Initial-state radiation measurement of the e[superscript +] e-→π[superscript +]π[superscript -]π[superscript +] π[superscript -] cross section
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Lees-2012-Initial-state radiation measurement of the.pdf
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Author(s)
Dujmic, Denis
Sciolla, Gabriella
Cowan, Ray F
Date Issued
June 2012
Journal
Physical Review D
Publisher
American Physical Society
Citation
Lees, J. et al. “Initial-state Radiation Measurement of the e[superscript +] e-→π[superscript +]π[superscript -]π[superscript +] π[superscript -] Cross Section.” Physical Review D 85.11 (2012). © 2012 American Physical Society
Version
Final published version
Abstract
We study the process e[superscript +] e-→π[superscript +]π[superscript -]π[superscript +] π[superscript -], 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 nonradiative σ(e[superscript +] e-→π[superscript +]π[superscript -]π[superscript +] π[superscript -]) 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.
MIT Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.85.112009
