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Pion and kaon electromagnetic form factors

Bijnens, Johan LU and Talavera, P (2002) In Journal of High Energy Physics
Abstract
We study the electromagnetic form factor of the pion and kaons at low-energies with the use of Chiral Perturbation Theory. The analysis is performed within the three flavour framework and at next-to-next-to-leading order. We explain carefully all the relevant consistency checks on the expressions, present full analytical results for the pion form factor and describe all the assumptions in the analysis. From the phenomenological point of view we make use of our expression and the available data to obtain the charge radius of the pion obtaining [r(2)](V)(pi) = (0.452 +/- 0.013)fm(2), as well as the low-energy constant L-9(r) (m(rho)) = (5.93 +/- 0.43) x 10(3). We also obtain experimental values for 3 combinations of O(p(6)) constants.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
electromagnetic processes and, properties, chiral lagrangians, spontaneous symmetry breaking
in
Journal of High Energy Physics
issue
3
publisher
Springer
external identifiers
  • wos:000175277100046
  • scopus:23044465972
ISSN
1126-6708
DOI
10.1088/1126-6708/2002/03/046
language
English
LU publication?
yes
id
74a5c185-6f36-4336-ac4e-0098fbd1819f (old id 339540)
date added to LUP
2007-08-10 09:25:42
date last changed
2017-01-01 05:00:32
@article{74a5c185-6f36-4336-ac4e-0098fbd1819f,
  abstract     = {We study the electromagnetic form factor of the pion and kaons at low-energies with the use of Chiral Perturbation Theory. The analysis is performed within the three flavour framework and at next-to-next-to-leading order. We explain carefully all the relevant consistency checks on the expressions, present full analytical results for the pion form factor and describe all the assumptions in the analysis. From the phenomenological point of view we make use of our expression and the available data to obtain the charge radius of the pion obtaining [r(2)](V)(pi) = (0.452 +/- 0.013)fm(2), as well as the low-energy constant L-9(r) (m(rho)) = (5.93 +/- 0.43) x 10(3). We also obtain experimental values for 3 combinations of O(p(6)) constants.},
  articleno    = {023},
  author       = {Bijnens, Johan and Talavera, P},
  issn         = {1126-6708},
  keyword      = {electromagnetic processes and,properties,chiral lagrangians,spontaneous symmetry breaking},
  language     = {eng},
  number       = {3},
  publisher    = {Springer},
  series       = {Journal of High Energy Physics},
  title        = {Pion and kaon electromagnetic form factors},
  url          = {http://dx.doi.org/10.1088/1126-6708/2002/03/046},
  year         = {2002},
}