Precision Measurements with High Energy Neutrino Beams

TL;DR

This paper discusses how high-energy neutrino beams enable precise tests of the Standard Model, including electroweak interactions, structure functions, and parton distributions, through various scattering measurements.

Contribution

It introduces the potential of high-energy neutrino beams for comprehensive electroweak and QCD measurements, highlighting new methods for probing fundamental particle interactions.

Findings

Neutrino scattering provides precise electroweak measurements.

Structure functions can be tested through Q^2 evolution.

Charm production measurements inform on strange quark content and CKM matrix.

Abstract

Neutrino scattering measurements offer a unique tool to probe the electroweak and strong interactions as described by the Standard Model (SM). Electroweak measurements are accessible through the comparison of neutrino neutral- and charged-current scattering. These measurements are complimentary to other electroweak measurements due to differences in the radiative corrections both within and outside the SM. Neutrino scattering measurements also provide a precise method for measuring the F_2(x,Q^2) and xF_3(x,Q^2 structure functions. The predicted Q^2 evolution can be used to test perturbative Quantum Chromodynamics as well as to measure the strong coupling constant, alpha _s, and the valence, sea, and gluon parton distributions. In addition, neutrino charm production, which can be determined from the observed dimuon events, allows the strange-quark sea to be investigated along with measurements of the CKM matrix element |V_{cd}| and the charm quark mass.