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Lacour, A. [Author]; Kubis, B. [Author]; Meissner, U.G. [Author]

Hyperon decay form factors in chiral perturbation theory

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  • Media type: E-Article
  • Title: Hyperon decay form factors in chiral perturbation theory
  • Contributor: Lacour, A. [Author]; Kubis, B. [Author]; Meissner, U.G. [Author]
  • imprint: Springer, 2007
  • Published in: Journal of high energy physics 2007, 083 (2007). doi:10.1088/1126-6708/2007/10/083
  • Language: English
  • DOI: https://doi.org/10.1088/1126-6708/2007/10/083
  • ISSN: 1126-6708
  • Keywords: low-energy theorem ; weak decays ; Chiral Lagrangians ; form factor: vector ; hyperon: semileptonic decay ; effective Lagrangian ; correction: higher-order ; perturbation theory: chiral ; numerical calculations ; Quark masses and SM parameters ; symmetry breaking: SU(3) ; QCD ; baryon: magnetic moment
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: We present a complete calculation of the SU(3)-breaking corrections to the hyperon vector form factors up to O(p(4)) in covariant baryon chiral perturbation theory. Partial higher-order contributions are obtained, and we discuss chiral extrapolations of the vector form factor at zero momentum transfer. In addition we derive low-energy theorems for the subleading moments in hyperon decays, the weak Dirac radii and the weak anomalous magnetic moments, up to O(p(4)).
  • Access State: Open Access