Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 1: Searches/BSM I (HNL, ETmiss+X)

T 1.4: Vortrag

Montag, 31. März 2025, 17:30–17:45, ZHG010

Searching for heavy neutral leptons at the NA62 experiment in beam dump mode — •Jonathan Schubert — Max-Planck-Institut for Physics (Werner-Heisenberg-Institut), Boltzmannstr. 8, 85748 Garching, Germany — Technical University of Munich, TUM School of Natural Sciences, Physics Department, Chair for Data Science in Physics, 85748 Garching, Germany

Heavy neutral leptons are a commonly considered hypothetical class of particles with the potential to explain several puzzles of fundamental physics. The NA62 experiment at the CERN SPS can be operated in beam-dump mode, where 400 GeV protons are dumped on an absorber. Due to the large number of interactions in the dump feebly interacting particles like heavy neutral leptons may be produced abundantly. Their downstream decays could be observed with excellent sensitivity using the existing detector apparatus. We report on the status of the first search at NA62 for such decay signatures.

Keywords: heavy neutral leptons; beam dump