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Title: Precision measurement of the hadronic contribution to the muon anomalous magnetic moment

Abstract

We report on a precision measurement of the cross section for the reaction e+e- → π+π- in the mass range 0.30 < Mππ < 1.00 GeV / c2 with the initial state radiation (ISR) method, using 817 pb-1 of data at e+e- center-of-mass energies near 3.77 GeV and 586 pb-1 of data at e+e- center-of-mass energies near 4.17 GeV, collected with the CLEO-c detector at the CESR e+e- collider at Cornell University. The integrated cross sections in the range 0.30 < Mππ < 1.00 GeV / c2 for the process e+e- → π+π- are determined with a statistical uncertainty of 0.7% and a systematic uncertainty of 1.6%. The leading-order hadronic contribution to the muon anomalous magnetic moment calculated using these measured e+e- → π+π- cross sections in the range Mππ = 0.30 to 1.00 GeV / c2 is calculated to be ( 500.6 ± 3.6 (stat) ± 8.0 (syst)) × 10-10.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Northwestern Univ., Evanston, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1422865
Alternate Identifier(s):
OSTI ID: 1498950
Grant/Contract Number:  
FG02-87ER40344
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 97 Journal Issue: 3; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Xiao, T., Dobbs, S., Tomaradze, A., Seth, Kamal K., and Bonvicini, G. Precision measurement of the hadronic contribution to the muon anomalous magnetic moment. United States: N. p., 2018. Web. doi:10.1103/PhysRevD.97.032012.
Xiao, T., Dobbs, S., Tomaradze, A., Seth, Kamal K., & Bonvicini, G. Precision measurement of the hadronic contribution to the muon anomalous magnetic moment. United States. doi:10.1103/PhysRevD.97.032012.
Xiao, T., Dobbs, S., Tomaradze, A., Seth, Kamal K., and Bonvicini, G. Tue . "Precision measurement of the hadronic contribution to the muon anomalous magnetic moment". United States. doi:10.1103/PhysRevD.97.032012.
@article{osti_1422865,
title = {Precision measurement of the hadronic contribution to the muon anomalous magnetic moment},
author = {Xiao, T. and Dobbs, S. and Tomaradze, A. and Seth, Kamal K. and Bonvicini, G.},
abstractNote = {We report on a precision measurement of the cross section for the reaction e+e- → π+π- in the mass range 0.30 < Mππ < 1.00 GeV / c2 with the initial state radiation (ISR) method, using 817 pb-1 of data at e+e- center-of-mass energies near 3.77 GeV and 586 pb-1 of data at e+e- center-of-mass energies near 4.17 GeV, collected with the CLEO-c detector at the CESR e+e- collider at Cornell University. The integrated cross sections in the range 0.30 < Mππ < 1.00 GeV / c2 for the process e+e- → π+π- are determined with a statistical uncertainty of 0.7% and a systematic uncertainty of 1.6%. The leading-order hadronic contribution to the muon anomalous magnetic moment calculated using these measured e+e- → π+π- cross sections in the range Mππ = 0.30 to 1.00 GeV / c2 is calculated to be ( 500.6 ± 3.6 (stat) ± 8.0 (syst)) × 10-10.},
doi = {10.1103/PhysRevD.97.032012},
journal = {Physical Review D},
number = 3,
volume = 97,
place = {United States},
year = {2018},
month = {2}
}

Journal Article:
Free Publicly Available Full Text
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DOI: 10.1103/PhysRevD.97.032012

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