Work

Measuring the weak mixing angle at SBND

Year: 2024

Type: preprint

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.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2409.07430

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

Institutions: Fermi National Accelerator Laboratory, Universidade de São Paulo, University of California, Irvine, Durham University

Language: English

Topic: Neutrino Physics Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Science and Technology Facilities Council, Fermilab

Awards: G154696372, G1907584174, Proposal for IPPP (UK National Phenomenology Institute), 2020-2023, G5000543663, G6438247056, G756115524

OpenAlex ID: W4403284029

Cites:

Cited by: 2

Related to: 10