Research articles

search articles

My Pages

Stat

Members: 3645
Articles: 2'504'928
Articles rated: 2609

25 April 2024

» arxiv » 1307.6227

Article overview

The electric and magnetic form factors of the proton
A1 Collaboration ; J. C. Bernauer ; M. O. Distler ; J. Friedrich ; Th. Walcher ; P. Achenbach C. Ayerbe Gayoso ; R. Böhm ; L. Debenjak ; L. Doria ; A. Esser ; H. Fonvieille ; M. Gómez Rodrígues de la Paz ; J. M. Friedrich ; M. Makek ; H. Merkel ; D. G. Middleton ; U. Müller ; L. Nungesser ; J. Pochodzalla ; M. Potokar ; S. Sánchez Majos ; B. S. Schlimme ; S. Širca ; M. Weinriefer ;
Date:	23 Jul 2013
Abstract:	The paper describes a precise measurement of electron scattering off the proton at momentum transfers of $0.003 lesssim Q^2 lesssim 1$ GeV$^2$. The average point-to-point error of the cross sections in this experiment is $sim$ 0.37%. These data are used for a coherent new analysis together with all world data of unpolarized and polarized electron scattering from the very smallest to the highest momentum transfers so far measured. The extracted electric and magnetic form factors provide new insight into their exact shape, deviating from the classical dipole form, and of structure on top of this gross shape. The data reaching very low $Q^2$ values are used for a new determination of the electric and magnetic radii. An empirical determination of the Two-Photon-Exchange (TPE) correction is presented. The implications of this correction on the radii and the question of a directly visible signal of the pion cloud are addressed.
Source:	arXiv, 1307.6227
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap