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Frink, M. [Author]; Meissner, U.G. [Author]; Scheller, I. [Author]

Baryon masses, chiral extrapolations, and all that

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  • Media type: E-Article
  • Title: Baryon masses, chiral extrapolations, and all that
  • Contributor: Frink, M. [Author]; Meissner, U.G. [Author]; Scheller, I. [Author]
  • imprint: Springer, 2005
  • Published in: The European physical journal / A 24, 395 - 409 (2005). doi:10.1140/epja/i2005-10063-9
  • Language: English
  • DOI: https://doi.org/10.1140/epja/i2005-10063-9
  • ISSN: 1434-6001
  • Keywords: pi nucleon: sigma term ; numerical calculations ; baryon: octet ; baryon: mass ; regularization ; perturbation theory: chiral
  • Origination:
  • Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Description: We calculate the baryon octet masses to fourth order in chiral perturbation theory employing dimensional and cut-off regularization. We analyze the pion and kaon mass dependences of the baryon masses based on the MILC data. We show that chiral perturbation theory gives stable chiral extrapolation functions for pion (kaon) masses below 550 (600) MeV. For the pion-nucleon sigma term we find sigma(pi N) (0) = 39.5.46.7 MeV.
  • Access State: Open Access