Yonsei university Cosmology and High Energy physics workshop (YuCHE 2019)

Contribution List

1. arrival / reception

25/02/2019, 17:00

3. Opening: Welcome & Intro.

Prof. Y.J Kwon

26/02/2019, 09:30

• Welcoming
• Intro to Yonsei U. and Yonsei Physics
• HEP at Yonsei
• Selected recent results from Belle

4. Studying Gauginos in Supersymmetric Model at Future 100TeV pp Collider

Prof. T Moroi

26/02/2019, 10:00

I discuss a possibility of studying the properties (in particular, masses) of gauginos at future 100TeV pp collider, paying particular attention to the model in which gauginos are withing the kinematical reach while the sfermions and Higgsinos are too heavy to be produced at the collider. I first explain that such a mass spectrum can be naturally realized in a class of model called minimal...

5. Flavourful axion phenomenology

Prof. E.J Chun

26/02/2019, 11:00

We provide a comprehensive discussion of the phenomenology of flavourful axions. Presenting the general flavourful axion-fermion and axion-photon coupling, we calculate flavour-violating decays of mesons and leptons involving a flavourful axion. We also derive the mixing between axions and mesons which affects the meson oscillation probability and mass difference, and also contributes to meson...

6. Constraining DM-neutrino interaction with IceCube-170922A

Prof. K.Y Choi

26/02/2019, 11:30

7. Flaxion, Axion and Neutron Star.

Prof. K Hamaguchi

26/02/2019, 14:00

8. Energetic ALPs From Decaying Dark Matter

Prof. K.J Bae

26/02/2019, 15:00

9. Unitary inflaton as dark matter and radiation

Prof. H.M Lee

26/02/2019, 16:00

10. Dark Matter and WIMPy Baryogenesis in Scotogenic Model

Prof. S.K Kang

26/02/2019, 16:30

11. Murdering the 4th generation 2HDM

Prof. J.H Song

26/02/2019, 17:00

19. A model of light dark baryons and dark radiation

Prof. D.K Hong

26/02/2019, 17:30

We propose a model for dark matter and dark radiation, based on a strongly-coupled dark SU(5) gauge theory with fundamental and decuplet dark-quarks. The model supports light dark-baryons, respecting the chiral symmetry, which are electrically neutral but have electromagnetic form factors, and also a light dark-axion. Since the coupling of dark baryons to the standard model particles is...

20. Pictures

26/02/2019, 20:00

12. Light Fermionic WIMP Dark Matter with Light Scalar Mediator

Prof. S Matsumoto

27/02/2019, 10:00

A light fermionic weakly interacting massive particle (WIMP) dark matter is investigated by studying its minimal renormalizable model, where it requires a scalar mediator to have an interaction between the WIMP and standard model particles. We perform a comprehensive likelihood analysis of the model involving all robust constraints obtained so far and that will be obtained in the near future...

17. Precision Higgs at the LHC

Prof. M.H Park

27/02/2019, 11:00

14. Probing Dark Matter at LIGO and Beyond

Prof. S.H Jung

27/02/2019, 11:30

What can we learn about Dark Matter frontier with Gravitational-Wave (GW) observations at LIGO and future detectors?

We first introduce a new GW observable — GW Fringe — that allows LIGO alone to already probe compact dark matter. We further show that the dark-matter physics potential of GW observation is significantly widened and increased by augmenting LIGO with mid-frequency detectors. New...

15. Electroweak baryogengesis driven by an axion like particle.

Prof. C.S Shin

27/02/2019, 14:00

An axion-like particle (ALP) offers a new direction in electroweak baryogenesis because the periodic nature enables it to trigger a strong first-order phase transition even if it is weakly coupled to the Higgs sector. This is essentially because the axion periodicity naturally allows the structure of phase transition to be insensitive to the axion decay constant that determines the strength...

16. Boosted Dark Matter and its Search

Prof. J.C Park

27/02/2019, 14:30

Can dark matter be produced and travel with relativistic velocities in the current universe?
We answer this question and provide new detection strategies of such relativistic dark matter.

13. S8

Prof. P Ko

27/02/2019, 15:00

18. Closing

Prof. S.C Park

27/02/2019, 15:30