Measuring the weak mixing angle at SBND

Alves, Gustavo F.S.; Ferreira, Antonio P.; Li, Shirley Weishi; Machado, Pedro A.N.; Perez-Gonzalez, Yuber F.

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DOE OSTI · 2446896

Measuring the weak mixing angle at SBND

Alves, Gustavo F.S.·Ferreira, Antonio P.·Li, Shirley Weishi·Machado, Pedro A.N.·Perez-Gonzalez, Yuber F.

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Abstract

The weak mixing angle provides a sensitive test of the Standard Model. We study SBND's sensitivity to the weak mixing angle using neutrino-electron scattering events. We perform a detailed simulation, paying particular attention to background rejection and estimating the detector response. We find that SBND can provide a reasonable constraint on the weak mixing angle, achieving 8% precision for $10^{21}$ protons on target, assuming an overall flux normalization uncertainty of 10%. This result is superior to those of current neutrino experiments and is relatively competitive with other low-energy measurements.

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BibTeX RIS

Alves, Gustavo F.S., Ferreira, Antonio P., Li, Shirley Weishi, Machado, Pedro A.N., Perez-Gonzalez, Yuber F.. 2024-09-11. Measuring the weak mixing angle at SBND. https://www.osti.gov/biblio/2446896

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