| Issue |
EPJ Web Conf.
Volume 138, 2017
XXIII International Baldin Seminar on High Energy Physics Problems Relativistic Nuclear Physics and Quantum Chromodynamics (Baldin ISHEPP XXIII)
|
|
|---|---|---|
| Article Number | 01003 | |
| Number of page(s) | 10 | |
| Section | Plenary Session | |
| DOI | https://doi.org/10.1051/epjconf/201713801003 | |
| Published online | 27 March 2017 | |
https://doi.org/10.1051/epjconf/201713801003
Highlights in the hadron electromagnetic structure
1 IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette Cedex, France
2 Dipartimento di Fisica e Geologia, and INFN Sezione di Perugia, 06123 Perugia, Italy
3 Dipartimento di Ingegneria dell’Informazione, Università di Brescia and Istituto Nazionale di Fisica Nucleare, via A. Bassi 6, 27100 Pavia, Italy
* e-mail: egle.tomasi@cea.fr
Published online: 27 March 2017
In frame of a general view of proton electromagnetic form factors, two recent findings related to reanalyses of data are presented. Recent experiments in the scattering and in the annihilation region provided us with more precise data and/or extending the kinematical region, allowing a deeper analysis and a common view of these fundamental quantities. We will discuss two issues: the discrepancy between the form factors extracted from unpolarized and polarized ep elastic scattering experiments, in connection with the commonly used dipole parametrization; peculiar oscillations in e+e− → p̄p(γ) annihilation cross section, that become periodical when plotted as a function of the 3-momentum of the relative motion of the final proton and antiproton, after subtraction of a smooth function.
© The Authors, published by EDP Sciences, 2017
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.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.