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Study of the process e(+) e(-) -> p(p)over-bar via initial state radiation at BESIII
Institute of High Energy Physics, Beijing 100049, People’s Republic of China.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Nuclear Physics.
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Number of Authors: 4782019 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 99, no 9, article id 092002Article in journal (Refereed) Published
Abstract [en]

The Born cross section for the process e(+) e(-)-> p (p) over bar is measured using the initial state radiation technique with an undetected photon. This analysis is based on datasets corresponding to an integrated luminosity of 75 fb(-1), collected with the BESIII detector at the BEPCII collider at center of mass energies between 3.773 and 4.600 GeV. The Born cross section for the process e(+) e(-)-> p (p) over bar and the proton effective form factor are determined in the p (p) over bar invariant mass range between 2.0 and 3.8 GeV/c(2) divided into 30 intervals. The proton form factor ratio (vertical bar G(E)vertical bar/vertical bar G(M)vertical bar) is measured in 3 intervals of the p (p ) over bar invariant mass between 2.0 and 3.0 GeV/c(2).

Place, publisher, year, edition, pages
2019. Vol. 99, no 9, article id 092002
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-387291DOI: 10.1103/PhysRevD.99.092002ISI: 000467734600001OAI: oai:DiVA.org:uu-387291DiVA, id: diva2:1329054
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note

For complete list of authors see http://dx.doi.org/10.1103/PhysRevD.99.092002

Available from: 2019-06-24 Created: 2019-06-24 Last updated: 2019-06-24Bibliographically approved

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Adlarson, PatrikBiernat, JacekIkegami Andersson, WalterJohansson, TordKupsc, AndrzejPapenbrock, MichaelPettersson, JoachimSchönning, KarinThorén, ViktorWolke, Magnus
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