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


BABAR Collaboration; Snoek, H (2012). Initial-State Radiation Measurement of the e+e−−>π+π−π+π− Cross Section. Physical Review D (Particles, Fields, Gravitation and Cosmology), 85(11):112009.

Abstract

We study the process e+e-→π+π-π+π-γ, 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+e-→π+π-π+π-) 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.

Abstract

We study the process e+e-→π+π-π+π-γ, 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+e-→π+π-π+π-) 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.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2012
Deposited On:05 Mar 2013 09:59
Last Modified:07 Dec 2017 20:17
Publisher:American Physical Society
ISSN:1550-2368
Publisher DOI:https://doi.org/10.1103/PhysRevD.85.112009

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