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Jun 12 – 14, 2024
ADEIT Salón de actos
Europe/Madrid timezone

First Measurement of CEvNS on Germanium by COHERENT

Jun 12, 2024, 11:50 AM
20m
ADEIT Salón de actos

ADEIT Salón de actos

Plaza Virgen de la Paz, 3. 46001 Valencia
Talk Talks

Speaker

Ryan Bouabid

Description

P-type Point Contact (PPC) High-Purity Germanium detectors have been a popular choice for CEvNS searches due to their sub-keV energy thresholds and kg-scale masses. Recently, the COHERENT Collaboration constructed Ge-mini: an 18-kg array of Inverted-Coaxial Point Contact (ICPC) PPC detectors. In this talk we will discuss the design, construction and performance and operation of the Ge-mini array. We will discuss analysis of data collected during the summer 2023 SNS run, in which we observe a beam-on excess of 18.4+6.7−5.9 counts with a total exposure of 7.47 GWh-kg and reject the no-CEvNS hypothesis by 3.9 sigma. This result agrees with the predicted standard model of particle physics signal rate within 1sigma.

Primary author

Ryan Bouabid

Presentation materials