Measuring the Weak Mixing Angle in the DUNE near-Detector Complex

被引：20

作者：

de Gouvea, Andre ^{[1
]}

Machado, Pedro A. N. ^{[2
]}

Perez-Gonzalez, Yuber F. ^{[1
,2
,3
]}

Tabrizi, Zahra ^{[4
]}

机构：

[1] Northwestern Univ, Dept Phys & Astron, Evanston, IL 60208 USA

[2] Fermilab Natl Accelerator Lab, Theoret Phys Dept, POB 500, Batavia, IL 60510 USA

[3] Colegio Fis Fundamental & Interdisciplinaria Amer, 254 Norzagaray St, San Juan, PR 00901 USA

[4] Univ Estadual Campinas UNICAMP, Inst Fis Gleb Wataghin, Rua Sergio Buarque de Holanda 777, BR-13083859 Campinas, SP, Brazil

来源：

PHYSICAL REVIEW LETTERS | 2020年 / 125卷 / 05期

基金：

巴西圣保罗研究基金会;

关键词：

ELECTROWEAK PARAMETERS; PRECISE DETERMINATION; DISTRIBUTIONS; SCATTERING;

D O I：

10.1103/PhysRevLett.125.051803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The planned DUNE experiment will have excellent sensitivity to the vector and axial couplings of the electron to the Z boson via precision measurements of neutrino-electron scattering. We investigate the sensitivity of DUNE-PRISM, a movable near detector in the direction perpendicular to the beam line, and find that it will qualitatively impact our ability to constrain the weak couplings of the electron. We translate these neutrino-electron scattering measurements into a determination of the weak mixing angle at low scales and estimate that, with seven years of data taking, the DUNE near detector can be used to measure sin(2)theta(w) with about 2% precision. We also discuss the impact of combining neutrino-electron scattering data with neutrino trident production at DUNE-PRISM.

引用

页数：6

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