Neutrino millicharge and other electromagnetic interactions with COHERENT-2021 data

Abstract

We analyze new data from the COHERENT experiment of the coherent neutrino-nucleus scattering to investigate the electromagnetic interactions of neutrinos. With almost double the statistics and precision now, the statistical significance of the observed process has now enhanced to 11.6$\sigma$. We derive constraints on the electromagnetic properties of neutrinos using the new COHERENT data. The constraints improve by more than a factor of two compared to the previous bounds. Furthermore, we discuss the unique behavior of the neutrino millicharge at lower energy recoils and show its unique dependence on its interference with the standard model contribution, inverse power of recoil energy and the mass of the target particle in comparison to the other interactions.

15 pages; 5 figures; Background was missing in the first version which has been corrected now; 1 table; Published in Nuclear Physics B

References in corpus (10)

• Observation of Coherent Elastic Neutrino-Nucleus Scattering
• Feebly-Interacting Particles:FIPs 2020 Workshop Report
• A COHERENT enlightenment of the neutrino Dark Side
• Measurement of the Coherent Elastic Neutrino-Nucleus Scattering Cross Section on CsI by COHERENT
• The Migdal effect in semiconductors
• New bounds on millicharged particles from cosmology
• Physics results from the first COHERENT observation of CE$\nu$NS in argon and their combination with cesium-iodide data
• Search for millicharged particles in reactor neutrino experiments: a probe of the PVLAS anomaly
• Can Nonstandard Neutrino Interactions explain the XENON1T spectral excess?
• Constraints on General Light Mediators from PandaX-II Electron Recoil Data

Cited by in corpus (9)

• Physics implications of a combined analysis of COHERENT CsI and LAr data
• Solar neutrino constraints on light mediators through coherent elastic neutrino-nucleus scattering
• Probing active-sterile neutrino transition magnetic moment on coherent elastic solar neutrino-nucleus scattering
• Probing Standard Model and Beyond with Reactor CE$\nu$NS Data of CONUS+ experiment
• Neutrino Electromagnetic Properties and the Weak Mixing Angle at the LHC Forward Physics Facility
• Extra dimensions with light and heavy neutral leptons: An application to CE$\nu$NS
• Neutrino magnetic moment and inert doublet dark matter in a Type-III radiative scenario
• Disentangle Neutrino Electromagnetic Properties with Atomic Radiative Pair Emission
• Anapole moment of neutrinos and radioactive sources near liquid xenon detectors