Darkness on the table: ideas on tabletop experiments for dark matter/exotic particle search

Contribution List

1. Opening Remark

Hong Joo Kim (Kyungpook National University)

8/9/21, 9:20 AM

5. Novel hermetic detector for KAPAE

Hyeoung Woo Park (Kyungpook National University)

8/9/21, 9:30 AM

The KNU Advanced Positronium Annihilation Experiment (KAPAE) explores new physics such as visible and invisible exotic decay on a laboratory scale. The KAPAE phase I aims to improve the sensitivity of CPT violation in the lepton sector using a novel trigger system. Furthermore, the KAPAE phase II has been developed to focus on invisible decay measurement. We will present KAPAE detector...

3. Search for Elementary Magnetic Monopoles in Electron-Positron At Rest

Sehwook Lee (Kyungpook National University)

8/9/21, 10:00 AM

4. Dark matter axion search at IBS-CAPP

Sungwoo Youn (CAPP, IBS)

8/9/21, 10:30 AM

The axion is a hypothetical elementary particle which can address two fundamental questions in modern physics - CP problem in the strong interactions and mystery of dark matter.

The most sensitive searches rely on the haloscope technique that utilizes the axion-photon conversion under a strong magnetic field.

The key elements of experimental setup include a high-field magnet in a...

6. Distinguishing axion models with running axion couplings

Sang Hui Im (CTPU, IBS)

8/9/21, 2:00 PM

We examine the possibility to experimentally distinguish three different classes of axion models, i.e. KSVZ-like, DFSZ-like, and string-theoretic axions by observing a different pattern of low energy couplings to the photons, nucleons and electrons. For this purpose, we study the renormalization group running of axion couplings at leading order. We find that the low energy couplings of...

10. Sterile neutrino dark matter with dipole interaction

Ki Young Choi (SKKU)

8/9/21, 2:30 PM

7. Supernova-scope for the Direct Search of Supernova Axions

Koichi Hamaguchi (University of Tokyo)

8/9/21, 3:00 PM

This talk is based on [arxiv:2008.03924]. If a supernova explosion occurs within a few hundred parsecs from the Earth, a huge number of axions, in addition to neutrinos, may arrive at the Earth. We discuss the prospect of detecting those supernova axions by an axion helioscope. With the help of a pre-supernova neutrino alert system, it is possible to point a helioscope at an exploding...

8. The μ → eγ decay in an EW- scale non-sterile RH neutrino model

Dinh Nguyen Dinh (Institute of Physics)

8/9/21, 3:30 PM

In this report, we briefly introduce an extended model with non-sterile RH neutrino at EW scale by P.Q. Hung. Then the branching ratio of μ → eγ decay will be derived at one-
loop approximation with the participation of W gauge boson, neutral and singly charged Higgs scalars. We set constraints on relevant parameters and predict the sensitivities of the
decay channel with the present and...

9. Light dark matter in cosmological relaxation scenario

Hyungjin Kim (DESY)

8/9/21, 4:00 PM

I will discuss how light dark matter can arise from cosmological relaxation scenarios, which provides an alternative solution to the electroweak hierarchy problem. This dark matter candidate is lighter than eV-scale, and at the same time, couples to the standard model particles in the same way that the Higgs does. I will discuss the related phenomenology.

11. Discussion

8/9/21, 5:00 PM

12. Direct Detection of Dark Energy

Surjeet Rajendran (Johns Hopkins University)

8/10/21, 9:30 AM

If dark energy evolves in time, its dynamical component could be tested in the laboratory. There are two kinds of tests. First, the coherent motion of the dark energy can lead to precession of spins of particles that are coupled to the dark energy. This leads to a dc precession of particle spins and it can be probed in storage ring experiments as well as experiments that search for Lorentz...

