May 29, 2018 to June 3, 2018
Hyatt Regency Indian Wells Conference Center
US/Pacific timezone

CEvNS Observation at the SNS with the COHERENT Experiment

May 31, 2018, 3:00 PM
20m
East Foyer | Larkspur/Mesquite Rooms (Hyatt Regency Indian Wells Conference Center)

East Foyer | Larkspur/Mesquite Rooms

Hyatt Regency Indian Wells Conference Center

44600 Indian Wells Lane, Indian Wells, CA 92210, USA

Speaker

Dr Ivan Tolstukhin (Department of Physics, Indiana University, Bloomington, IN, 47405, USA)

Description

The process of coherent elastic neutrino-nucleus scattering (CEvNS) predicted more than 40 years ago eluded detection for a long time despite having the largest cross-section for low-energy neutrino interactions. This is largely because CEvNS detection requires sensitivity to low-energy nuclear recoils in a potentially high-background environment. The COHERENT collaboration is deploying a suite of low-energy detectors in a low-background corridor of the Spallation Neutron Source (SNS) at the Oak Ridge National Laboratory (ORNL) to test the $N^2$-dependence of CE$\nu$NS with different nuclear targets and detector technologies. The first observation of CEvNS at a 6.7$\sigma$ confidence level was recently made by the COHERENT experiment with a 14.6 kg CsI[Na] detector. The result is in agreement with the Standard Model prediction and already improves constraints on non-standard neutrino interactions. In addition, COHERENT has a 185 kg NaI[Tl] scintillating crystal array and an about 22 kg LAr detector to provide results on CEvNS from a light nucleus where nuclear form factors are close to unity. Planning is ongoing for a 10 kg PPC HPGe to be deployed in the near future. The recent observation of CEvNS at SNS, an overview of the COHERENT experiment, and a survey of the future experimental program will be presented.
E-mail ivantols@indiana.edu
Collaboration name COHERENT
Funding source Collaborators are supported by the U. S. Department of Energy Office of Science, the National Science Foundation, NASA, and the Sloan Foundation.

Primary author

Dr Ivan Tolstukhin (Department of Physics, Indiana University, Bloomington, IN, 47405, USA)

Presentation materials