Abstract
We report on a precision measurement of the cross section for the reaction in the mass range with the initial state radiation (ISR) method, using of data at center-of-mass energies near 3.77 GeV and of data at center-of-mass energies near 4.17 GeV, collected with the CLEO-c detector at the CESR collider at Cornell University. The integrated cross sections in the range for the process 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 cross sections in the range to is calculated to be .
7 More- Received 11 December 2017
DOI:https://doi.org/10.1103/PhysRevD.97.032012
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.
Published by the American Physical Society