[en] We revisit the limit on very light axion-like particles from the absence of coincidental gamma rays with the neutrino burst from SN1987A. This is done using an updated supernova simulation, an updated model for the magnetic field inside the Galaxy, and a Primakoff cross section which takes into account proton degeneracy.
Disciplines :
Space science, astronomy & astrophysics Physics
Author, co-author :
Payez, Alexandre ; Deutsches Elektronen-Synchrotron (DESY) > Theory group
Evoli, Carmelo; Hamburg University > II. Institute for Theoretical Physics
Fischer, Tobias; University of Wroclaw > Institute for Theoretical Physics
Giannotti, Maurizio; Barry University > Physical Sciences
Mirizzi, Alessandro; Hamburg University > II. Institute for Theoretical Physics
Ringwald, Andreas; Deutsches Elektronen-Synchrotron (DESY) > Theory Group
Language :
English
Title :
A fresh look on the limit on light ALPs from SN1987A
