Results 21 to 30 of about 21,702 (168)
Axion emission from supernova with axion-pion-nucleon contact interaction
Journal of High Energy Physics, 2022 We examine the axion emission from supernovae with a complete set of relevant axion couplings including the axion-pion-nucleon contact interaction which was ignored in the previous studies.
Kiwoon Choi +3 more
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Kaluza-Klein FIMP dark matter in warped extra-dimensions
Journal of High Energy Physics, 2020 We study for the first time the case in which Dark Matter (DM) is made of Feebly Interacting Massive Particles (FIMP) interacting just gravitationally with the standard model particles in an extra-dimensional Randall-Sundrum scenario. We assume that both
Nicolás Bernal +3 more
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Journal of High Energy Physics, 2022 In the absence of any hints of new physics in LHC, TeV dark matter candidates interacting through electroweak force (EWDM) are still highly motivated. We extend the Standard Model by adding an arbitrary SU(2) DM multiplet in non-chiral representation. In
Ramtin Amintaheri
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Strongly interacting dark sectors in the early Universe and at the LHC through a simplified portal
Journal of High Energy Physics, 2020 We study the cosmology and LHC phenomenology of a consistent strongly interacting dark sector coupled to Standard Model particles through a generic vector mediator.
Elias Bernreuther +3 more
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Thermodynamic evolution of secluded vector dark matter: conventional WIMPs and nonconventional WIMPs
Journal of High Energy Physics, 2019 The secluded dark matter resides within a hidden sector and self-annihilates into lighter mediators which subsequently decay to the Standard Model (SM) particles.
Kwei-Chou Yang
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Journal of High Energy Physics, 2020 Producing an acceptable thermal relic abundance of dark matter with masses ≫ 102 TeV is a challenge. We propose a novel mechanism where GeV-scale states establish a tiny thermal relic abundance for dark matter, which is later promoted to ultra massive ...
Hooman Davoudiasl, Gopolang Mohlabeng
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Gravitational production of superheavy dark matter and associated cosmological signatures
Journal of High Energy Physics, 2019 We study the gravitational production of super-Hubble-mass dark matter in the very early universe. We first review the simplest scenario where dark matter is produced mainly during slow roll inflation.
Lingfeng Li +4 more
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Peccei-Quinn phase transition at LIGO
Journal of High Energy Physics, 2020 The LIGO observatories can potentially detect stochastic gravitational waves arising from phase transitions which happened in the early universe at temperatures around T ∼ 108 GeV.
Benedict von Harling +3 more
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Stringy Effects During Inflation and Reheating [PDF]
, 2005 We consider inflationary cosmology in the context of string compactifications with multiple throats. In scenarios where the warping differs significantly between throats, string and Kaluza-Klein physics can generate potentially observable corrections to ...
A. Vilenkin +6 more
core +3 more sources
Electroweak-symmetric dark monopoles from preheating
Journal of High Energy Physics, 2020 If the dark sector contains ’t Hooft-Polyakov monopoles and a small enough dark gauge coupling, dark monopoles could be a macroscopic dark matter candidate. Its Higgs-portal coupling to the Standard Model can modify the electroweak vacuum in the monopole
Yang Bai +2 more
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