13. The Migdal effect in semi-conductors

Simon Knapen (CERN)

8/10/21, 10:00 AM

14. Engineering graphene Josephson junction for sensitive photon detector

Gil-Ho Lee (POSTECH)

8/10/21, 10:30 AM

Sensitive microwave detectors are essential in radioastronomy, dark-matter axion searches and superconducting quantum information science. The conventional strategy to obtain
higher-sensitivity bolometry is the nanofabrication of ever smaller devices to augment the thermal response. However, it is difficult to obtain efficient photon coupling and to maintain
the material properties in a...

15. Detection of Super-light Dark Matter Using Graphene Josephson Junction

Jong-Chul Park (CNU)

8/10/21, 11:00 AM

We propose a new dark matter detection strategy that will enable the search of keV-range super-light dark matter, representing an improvement of the minimum detectable mass by more than three orders of magnitude over the ongoing experiments. This is possible by integrating intimately the target material, π-bond electrons in graphene, into a Josephson junction to achieve a high sensitivity...

16. NaI detector for rare event searches

Hyun Su Lee (CUP, IBS)

8/10/21, 2:00 PM

A NaI is conventional detector with a very long history and are still widely used. In particular, since the DAMA experiment claimed an observation of dark matter with the NaI(Tl) detector, the development of a low background and high scintillation efficiency detectors were widely researched.
In Korea, the COSINE experiment to verify the DAMA experiment by developing a high-purity NaI...

17. A small cryogenic detector for low mass WIMPs search

Hyelim Kim (CUP, IBS)

8/10/21, 2:30 PM

The focusing mass of the present WIMPs (weakly interacting massive particles) search is going down. For the low mass WIMP search, we studied a low threshold cryogenic particle detector using an MMC (Metallic Magnetic Calorimeter) sensor and a pure CaF2 crystal as a particle absorber. The spin (l/2) of 19F has a large cross section for axial coupled WIMPs. The fast response time of a MMC sensor...

18. A lab-scale experiment for keV sterile neutrino search from tritium beta decay spectrum

Yong Chang Lee (SNU)

8/10/21, 3:00 PM

We developed a simple small-scale detection method for beta decay
spectrum of 3H. This research is motivated to investigate the presence
of sterile neutrinos in keV region. In our experiment, tritium nuclei
are embedded in a 1x1x1 cm^3 LiF crystal from 6Li(n,3H)4He reaction.
The beta energy spectrum is measured with an MMC sensor, one of the
high-resolution microcalorimeters operating at...

19. Semiempirical calculation of quenching factors for ions in scintillators

Volodymyr Tretyak (Institute of Nuclear Physics)

8/10/21, 3:30 PM

20. Discussion

8/10/21, 4:30 PM

21. Background particle rate of an Axion-like Particle Search at the DAMSA experiment

Min Sang RYU (CHEP)

8/11/21, 10:00 AM

With the 2012 discovery of the Higgs-like particle at CERN and its increasingly Standard Model-like properties, the primary interests of the field of particle physics are shifting to the study of the remaining 95% of the matter and energy in the universe, using accelerators. The so-called unseen aboriginal particles (UAPs) that make up a large fraction of the 95% could be produced and...

22. Relic neutrino detection

Yeongduk Kim (CUP, IBS)

8/11/21, 10:30 AM

PTOLEMY is an experiment trying to detect the relic neutrinos with Tritium target of 100 g mass. I will present another targets which try to use the resonant interaction of neutrino induced electron capture. Though none of the candidate nuclei seem to be better than the Tritium target, there are rooms to investigate further the masses more precisely. There is another proposal to use...

23. Summary

Yeongduk Kim (CUP, IBS)

8/11/21, 11:00 AM

24. Discussion

8/11/21, 2:00 PM

2. Detection of Axion

Hyang Kyu Park (Korea University)

Despite the great sucess of the Standard Model of particle physics, the strong CP problem has been rmained as the unsolved problem.
The possible solution to solve this problem is to introduce a hypothetical particle so called Axion.
In this talk, we will discuss how to detect the Axion by terrestrial experiment.