Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Bae, Kyu-Jung"'
Autor:
Bae, Kyu Jung, Kim, Jongkuk
We consider the axion-mediated scattering processes between dark matter (DM) and nucleus. Substantial contributions are made via the CP-odd gluonic current which induces the spin-dependent process. Since the QCD axion is too feebly coupled to the vis
Externí odkaz:
http://arxiv.org/abs/2312.11210
The cosmological moduli problem (CMP) comes in three parts: 1. potential violation of BBN constraints from late decaying moduli fields, 2. the moduli-induced gravitino problem wherein gravitinos are overproduced and 3. the moduli-induced lightest SUS
Externí odkaz:
http://arxiv.org/abs/2201.06633
Autor:
Bae, Kyu Jung, Jeong, Kwang Sik
Publikováno v:
Phys. Rev. D 104, 015013 (2021)
We realize high scale supersymmetry in the mirage mediation. The Higgs sector is extended with the Peccei-Quinn symmetry, and the higgsino mass term is generated by the Kim-Nilles mechanism. In particular, the Peccei-Quinn symmetry breaking scale nat
Externí odkaz:
http://arxiv.org/abs/2105.08236
Autor:
Bae, Kyu Jung, Im, Sang Hui
Publikováno v:
Phys. Rev. D 102, 015011 (2020)
Implications of supersymmetrizing the clockwork axions are studied. Supersymmetry ensures that the saxions and axinos have the same pattern of the coupling hierarchy as the clockwork axions. If we assume supersymmetry breaking is universal over the c
Externí odkaz:
http://arxiv.org/abs/2004.05354
Publikováno v:
Phys. Rev. D 101, 115036 (2020)
Freeze-in mechanism provides robust dark matter production in the early universe. Due to its feeble interactions, freeze-in dark matter leaves signals at colliders which are often involved with long lived particle decays and consequent displaced vert
Externí odkaz:
http://arxiv.org/abs/2001.02142
Galactic-scale structure is of particular interest since it provides important clues to dark matter properties and its observation is improving. Weakly interacting massive particles (WIMPs) behave as cold dark matter on galactic scales, while beyond-
Externí odkaz:
http://arxiv.org/abs/1906.09141
Publikováno v:
Phys. Rev. D 99, 115027 (2019)
The supersymmetry preserving mu parameter in SUSY theories is naively expected to be of order the Planck scale while phenomenology requires it to be of order the weak scale. This is the famous SUSY mu problem. Its solution involves two steps: 1. firs
Externí odkaz:
http://arxiv.org/abs/1902.10748
Publikováno v:
Phys. Rev. D 99, 043502 (2019)
We show that both the baryon asymmetry of the universe and dark matter (DM) can be accounted for by the dynamics of a single axion-like field. In this scenario, the observed baryon asymmetry is produced through spontaneous baryogenesis---driven by th
Externí odkaz:
http://arxiv.org/abs/1811.10655
Publikováno v:
Phys. Rev. D 99, 023511 (2019)
The latest Lyman-$\alpha$ forest data severely constrain the conventional warm dark matter solution to small-scale issues in the cold dark matter paradigm. It has been also reported that unconstrained astrophysical processes may address the issues. I
Externí odkaz:
http://arxiv.org/abs/1806.08569
Publikováno v:
JCAP 01 (2018) 054
We consider freeze-in production of 7 keV axino dark matter (DM) in the supersymmetric Dine-Fischler-Srednicki-Zhitnitsky (DFSZ) model in light of the 3.5 keV line excess. The warmness of such 7 keV DM produced from the thermal bath, in general, appe
Externí odkaz:
http://arxiv.org/abs/1707.06418