Göttingen 2025 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 10: Neutrino Astronomy I
T 10.6: Vortrag
Montag, 31. März 2025, 18:00–18:15, VG 1.105
Combined sensitivity of JUNO and Super-K on the Black Hole Fraction — •Tim Charissé1,2, George Parker2, David Maksimović2, and Michael Wurm2 — 1Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, D-64291 Darmstadt, Germany — 2Johannes Gutenberg-Universität Mainz, Institute of Physics and EC PRISMA+
The Diffuse Supernova Neutrino Background (DSNB) is the integrated signal of neutrinos emitted by all core-collapse supernovae (CCSNe) that occurred in the visible universe. Studying it offers insights into the inner workings of CCSNe as well as cosmological properties. The Jiangmen Underground Neutrino Observatory (JUNO), which will soon begin data taking, and the already established Super-Kamiokande (Super-K) detector are promising candidates to measure the DSNB in the near future.
While most CCSNe explode and leave behind a neutron star, an undetermined fraction of CCSNe do not explode due to prior black hole formation and hence cannot be seen by optical telescopes. However, these black hole-forming CCSNe still emit a massive amount of neutrinos which have a different spectral contribution to the DSNB than those emitted by exploding CCSNe. Therefore, the overall fraction of CCSNe that are black hole-forming might be inferred from a measurement of the DSNB spectrum. We are investigating the potential sensitivity of combined DSNB measurements by JUNO and Super-K to the black hole fraction.
Keywords: DSNB; JUNO; Black Hole Fraction; CCSNe