavy
deviation between the results of a process ${\mathrm{\Xi }}_c^0\to {\mathrm{\Xi }}^{-}{l}^{+}\nu$...

37. Interplay of Higgs Boson, Dark matter and Neutrinos

Priyotosh Bandyopadhyay (Indian Institute of Technology Hyderabad)

17/11/2022, 11:00

We will discuss the various possibilities of beyond Standard Model
scenarios involving Type-I seesaw and Inverse seesaw mechanism. The B-L
gauge extension with a scalar dark matter scenario can have displaced decay
signature while the dark matter freeze-out is via right-handed neutrino pair. The
Type-X 2HDM is motivated to explain the muon (g-2) excess, if associated with the
right-handed...

38. Discrete Goldstone Bosons

Rachel Houtz (IPPP)

17/11/2022, 11:30

In this talk, I will discuss discrete Goldstone bosons
(dGB's), light particles arising from spontaneously broken exact discrete
symmetries. These dGB's are guaranteed to have nonzero masses, while the
associated discrete symmetry protects them from quadratically divergent mass
contributions. The nonzero masses of dGB's arise directly from the discrete
symmetry, without requiring an...

39. TBA

Kyohei Mukaida (KEK)

17/11/2022, 12:00

TBA

44. A Large N expansion for Minimum Bias

Tom Melia (IPMU)

18/11/2022, 09:00

Despite being the overwhelming majority of events produced in hadron or heavy ion collisions, minimum bias events do not enjoy a robust first-principles theoretical description as their dynamics are dominated by low-energy quantum chromodynamics. I will present a novel expansion scheme of the cross section for minimum bias events that exploits an ergodic hypothesis for particles in the events,...

45. Hidden dynamics of a sub-component dark matter

Seodong Shin (JBNU)

18/11/2022, 09:30

In multi-component dark matter scenarios, dynamics of a
sub-component dark matter has been often ignored. In this talk, I will be pointing
out the hidden roles of a sub-component dark matter in the scenarios where the
dominant relics interact with the Standard Model sector only indirectly through the
sub-component. Distinctive cosmological dynamics of a sub-component dark
matter will be...

46. Latest results of PandaX-4T experiment

Ning Zhou (SJTU)

18/11/2022, 10:00

TBA

47. Higgs Balls: Novel Non-Topological Solitons via Thermal Corrections

Lauren Pearce (Penn State University-New Kensington)

18/11/2022, 11:00

Global non-topological solitons (Q-balls) exist when the potential of a
charged scalar field grows slower than quadratically. At zero temperature, this
requires attractive interactions. However, this is not necessary at finite
temperature, as the cubic term ~ T |phi|^3 generically has a negative coefficient.
As a result, non-topological solitons exist at finite temperature in a variety...

48. RGE studies in the two-Higgs-doublet model

Jeonghyeon Song (Konkuk University)

18/11/2022, 11:30

The two-Higgs-doublet model is one of the most studied BSM models.
The famous four types in the normal and inverted Higgs scenarios have different
still-allowed parameter spaces, which satisfy the theoretical requirements and the
experimental constraints at the electroweak scale. The high energy scale behavior
through the renormalization group equation analysis yields the cutoff scale of...

49. The muon g-2 on the lattice QCD

Chulwoo Jung (Brookhaven National Laboratory)

18/11/2022, 12:00

TBA