66 citations · 207 across the 13 of their papers we have counts for
15 papers
Decaying Dark Matter for the Exothermic Recoil at LZ
Yongsoo Jho, Sanghwan Kim, Seong Chan Park
The LUX-ZEPLIN (LZ) experiment has reported a single nuclear-recoil candidate at keV. We suggest that it comes from a GeV-scale dar…
Endothermic Dark Matter at LZ from a Decaying Parent
Yongsoo Jho, Sanghwan Kim, Seong Chan Park
The LUX-ZEPLIN experiment has reported a nuclear-recoil candidate near 248 keV. We investigate a decay source for an endothermic interpretation: a long-lived dark parent produces e…
Aspects of Sommerfeld Enhancement in the light of Halo gamma-ray excess
Yongsoo Jho, Jeonghwan Park, Min Gi Park +1
We examine Sommerfeld enhancement in dark matter annihilation as a potential origin of the halo-like gamma-ray excess near GeV reported by Totani. A minimal model wi…
Superheavy Supersymmetric Dark Matter for the origin of KM3NeT Ultra-High Energy signal
Yongsoo Jho, Seong Chan Park, Chang Sub Shin
We propose an explanation for the recently reported ultra-high-energy neutrino signal at KM3NeT, which shows no clear association with known astrophysical sources. While decaying d…
Primordial Black Holes as a Factory of Axions: Extragalactic Photons from Axions
Yongsoo Jho, Tae-Geun Kim, Jong-Chul Park +2
Primordial black holes (PBHs) are significant sources of axions and axion-like particles (ALPs), provided their Hawking temperature exceeds the particles' masses. Given the predomi…
Lepton-flavor violating axions at MEG II
Yongsoo Jho, Simon Knapen, Diego Redigolo
We study the sensitivity of the existing MEG data to lepton flavor violating axion-like particles produced through and estimate the discovery potential for the up…
The Forward Physics Facility at the High-Luminosity LHC
Jonathan L. Feng, Felix Kling, Mary Hall Reno +233
High energy collisions at the High-Luminosity Large Hadron Collider (LHC) produce a large number of particles along the beam collision axis, outside of the acceptance of existing L…
A comprehensive study of vector leptoquark with on the -meson and Muon g-2 anomalies
Kayoung Ban, Yongsoo Jho, Youngjoon Kwon +3
Recently reported anomalies in various meson decays and also in the anomalous magnetic moment of muon motivate us to consider a particular extension of the standard m…
Cosmic-Neutrino-Boosted Dark Matter (BDM)
Yongsoo Jho, Jong-Chul Park, Seong Chan Park +1
A novel mechanism of boosting dark matter by cosmic neutrinos is proposed. The new mechanism is so significant that the arriving flux of dark matter in the mass window $1~{\rm keV}…
Search for new light vector boson using at BESIII and Belle II
Kayoung Ban, Yongsoo Jho, Youngjoon Kwon +3
We investigate various search strategies for light vector boson in mass range using associated channels at BESIII and Belle II: (i) $J/Ψ\to η_…
Search for sterile neutrino with light gauge interactions: recasting collider, beam-dump, and neutrino telescope searches
Yongsoo Jho, Jongkuk Kim, Pyungwon Ko +1
We investigate features of the sterile neutrinos in the presence of a light gauge boson that couples to the neutrino sector. The novel bounds on the active-sterile neutrino m…
Leptonic New Force and Cosmic-ray Boosted Dark Matter for the XENON1T Excess
Yongsoo Jho, Jong-Chul Park, Seong Chan Park +1
The recently reported excess in XENON1T is explained by new leptonic forces, which are free from gauge anomalies. We focus on two scenarios with and without dark matter. In Scenari…
Light gauge boson interpretation for and the anomaly at the J-PARC KOTO experiment
Yongsoo Jho, Sung Mook Lee, Seong Chan Park +2
We discuss a list of possible light gauge boson interpretations for the long-standing experimental anomaly in and also recent anomalous excess in $K_L \rightarrow π^0 + \…
Search for muon-philic new light gauge boson at Belle II
Yongsoo Jho, Youngjoon Kwon, Seong Chan Park +1
Motivated by the long-lasting discrepancy in the anomalous magnetic moment of muon, we consider a new muon-specific force mediated by a light gauge boson, , with mass $m_…
Probing new physics with high-multiplicity events: UHE neutrinos at air-shower detector arrays
Yongsoo Jho, Seong Chan Park
Semi-classical processes such as production and decay of electroweak sphaleron in the Standard Model and also microscopic black hole in low scale gravity scenario typically involve…