This title appears in the Scientific Report :
2004
Please use the identifier:
http://dx.doi.org/10.1016/j.physletb.2003.12.073 in citations.
Please use the identifier: http://hdl.handle.net/2128/10689 in citations.
On the pion cloud of the nucleon
On the pion cloud of the nucleon
We evaluate the two-pion contribution to the nucleon electromagnetic form factors by use of dispersion analysis and chiral perturbation theory. After subtraction of the rho-meson component, we calculate the distributions of charge and magnetization in coordinate space, which can be interpreted as th...
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Personal Name(s): | Hammer, H.-W. |
---|---|
Drechsel, D. / Meissner, U.G. | |
Contributing Institute: |
Institut 3 (Theoretische Kernphysik); IKP-TH |
Published in: | Physics letters / B, 586 (2004) S. 291 - 296 |
Imprint: |
Amsterdam
North-Holland Publ.
2004
|
Physical Description: |
291 - 296 |
DOI: |
10.1016/j.physletb.2003.12.073 |
Document Type: |
Journal Article |
Research Program: |
Physik der Hadronen |
Series Title: |
Physics Letters B
586 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/10689 in citations.
We evaluate the two-pion contribution to the nucleon electromagnetic form factors by use of dispersion analysis and chiral perturbation theory. After subtraction of the rho-meson component, we calculate the distributions of charge and magnetization in coordinate space, which can be interpreted as the effects of the pion cloud. We find that the charge distribution of this pion cloud effect peaks at distances of about 0.3 fm. Furthermore, we calculate the contribution of the pion cloud to the isovector charges and radii of the nucleon. (C) 2004 Elsevier B.V. All rights reserved. |