Supernova Constraints on Dark Flavored Sectors

Abstract

Proto-neutron stars forming a few seconds after core-collapse supernovae are hot and dense environments where hyperons can be efficiently produced by weak processes. By making use of various state-of-the-art supernova simulations combined with the proper extensions of the equations of state including $\Lambda$ hyperons, we calculate the cooling of the star induced by the emission of dark bosons $X^0$ through the decay $\Lambda \to n{X}^0$. Comparing this novel energy-loss process to the neutrino cooling of SN 1987A allows us to set stringent constraints on massless dark photons and axions with flavor-violating couplings to quarks. We find that this new supernova bound can be orders of magnitude stronger than other limits in dark-sector models.

Published version

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Cited by in corpus (17)

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• 511 keV line constraints on feebly interacting particles from supernovae
• Supernova Limits on Muonic Dark Forces
• Axion emission from strange matter in core-collapse SNe
• Multimessenger search for electrophilic feebly interacting particles from supernovae
• Cross section for supernova axion observation in neutrino water Cherenkov detectors
• NuSTAR bounds on radiatively decaying particles from M82
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• In-flight positron annihilation as a probe of feebly interacting particles
• Hyperons during proto-neutron star deleptonization and the emission of dark flavoured particles
• New Physics Searches at Kaon and Hyperon Factories
• Axion Emission from Proton Cooper Pairs in Neutron Stars
• The Strange Physics of Dark Baryons