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Is there a supernova bound on axions?

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arxiv 1907.05020 v2 pith:4KVS72EU submitted 2019-07-11 hep-ph astro-ph.HE

Nitsan Bar , Kfir Blum , Guido D'Amico This is my paper · ORCID
classification hep-phastro-ph.HE
keywords bounddiskaxionscoolingneutrinosn1987asupernovaaccretion
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abstract

We present a critical assessment of the SN1987A supernova cooling bound on axions and other light particles. Core-collapse simulations used in the literature to substantiate the bound omitted from the calculation the envelope exterior to the proto-neutron star (PNS). As a result, the only source of neutrinos in these simulations was, by construction, a cooling PNS. We show that if the canonical delayed neutrino mechanism failed to explode SN1987A, and if the pre-collapse star was rotating, then an accretion disk would form that could explain the late-time ($t\gtrsim5$ sec) neutrino events. Such accretion disk would be a natural feature if SN1987A was a collapse-induced thermonuclear explosion. Axions do not cool the disk and do not affect its neutrino output, provided the disk is optically-thin to neutrinos, as it naturally is. These considerations cast doubt on the supernova cooling bound.

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Cited by 4 Pith papers

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

  1. MeV Electrophilic Axion-like Particles from Sun

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    Optically trapped nanosphere arrays could detect nuclear recoils from solar ALPs, sub-keV pseudoscalar/vector dark matter, and Earth-bound dark matter, opening new tabletop search windows in previously unconstrained p...

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