IIHE invited seminar: High-energy neutrinos, cosmic rays, and gamma rays from gamma-ray bursts
by
DrMauricio Bustamante(The Ohio State University)
→
Europe/Brussels
Jean Sacton Seminar room (1G003) (IIHE, VUB)
Jean Sacton Seminar room (1G003)
IIHE, VUB
Description
abstract:
Ultra-high-energy cosmic rays and high-energy astrophysical neutrinos are
routinely detected, but their sources remain unknown. Gamma-ray bursts (GRBs)
have long been considered attractive candidate sources. Recently, the lack of
neutrinos detected in coincidence with known GRBs has motivated revisions of
the multi-messenger emission mechanism --- gamma rays, cosmic rays, neutrinos
--- from within the GRB jet. By embedding this revised mechanism in a
simulation of multiple emission regions within the jet, we obtain a robust
prediction for the minimal diffuse GRB neutrino flux, likely within the reach
of the planned detector upgrade, IceCube-Gen2. Further, we show that, by
looking for features in the shape of the GRB gamma-ray light curve, we can
assess whether a particular burst is likely to be an intense neutrino source.
