Results 181 to 190 of about 885 (207)
The low-energy effective theory of axions and ALPs [PDF]
Journal of High Energy Physics, 2021 Axions and axion-like particles (ALPs) are well-motivated low-energy relics of high-energy extensions of the Standard Model, which interact with the known particles through higher-dimensional operators suppressed by the mass scale Λ of the new-physics ...
Marvin Schnubel +2 more
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Supernova Muons: New Constraints on Z′ Bosons, Axions and ALPs [PDF]
Journal of High Energy Physics, 2021 New light particles produced in supernovae can lead to additional energy loss and a consequent deficit in neutrino production in conflict with the neutrinos observed from Supernova 1987A (SN1987A). Contrary to the majority of previous SN1987A studies, we
Samuel D. McDermott +2 more
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Audible axions with a booster: Stochastic gravitational waves from rotating ALPs
SciPost Physics, 2022 Gravitational waves provide a novel way to probe axions or axion-like particles coupled to a dark photon field, even in the absence of couplings to Standard Model particles. In the conventional misalignment mechanism, the generation of an observable stochastic gravitational wave background, however, requires large axion decay constants.
Eric Madge +2 more
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Axions from neutron star mergers
Physical Review D, 2022 Axionlike particles (ALPs) can in principle be produced in very hot and dense astrophysical environments, escape from the extreme object where such conditions are met, and then be converted in gamma rays in the magnetic fields intervening between the ...
Fabio Iocco, Damiano F G Fiorillo
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Alternative dark matter candidates: axions and ALPs [PDF]
Proceedings of Neutrino Oscillation Workshop — PoS(NOW2018), 2019 The QCD axion and particles with similar properties (axion-like particles or ALPs) are excellent candidates to be the cold dark matter of the Universe. They are extremely different to the standard WIMP, however. In this talk I presented and highlighted the mostly shocking aspects of axion dark matter, the prospects for its discovery and the recent ...
exaly +2 more sources
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2017
ALPS Collaboration Meeting, Mainz, University of Mainz, Germany, 6 Mar 2017 - 8 Mar ...
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ALPS Collaboration Meeting, Mainz, University of Mainz, Germany, 6 Mar 2017 - 8 Mar ...
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Overview for Axions/ALPs: theory perspective
Proceedings of The Eleventh Annual Conference on Large Hadron Collider Physics — PoS(LHCP2023)exaly +2 more sources
Search for Electric Dipole Moments and Axions/ALPS with Polarized Beams in Storage RIngs
Proceedings of 20th International Workshop on Polarized Source, Targets, and Polarimetry — PoS(PSTP2024)The research investigates two main questions in particle physics and cosmology: the fate of antimatter after the Big Bang and the nature of Dark Matter (DM). It focuses on studying Electric Dipole Moments (EDMs) in particles like protons and deuterons using polarized particle beams in a storage ring.
Lenisa, Paolo +3 more
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Cosmological adiabatic conversion between the QCD axion and ALP dark matter
2018We study the adiabatic conversion between the QCD axion and axion-like particle (ALP) at level crossing which occurs when their masses become close to each other in the early universe. This is similar to the Mikheyev-Smirnov-Wolfenstein effect in neutrino oscillations. After clarifying the conditions for the adiabatic conversion to occur, we focus on a
Ho, S., Saikawa, K., Takahashi, F.
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