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Proto-neutron stars as cosmic factories for massive axion-like-particles

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arxiv 2211.13760 v2 pith:BE3JM564 submitted 2022-11-24 hep-ph astro-ph.HE

Alessandro Lella , Pierluca Carenza , Giuseppe Lucente , Maurizio Giannotti , Alessandro Mirizzi This is my paper · ORCID
classification hep-phastro-ph.HE
keywords alpsaxion-like-particlesmassiveparameterproto-neutronsupernovaadditionbremsstrahlung
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abstract

The parameter space of massive axion-like-particles (ALPs) with $m_a \sim {\mathcal O} (100)$ MeV and coupled with nucleons is largely unexplored. Here, we present new constraints in this parameter region. In doing so, we characterize the supernova emissivity of heavy ALPs from a proto-neutron star, including for the first time mass effects in both nucleon-nucleon Bremsstrahlung and pionic Compton processes. In addition, we highlight novel possibilities to probe the couplings with photons and leptons from supernova ALP decays.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

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  4. In-flight positron annihilation as a probe of feebly interacting particles

    hep-ph 2025-01 conditional novelty 6.0 of 10

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    hep-ph 2024-12 conditional novelty 6.0 of 10

    A future nearby supernova could reveal sub-MeV axion-like particles through a delayed ~30 MeV photon signal in Super-Kamiokande and Hyper-Kamiokande, probing couplings down to about 3 x 10^-6.

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    hep-ph 2026-03 conditional novelty 2.0 of 10

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