Speaker
R. Andrew Gustafson
(Virginia Tech)
Description
Dark matter (DM) - neutrino interactions will necessarily lead to a time-delayed flux of neutrinos from transient sources. Considering Milky Way supernovae, we find scattering with DM can lead to neutrino time delays on the order of thousands of years. Multiple supernovae are expected to occur on such timescales, meaning we expect a nearly continuous diffuse neutrino flux. We call this the Dark Matter Diffused Supernova Neutrino Background. We show that current DSNB flux upper bounds can set limits DM-neutrino cross sections at $σ/m_{DM}$ ~ $10^{-24} cm^{2} GeV^{-1}$, one order of magnitude stronger than SN 1987A for DM masses above 100 MeV.
Author
R. Andrew Gustafson
(Virginia Tech)
Co-authors
Garv Chauhan
(Virginia Tech, Arizona State University)
Gonzalo Herrera
(Virginia Tech)
Ian Shoemaker
(Virginia Tech)
Taj Johnson
(Virginia Tech, Cornell College)
