9–11 Jun 2025
Centro Brasileiro de Pesquisas Físicas
America/Sao_Paulo timezone

Status and Prospect of the COHERENT D2O Detector for the Neutrino Flux Normalization

9 Jun 2025, 18:00
2h
Auditório Ministro João Alberto Lins de Barros (Centro Brasileiro de Pesquisas Físicas)

Auditório Ministro João Alberto Lins de Barros

Centro Brasileiro de Pesquisas Físicas

Rua Dr. Xavier Sigaud 150 Urca, Rio de Janeiro, RJ Brazil

Speaker

Seung Mok Lee (Carnegie Mellon University)

Description

After the detection of CE$\nu$NS, the COHERENT collaboration is exploring new physics by precisely measuring the process. However, the uncertainty of the neutrino flux normalization is limiting the precision. To reduce the uncertainty, a heavy water (D$_{2}$O) detector has taken data at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory (ORNL) since 2023. By utilizing the well-understood charged-current interaction of deuterium, this D$_{2}$O detector is anticipated to reduce the flux uncertainty from 10% to less than 3% within a few years. In addition, the second module, made of water (H$_{2}$O), was recently installed to further understand the neutrino interaction with oxygen. This poster will present the status of the detectors, especially focusing on the second H$_{2}$O module installation. Their anticipated impact on the precision measurement of CE$\nu$NS will also be covered.

Author

Seung Mok Lee (Carnegie Mellon University)

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