Erlangen 2026 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

T: Fachverband Teilchenphysik

T 59: Neutrino Astronomy III

T 59.9: Talk

Wednesday, March 18, 2026, 18:15–18:30, KS H C

Combined Likelihood Analysis for Supernova Hunting — •Thilo Birkenfeld, Achim Stahl, and Christopher Wiebusch — III. Physikalisches Institut B, RWTH Aachen, Germany

The Combined Likelihood Analysis for Supernova Hunting (CLASH) is a software framework for the search for faint Supernova (SN) signals in various kinds of experimental data streams. Supernovae are frequently observed via optical telescopes. Observations via neutrinos and/or gravitational waves are highly anticipated, as they will provide valuable insights into the nature of the explosion onset. However, the observation of neutrinos from an SN has succeeded only once so far, for SN 1987A. The chance of such an observation is given by the SN rate in Earth's vicinity and the limited detection range of individual experiments. We developed a likelihood-ratio test comparing the persistent signal hypothesis with a background-only model as a function of time. It can be applied to individual experiments of various kinds or multiple detectors in combination, increasing the observable range. In this talk, I present CLASH, its underlying methodology, and discuss its use for pertinent detectors such as JUNO and Hyper-K.

Keywords: Supernova; Neutrino