Speaker
Mr
Pedro Cavalcanti Malta
(Brazilian Centre for Research in Physics (CBPF) and Institute for Theoretical Physics (ITP - U. Heidelberg))
Description
We determine limits from SN 1987A on massive axion-like particles with masses in the keV-GeV range and that couple exclusively to two photons. The signal we use to determine these limits arises from the decay of the heavy particles on their way to Earth resulting in observable gamma-rays. We discuss the non-trivial time and angular distributions of such a signal. Looking into the future we also estimate the possible improvements if the red supergiant Betelgeuse explodes in a supernovae event.
Primary authors
Dr
Javier Redondo
(University of Zaragoza and Max Planck Institut fuer Physik)
Dr
Joerg Jaeckel
(Institute for Theoretical Physics (ITP - U. Heidelberg))
Mr
Pedro Cavalcanti Malta
(Brazilian Centre for Research in Physics (CBPF) and Institute for Theoretical Physics (ITP - U. Heidelberg))
