Precise measurement of the e+ e- to pi+ pi- (gamma) cross section with the Initial State Radiation method at BABAR

Abstract

A precise measurement of the cross section of the process e+ e- to pi+ pi- (gamma) from threshold to an energy of 3 GeV is obtained with the initial state radiation (ISR) method using 232 fb^-1 of data collected with the BABAR detector at e+ e- center-of-mass energies near 10.6 GeV. The ISR luminosity is determined from a study of the leptonic process e+ e- to mu+ mu- gamma (gamma). The leading-order hadronic contribution to the muon magnetic anomaly calculated using the pi pi cross section measured from threshold to 1.8 GeV is (514.1 +-2.2(stat} +-3.1(syst}) x 10^{-10}.

7 pages, 1 figure, 1 table, submitted to Physical Review Letters

References in corpus (13)

• Final Report of the Muon E821 Anomalous Magnetic Moment Measurement at BNL
• The BABAR Detector
• High-statistics measurement of the pion form factor in the rho-meson energy range with the CMD-2 detector
• Update of the e^+e^-\toπ^+π^- cross section measured by SND detector in the energy region 400<\sqrt{s}<1000 MeV
• Measurement of $\sigma (e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}\gamma (\gamma ))$ and the dipion contribution to the muon anomaly with the KLOE detector
• Measuring sigma(e^+e^- \to hadrons) using tagged photon
• Measurement of the e+e- -> pi+pi- cross section with the CMD-2 detector in the 370-520 MeV c.m. energy range
• Four Pion Final States with Tagged Photons at Electron Positron Colliders
• Measurement of the Pion Form Factor in the Energy Range 1.04-1.38 GeV with the CMD-2 Detector
• The radiative return at phi- and B-factories: FSR for muon pair production at next-to-leading order
• Hadronic Cross Sections in Electron-Positron Annihilation with Tagged Photon
• BHAGEN95: a Monte Carlo program for Bhabha scattering at LEP1/SLC and LEP2 energies
• Nucleon form factors, B-meson factories and the radiative return

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