Results 181 to 190 of about 862 (207)
Enhanced extragalactic photon flux by PBH in a stimulated axion/ALP decay scenario
Nuclear Physics BYadir Garnica +2 more
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Aspects of Axions and ALPs Phenomenology [PDF]
Journal of Physics: Conference Series, 2023 Abstract The physics of axions and axion-like particles (ALPs) is enjoying an incredibly productive period, with many new experimental proposals, theoretical idea, and original astrophysical and cosmological arguments which help the search effort.
Giannotti, Maurizio
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The low-energy effective theory of axions and ALPs [PDF]
Journal of High Energy Physics, 2021 Abstract 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 sector.
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 Abstract 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 examine the impact of Z′ bosons, axions, and axion-like particles ...
Samuel McDermott +2 more
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Searching for axions and ALPs from string theory
Journal of Physics: Conference Series, 2014 We review searches for closed string axions and axion-like particles (ALPs) in IIB string flux compactifications. For natural values of the background fluxes and TeV scale gravitino mass, the moduli stabilisation mechanism of the LARGE Volume Scenario predicts the existence of a QCD axion candidate with intermediate scale decay constant, f_a ~ 10^9 ...
Andreas Ringwald
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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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Overview for Axions/ALPs: theory perspective
Proceedings of The Eleventh Annual Conference on Large Hadron Collider Physics — PoS(LHCP2023)exaly +2 more sources