EPJ Web Conf.
Volume 218, 2019The 11th International Workshop on e+e− Collisions from Phi to Psi (PhiPsi 2017)
|Number of page(s)||6|
|Section||Baryon Form Factors and Proton Radius|
|Published online||18 October 2019|
Radiative corrections to elastic-electron proton scattering and uncertainty in proton charge radius
Bogoliubov Laboratory for Theoretical Physics, JINR, Dubna 141980, Russia
2 Dubna State University, Dubna 141980, Russia
* e-mail: firstname.lastname@example.org
Published online: 18 October 2019
Higher-order QED radiative corrections to elastic electron-proton scattering are discussed. It is shown that they are relevant for high-precision experiments on proton form factor measurements. Analytic result are obtained for next-to-leading second order corrections to the electron line. Light pair corrections are taken into account. The role of the hadronic contribution to vacuum polarization is discussed. Numerical results are given for the conditions of the experiment on proton form factors performed by A1 Collaboration. Preliminary results are also shown for the set-up with reconstruction of momentum transfer from the recoil proton momentum.
© The Authors, published by EDP Sciences, 2019
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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