Journal
JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 4, Pages -Publisher
SPRINGER
DOI: 10.1007/JHEP04(2022)008
Keywords
Neutrino Interactions; Neutrino Mixing; Non-Standard Neutrino Properties
Categories
Funding
- J.C Bose Fellowship of Science and Engineering Research Board of Department of Science and Technology, Government of India [JCB/2020/000011]
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The paper examines the potential of neutrino-electron scattering in exploring new physics beyond the standard model, particularly in the context of the general U(1) model. The analysis focuses on the constraints on the mass and coupling strength of an additional Z' from nu - e scattering at DUNE ND. The results highlight the possibilities of destructive interference effects and provide valuable bounds on the m(Z)' - g(X) plane.
The neutrino-electron scattering process is a powerful tool to explore new physics beyond the standard model. Recently the possibility of DUNE Near Detector (ND) to constrain various new physics scenarios using this process have been highlighted in the literature. In this work, we consider the most general U(1) model and probe the constraints on the mass and coupling strength of the additional Z' from nu - e scattering at DUNE ND. The presence of the Z' gives rise to extra interference effects. In the context of the general U(1) model, the destructive interference can occur in either neutrino or anti-neutrino channel or for both or none. This opens up the possibilities of getting four different type of signal in the neutrino and ant-neutrino runs of DUNE. We perform the analysis using both the total rate and binned events spectrum. Our results show that in a bin by bin analysis the effect of destructive interference is less compared to the analysis using total rate. We present the bounds on the m(Z)' - g(X) plane from nu - e scattering measurements at DUNE ND and compare these with those obtained from other nu - e scattering, COHERENT, and beam dump experiments. We show that the DUNE ND can give the best bound for certain mass ranges of Z'.
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