Measurement of the Two-Photon Exchange Contribution to the Elastic e±p Scattering Cross Sections at the VEPP-3 Storage Ring; Physical Review Letters; Vol. 114, iss. 6

Measurement of the Two-Photon Exchange Contribution to the Elastic e±p Scattering Cross Sections at the VEPP-3 Storage Ring; Physical Review Letters; Vol. 114, iss. 6

Dettagli Bibliografici
Parent link:	Physical Review Letters: Scientific Journal.— , 1958- Vol. 114, iss. 6.— 2015.— [062005, 5 p.]
Ente Autore:	Национальный исследовательский Томский политехнический университет (ТПУ) Физико-технический институт (ФТИ) Научный отдел (НО)
Altri autori:	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
Riassunto:	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
Lingua:	inglese
Pubblicazione:	2015
Soggetti:	электронный ресурс труды учёных ТПУ
Accesso online:	http://dx.doi.org/10.1103/PhysRevLett.114.062005
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=645040

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