# name
Precise measurement of the e+e−→π+π−(γ) cross section with the initial state radiation method at BABAR

# metadata.dc.description.abstract[].value
A precise measurement of the cross section of the process eþe  ! þ ðÞ 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 eþe  center-of-mass energies near 10.6 GeV. The ISR luminosity is determined from a study of the leptonic process eþe  ! þ ðÞ. The leading-order hadronic contribution to the muon magnetic anomaly calculated using the  cross section measured from threshold to 1.8 GeV is ð514:1 2:2ðstatÞ 3:1ðsystÞÞ 10 10.

# metadata.dc.source[].value
Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Precise measurement of the e+e−→π+π−(γ) cross section with the initial state radiation method at BABAR