| Issue |
EPJ Web Conf.
Volume 218, 2019
The 11th International Workshop on e+e− Collisions from Phi to Psi (PhiPsi 2017)
|
|
|---|---|---|
| Article Number | 04004 | |
| Number of page(s) | 6 | |
| Section | Baryon Form Factors and Proton Radius | |
| DOI | https://doi.org/10.1051/epjconf/201921804004 | |
| Published online | 18 October 2019 | |
https://doi.org/10.1051/epjconf/201921804004
Radiative corrections to elastic-electron proton scattering and uncertainty in proton charge radius
1
Bogoliubov Laboratory for Theoretical Physics, JINR, Dubna 141980, Russia
2
Dubna State University, Dubna 141980, Russia
* e-mail: arbuzov@theor.jinr.ru
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
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