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

Dades bibliogràfiques
Parent link:	Physical Review Letters: Scientific Journal.— , 1958- Vol. 114, iss. 6.— 2015.— [062005, 5 p.]
Altres autors:	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
Sumari:	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
Idioma:	anglès
Publicat:	2015
Matèries:	электронный ресурс труды учёных ТПУ
Accés en línia:	http://dx.doi.org/10.1103/PhysRevLett.114.062005
Format:	Electrònic Capítol de llibre
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=645040

Internet

http://dx.doi.org/10.1103/PhysRevLett.114.062005