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July 30, 2022 to August 6, 2022
Cliff Lodge
US/Mountain timezone

Status of the KDAR neutrino search with JSNS2 experiment

Aug 4, 2022, 5:16 PM
Ballroom 2

Ballroom 2

Talk WG1: Neutrino Oscillation Physics WG1: Neutrino Oscillations


Hyoungku Jeon (SungKyunKwan University)


Kaon Decay-At-Rest (KDAR) provides a neutrino signal with well-known neutrino energy, which is an important probe for measuring the neutrino cross-section in an energy range that is otherwise difficult to access experimentally. The J-PARC Sterile Neutrino Search at the J-PARC Spallation Neutron Source (JSNS2) experiment is in a unique place for measuring monoenergetic neutrinos at 236 MeV from charged Kaon decay-at-rest (KDAR). JSNS2 is located at the J-PARC's Material and Life Science Facility (MLF) where the world’s most intense source of KDAR was created by a 3 GeV proton beam incident on a liquid mercury target. In this presentation, We will present the first result of the search for the KDAR neutrinos conducted with the JSNS2 experiment with the data during the JSNS2's first long-term physics run in 2021, consisting of more than 115 days of data and 1.45x10^22 POT.

Attendance type Virtual presentation

Primary author

Hyoungku Jeon (SungKyunKwan University)

Presentation materials