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.

arXiv comment15 pages; 5 figures; Background was missing in the first version which has been corrected now; 1 table; Published in Nuclear Physics B

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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