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arXiv · 2008.04918

Heavy axion-like particles and core-collapse supernovae: constraints and impact on the explosion mechanism

Giuseppe Lucente·Pierluca Carenza·Tobias Fischer·Maurizio Giannotti·Alessandro Mirizzi
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Abstract

Heavy axion-like particles (ALPs), with masses $m_a \gtrsim 100$ keV, coupled with photons, would be copiously produced in a supernova (SN) core via Primakoff process and photon coalescence. Using a state-of-the-art SN model, we revisit the energy-loss SN 1987A bounds on axion-photon coupling. Moreover, we point out that heavy ALPs with masses $m_a \gtrsim 100$ MeV and axion-photon coupling $g_{a\gamma} \gtrsim 4 \times 10^{-9}$ GeV$^{-1}$ would decay into photons behind the shock-wave producing a possible enhancement in the energy deposition that would boost the SN shock revival.

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Giuseppe Lucente, Pierluca Carenza, Tobias Fischer, Maurizio Giannotti, Alessandro Mirizzi. 2020-08-11. Heavy axion-like particles and core-collapse supernovae: constraints and impact on the explosion mechanism. https://doi.org/10.1088/1475-7516/2020/12/008

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