5 papers
Search for Axion-Like Particles from Nearby Pre-Supernova Stars
Saurabh Mittal, Thomas Siegert, Francesca Calore +7
Axion-like particles (ALPs) are hypothetical pseudoscalar bosons that arise in many extensions of the Standard Model and are well-motivated dark matter candidates. Nearby massive s…
Detecting light axions from supernovae in nearby galaxies
Francesca Lecce, Alessandro Lella, Giuseppe Lucente +2
Axion-like particles (ALPs) coupled to nucleons can be efficiently produced in core-collapse supernovae (SNe) and then, if they couple to photons, convert into gamma rays in cosmic…
Fresh look at the diffuse ALP background from supernovae
Francisco R. Candón, Sougata Ganguly, Maurizio Giannotti +3
Protoneutron stars, highly compact objects formed in the core of exploding supernovae (SNe), are powerful sources of axion-like particles (ALPs). In the SN core, ALPs are dominantl…
Axion-induced pair production: a new strategy for axion detection
Fernando Arias-Aragón, Maurizio Giannotti, Giovanni Grilli di Cortona +1
We revisit and update the axion-induced pair production process in a nuclear electric field mediated by the axion-electron coupling, $a+{{}^{A}_{Z}X} \rightarrow {{}^{A}_{Z}X} + e^…
Do Finite Density Effects Jeopardize Axion Nucleophobia in Supernovae?
Luca Di Luzio, Vincenzo Fiorentino, Maurizio Giannotti +2
Nucleophobic axion models, wherein axion couplings to both protons and neutrons are simultaneously suppressed, can relax the stringent constraints from SN 1987A. However, it remain…