Prospects for R Measurement at BaBar using Radiative Return

TL;DR

This paper proposes a method to measure the ratio R(s) of hadron to muon production in electron-positron collisions using initial-state radiation at BaBar, aiding precision electroweak tests.

Contribution

It introduces a novel approach to determine R(s) at BaBar through initial-state radiation events, enhancing measurement accuracy.

Findings

Method demonstrated using BaBar data

Potential for improved R(s) precision

Implications for electroweak measurements

Abstract

A precise measurement of the ratio of hadron to muon production in e^+e^- collisions, denoted by R(s), is a necessary input for the interpretation of current precision electroweak measurements. We describe a method for measuring R(s) with the BaBar detector at the PEP-II B-factory using initial-state radiation events.