Kinematics of an off axis neutrino beam

TL;DR

This paper reviews the detailed kinematics of off-axis neutrino beams without simplifying assumptions, revealing new features that were previously obscured by approximations.

Contribution

It provides a comprehensive analysis of neutrino beam kinematics in off-axis configurations, highlighting features overlooked in earlier simplified models.

Findings

Identification of new kinematic features in off-axis neutrino beams

Clarification of differences from previous approximate models

Enhanced understanding of neutrino beam behavior

Abstract

We review the kinematics of a neutrino beam in the idealized case where the parent mesons momenta are parallel, but without other approximation. This reveals several interesting features, in particular in the off-axis case, which are hidden by the approximations made in a previous treatment.