Initial-State Radiation Measurement of the e+e- -> pi+pi-pi+pi- Cross Section

Abstract

We study the process e+e- -> pi+pi-pi+pi-gamma, with a photon emitted from the initial-state electron or positron, using 454.3 fb^-1 of data collected with the BABAR detector at SLAC, corresponding to approximately 260,000 signal events. We use these data to extract the non-radiative sigma(e+e- ->pi+pi-pi+pi-) cross section in the energy range from 0.6 to 4.5 Gev. The total uncertainty of the cross section measurement in the peak region is less than 3%, higher in precision than the corresponding results obtained from energy scan data.

References in corpus (5)

• Measurement of sigma(e+ e- -> pi+ pi-) from threshold to 0.85 GeV^2 using Initial State Radiation with the KLOE detector
• Hadron Production via e+e- Collisions with Initial State Radiation
• Narrow resonances studies with the radiative return method
• Study of the process e+e- -> omega pi0 in the phi-meson mass region with the KLOE detector
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