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Constraints on neutrino non-standard interactions from COHERENT, PandaX-4T and XENONnT
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abstract
We investigate constraints on neutrino non-standard interactions (NSIs) in the effective field theory framework, using data from the first measurement of solar $^8$B neutrinos via coherent elastic neutrino-nucleus scattering (CE$\nu$NS) in the PandaX-4T and XENONnT experiments and data from the COHERENT experiment. The impacts of neutrino NSIs on the CE$\nu$NS cross section and the matter effect in the propagation of solar neutrinos are included, while we obtain that the expected number of CE$\nu$NS events is more sensitive to neutrino NSIs appearing in the cross section. Due to relatively large statistical uncertainties, the sensitivities of the PandaX-4T and XENONnT experiments to the neutrino NSIs are currently limited, compared to the COHERENT experiment. Besides, we find that since the central value of the measured CE$\nu$NS counts significantly differs from the Standard Model prediction, the sensitivity of PandaX-4T experiment is even more restricted compared to XENONnT. However, the measurements of PandaX-4T and XENONnT are uniquely sensitive to the neutrino NSIs for the $\tau$ flavor due to oscillation feature of the solar $^8$B neutrinos. We also assess how the experimental central value, exposure, and systematic uncertainties will affect the constraints on neutrino NSIs from various CE$\nu$NS measurements in the future.
Forward citations
Cited by 6 Pith papers
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Systematic Spurion Matching between Low Energy EFT and Chiral Lagrangian
A single SU(3)_V spurion can organize both LEFT and chiral Lagrangian operators up to dimension 9, enabling systematic operator-level matching between quark and hadron levels.
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Neutrino electromagnetic properties and sterile dipole portal in light of the first solar CE$\nu$NS data
The paper derives the first 90% CL limits on neutrino magnetic moments, millicharges, and the sterile dipole portal from solar 8B CEνNS data in XENONnT and PandaX-4T.
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Testing light and heavy vector mediators with solar CE$\nu$NS measurements
Combined solar CEνNS data from XENONnT, PandaX-4T, and LZ yield competitive constraints on vector NSI and light mediators and a weak mixing angle measurement at low momentum transfer.
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New light mediators and the neutrino fog: Implications from XENONnT nuclear recoil data
Light-mediator couplings are constrained more strongly when they attach to dark matter than to neutrinos, and the neutrinofog in xenon detectors is shifted and deformed under both scenarios.
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Probing conventional and new physics at the ESS with coherent elastic neutrino-nucleus scattering
Projected ESS CEνNS measurements would improve current constraints on the weak mixing angle, nuclear neutron radii, and several new physics scenarios by large factors, and would lead in some unexplored mass ranges.
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Exploring the Standard Model and Beyond from the Evidence of CE$\nu$NS with Reactor Antineutrinos in CONUS+
Fitting the CONUS+ reactor CEνNS event count yields sin²θW = 0.268 ± 0.047, µν < 5.6×10⁻¹⁰ µB, and NSI bounds similar to COHERENT, all consistent with the Standard Model.
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