Measurement of the Two-Photon Exchange Contribution to the Elastic e±p Scattering Cross Sections at the VEPP-3 Storage Ring

Measurement of the Two-Photon Exchange Contribution to the Elastic e±p Scattering Cross Sections at the VEPP-3 Storage Ring

Bibliographic Details
Parent link:Physical Review Letters: Scientific Journal.— , 1958-
Vol. 114, iss. 6.— 2015.— [062005, 5 p.]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Научный отдел (НО)
Other Authors: Rachek I. A. Igor Anatoljevich, Arrington J. M., Dmitriev V. F. Vladimir Fedorovich, Gauzshteyn (Gauzshtein) V. V. Vyacheslav Valerjevich, Gerasimov R. E. Roman, Gramolin A. V. Alexander Valeryevich, Holt R. J., Kaminsky V. L. Valery Lyudvigovich, Lazarenko B. A. Boris Aleksandrovich, Mishnev S. I. Svyatoslav Igorevich, Muchnoy N. Yu. Nikolay Yurjevich, Neyfeld V. V. Vasily Viktorovich, Nikolenko D. M. Dmitry Mitrofanovich, Sadykov R. Sh. Rustam Shagitovich, Shestakov Yu. V. Yury Vladimirovich, Stibunov V. N. Viktor Nikolaevich, Toporkov D. K. Dmitry Konstantinovich, de Vries H. M., Zevakov S. A. Sergey Aleksandrovich, Zhilich V. N. Viktor Nikolaevich
Summary:Title screen
The ratio of the elastic e+p to e−p scattering cross sections has been measured precisely, allowing the determination of the two-photon exchange contribution to these processes. This neglected contribution is believed to be the cause of the discrepancy between the Rosenbluth and polarization transfer methods of measuring the proton electromagnetic form factors. The experiment was performed at the VEPP-3 storage ring at beam energies of 1.6 and 1.0 GeV and at lepton scattering angles between 15° and 105°. The data obtained show evidence of a significant two-photon exchange effect. The results are compared with several theoretical predictions.
Режим доступа: по договору с организацией-держателем ресурса
Published: 2015
Subjects:
электронный ресурс
труды учёных ТПУ
Online Access:http://dx.doi.org/10.1103/PhysRevLett.114.062005
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=645040

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