Two-photon exchange contribution in elastic electron-proton scattering, experiment at the VEPP-3 storage ring

D. M. Nikolenko, J. Arrington, L. M. Barkov, V. F. Dmitriev, V. V. Gauzshtein, R. A. Golovin, A. V. Gramolin, R. J. Holt, V. V. Kaminsky, B. A. Lazarenko, S. I. Mishnev, N. Yu Muchnoi, V. V. Neufeld, I. A. Rachek, R. Sh Sadykov, Yu V. Shestakov, V. N. Stibunov, D. K. Toporkov, H. De Vries, S. A. ZevakovV. N. Zhilich

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

We describe a precise measurement of the ratio of the (e + p) to (e - p) elastic scattering cross sections. This comparison is sensitive to the effect of two-photon exchange contributions which may be the cause for inconsistent extractions of the proton form factors obtained using different methods. The experiment was performed at storage ring VEPP-3, Novosibirsk at energies of positron/electron beams of 1.0 and 1.6 GeV with electron/positron scattering angles θ = 65÷105° for the first case and 15÷25° and 55÷75° for the second case. Details of the experiment and the preliminary results are presented.

Original languageEnglish
Title of host publicationEPJ Web of Conferences
Volume66
DOIs
Publication statusPublished - 2014
Event2013 International Nuclear Physics Conference, INPC 2013 - Firenze, Italy
Duration: 2 Jun 20137 Jun 2013

Other

Other2013 International Nuclear Physics Conference, INPC 2013
CountryItaly
CityFirenze
Period2.6.137.6.13

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Nikolenko, D. M., Arrington, J., Barkov, L. M., Dmitriev, V. F., Gauzshtein, V. V., Golovin, R. A., ... Zhilich, V. N. (2014). Two-photon exchange contribution in elastic electron-proton scattering, experiment at the VEPP-3 storage ring. In EPJ Web of Conferences (Vol. 66). [06002] https://doi.org/10.1051/epjconf/20146606002