Precise Measurement of the e(+)e(-)->pi(+)pi(-)(gamma) Cross Section with the Initial State Radiation Method at BABAR
Author(s)
Dujmic, Denis; Henderson, Shawn Wesley; Sciolla, Gabriella; Yamamoto, R. K.; Zhao, M.; Cowan, Ray F; Fisher, Peter H; Spitznagel, Michael A; ... Show more Show less
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A precise measurement of the cross section of the process e[superscript +]e[superscript -]→π[superscript +]π[superscript -](γ) from threshold to an energy of 3 GeV is obtained with the initial state radiation (ISR) method using 232 fb[superscript -1] of data collected with the BABAR detector at e[superscript +]e[superscript -] center-of-mass energies near 10.6 GeV. The ISR luminosity is determined from a study of the leptonic process e[superscript +]e[superscript -]→μ[superscript +]μ[superscript -]γ(γ). The leading-order hadronic contribution to the muon magnetic anomaly calculated using the ππ cross section measured from threshold to 1.8 GeV is (514.1±2.2(stat)±3.1(syst))×10[superscript -10].
Date issued
2009-12Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review Letters
Publisher
American Physical Society
Citation
Aubert, B. et al. "Precise Measurement of the e(+)e(-)->pi(+)pi(-)(gamma) Cross Section with the Initial State Radiation Method at BABAR." Physical Review Letters 103.23 (2009): 231801. © 2009 The American Physical Society
Version: Final published version
ISSN
0031-9007