Measurement of sigma(e+e- =>pi+pi-) at e+e- colliders

TL;DR

This paper discusses the prospects and methods for measuring the e+e- to pi+pi- cross section at DAFNE-II, highlighting recent experimental and theoretical developments relevant to the hadronic contribution to muon g-2.

Contribution

It provides an overview of experimental techniques and theoretical considerations for measuring the pi+pi- cross section at e+e- colliders, emphasizing initial state radiation methods.

Findings

Feasibility of measuring the hadronic cross section at DAFNE-II

Theoretical background for muon anomaly calculations

Experimental strategies for cross section measurement

Abstract

At the DAFNE-II workshop a session was devoted to the prospects of measuring the hadronic cross section at the new DAFNE. The session included six papers, two theoretical and four experimental ones. The theory treatises, one on the muon anomaly and the other on measuring the hadronic cross section using initial state radiation at $e^+e^-$ colliders, set the background for the four experimental discussions. I summarize in the following the salient points of the session.