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- W4383993479 abstract "We investigate the effects of a Non-Standard Interaction (NSI) extension of the standard model of particle physics on solar neutrino flavour oscillations. This NSI model introduces a $U_{Z^prime}(1)$ gauge symmetry through a $Z^prime$ boson that mixes with the photon, creating a neutral current between active neutrinos and matter fields via a unique coupling to up and down quarks. The interaction is defined by a single parameter, $zeta_o$, which is related to the $Z^prime$ boson's mass $m_{Z^prime}$ and coupling constant $g_{Z^prime}$. Notably, this model relaxes the bounds on Coherent Elastic Neutrino-Nucleus Scattering experiments and fits the experimental values of the anomalous magnetic dipole moment of the muon. In this study, we use solar neutrino measurements and an up-to-date standard solar model to evaluate the neutrino flavour oscillations and assess the constraints on $zeta_o$. Our study indicates that the NSI model aligns with the current solar neutrino data when $zeta_o$ is between $-0.7$ and $0.002$. These models have $chi^2_{nu}$ values equal to or better than the standard neutrino flavor oscillation model, which stands at a $chi^2_{nu}$ of 3.12. The best NSI model comes with a $zeta_o$ value of -0.2 and a $chi^2_{nu}$ of 2.96. Including extra data from the Darwin experiment in our analysis refines the range of $zeta_o$ values from $-0.7$ to $0.002$, down to $-0.5$ to $-0.002$. These results hint at the possible existence of novel interactions, given that NSI models achieve a comparable or superior fit to the solar neutrino data when contrasted with the prevailing standard model of neutrino flavour oscillation." @default.
- W4383993479 created "2023-07-12" @default.
- W4383993479 creator A5055060620 @default.
- W4383993479 date "2023-07-10" @default.
- W4383993479 modified "2023-10-14" @default.
- W4383993479 title "Exploring nonstandard quark interactions through solar neutrino studies" @default.
- W4383993479 doi "https://doi.org/10.1103/physrevd.108.035028" @default.
- W4383993479 hasPublicationYear "2023" @default.
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