Speaker
Description
Core-collapse Supernovae (SNe) are considered among the most promising astrophysical laboratories to study the phenomenology of axion-like particles (ALPs). Because of the extreme condition of temperature and density reached in the core of the exploding star, ALPs can be copiously produced by means of their interactions with nuclear matter. In this talk, I will discuss how a large emission of ALPs during a SN event could induce observable signatures, as the shortening of the duration of the expected SN neutrino burst or the trigger of ALP-induced events in neutrino water Cherenkov detectors [1]. In this regard, I will argue that observations related to the SN 1987A neutrino burst can be employed to set stringent constraints on axion properties.
[1] A. Lella, G. Co', P. Carenza, G. Lucente, M. Giannotti, A. Mirizzi, T. Rauscher, ``Getting the most on supernova axions'', Phys.Rev.D 109 (2024) no.2, 023001 [arXiv:2306.01048 [hep-ph]].
