Title:
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Astrophobic Axions
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Author:
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Luzio, Luca Di; Mescia, Federico; Nardi, Enrico; Panci, Paolo; Ziegler, Robert
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Other authors:
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Universitat de Barcelona |
Abstract:
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We propose a class of axion models with generation-dependent Peccei-Quinn charges for the known fermions that allow one to suppress the axion couplings to nucleons and electrons. Astrophysical limits are thus relaxed, allowing for axion masses up to O ( 0.1 ) eV . The axion-photon coupling remains instead sizable, so that next-generation helioscopes will be able to probe this scenario. Astrophobia unavoidably implies flavor-violating axion couplings so that experimental limits on flavor-violating processes can provide complementary probes. The astrophobic axion can be a viable dark matter candidate in the heavy mass window and can also account for anomalous energy loss in stars. |
Subject(s):
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-Física de partícules -Experiments -Particle physics -Experiments |
Rights:
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(c) American Physical Society, 2018
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Document type:
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Article Article - Published version |
Published by:
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American Physical Society
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