You can manage bookmarks using lists, please log in to your user account for this.
Media type:
E-Article
Title:
On the $\pi\pi$ π π continuum in the nucleon form factors and the proton radius puzzle
Contributor:
Hoferichter, M.
[Author];
Kubis, B.
[Author];
Ruiz de Elvira, J.
[Author];
Hammer, H. -W.
[Author];
Meissner, Ulf-G.
[Author]
imprint:
Springer, 2016
Published in:The European physical journal / A 52(11), 331 (2016). doi:10.1140/epja/i2016-16331-7
Language:
English
DOI:
https://doi.org/10.1140/epja/i2016-16331-7
ISSN:
1431-5831;
1434-6001;
1434-601X
Origination:
Footnote:
Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
Description:
We present an improved determination of the ππ continuum contribution to the isovector spectral functions of the nucleon electromagnetic form factors. Our analysis includes the most up-to-date results for the ππ→N¯N partial waves extracted from Roy-Steiner equations, consistent input for the pion vector form factor, and a thorough discussion of isospin-violating effects and uncertainty estimates. As an application, we consider the ππ contribution to the isovector electric and magnetic radii by means of sum rules, which, in combination with the accurately known neutron electric radius, are found to slightly prefer a small proton charge radius.