Solar Neutrino Probes of Light New Physics: Updated Limits from LUX-ZEPLIN Experiment

Abstract

The recent low-energy electron recoil (ER) results reported by the LUX-ZEPLIN (LZ) experiment have established the most stringent constraints to date on new physics scenarios, specifically for solar axion-like particles with keV-scale masses and mirror dark matter. Motivated by this enhanced sensitivity and the resulting restrictive limits, our present work focuses on probing light mediator models via elastic neutrino-electron scattering induced by solar neutrinos. We specifically consider two broad classes of new physics scenarios: (i) universal light mediator models consistent with Lorentz invariance, including scalar, vector, and tensor interactions, and (ii) anomaly-free leptophilic $U(1{)}^{\prime }$ gauge extensions featuring a new vector mediator associated with the $L_e-L_{\mu }$, $L_e-L_{\tau }$, $L_{\mu }-L_{\tau }$, and $L_e+2L_{\mu }+2L_{\tau }$ symmetries. By incorporating contributions from these interactions into the neutrino-electron scattering cross-section and utilizing the most precise solar neutrino flux predictions, we analyze the latest LZ ER datasets. We report novel constraints on the coupling-mass parameter space for these models. Furthermore, we contextualize our findings by comparing them with established bounds from various laboratory, cosmological, and astrophysical sources. Our analysis demonstrates that LZ data provide significantly improved limits in previously unconstrained regions of the parameter space.

14 pages (two columns), 9 figures and 2 tables

References in corpus (23)

• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment
• Search for a dark photon in e+e- collisions at BABAR
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm
• A new Generation of Standard Solar Models
• NuFit-6.0: Updated global analysis of three-flavor neutrino oscillations
• Search for New Physics in Electronic Recoil Data from XENONnT
• Cosmology With a Very Light $L_{\mu }-L_{\tau }$ Gauge Boson
• Dark Matter Search Results from 4.2 Tonne-Years of Exposure of the LUX-ZEPLIN (LZ) Experiment
• A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• Physics implications of a combined analysis of COHERENT CsI and LAr data
• Supernova Constraints on Massive (Pseudo)Scalar Coupling to Neutrinos
• Novel constraints on neutrino physics beyond the standard model from the CONUS experiment
• Implications of first LZ and XENONnT results: A comparative study of neutrino properties and light mediators
• Search for a New B-L Z' Gauge Boson with the NA64 Experiment at CERN
• Detecting Beyond the Standard Model Interactions of Solar Neutrinos in Low-Threshold Dark Matter Detectors
• Light vector mediators at direct detection experiments
• Solar neutrino constraints on light mediators through coherent elastic neutrino-nucleus scattering
• Probing Standard Model and Beyond with Reactor CE$\nu$NS Data of CONUS+ experiment
• Exploring New Physics with PandaX-4T Low Energy Electronic Recoil Data
• Reactor antineutrinos CE$\nu$NS on germanium: CONUS+ and TEXONO as a new gateway to SM and BSM physics
• Probing generalized neutrino interactions with the DUNE Near Detector
• Probing light mediators with recent PandaX-4T low energy electron recoil data