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High Energy Physics - Lattice

arXiv:hep-lat/0501024 (hep-lat)
[Submitted on 26 Jan 2005 (v1), last revised 4 Feb 2005 (this version, v3)]

Title:Baryon masses, chiral extrapolations, and all that

Authors:Matthias Frink, Ulf-G. Meißner, Ilka Scheller
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Abstract: 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. The pion-nucleon sigma term in SU(3) is also investigated, we find \sigma_{\pi N} (0) = 50.7 - 53.7 MeV.
Comments: 20 pp, 7 figs (13 eps files); more lattice data included, discussion sharpened, references added, main conclusions unchanged
Subjects: High Energy Physics - Lattice (hep-lat); High Energy Physics - Phenomenology (hep-ph); Nuclear Theory (nucl-th)
Report number: HISKP-TH-05/01, FZJ-IKP(TH)-2005-01
Cite as: arXiv:hep-lat/0501024
  (or arXiv:hep-lat/0501024v3 for this version)
  https://doi.org/10.48550/arXiv.hep-lat/0501024
Journal reference: Eur.Phys.J. A24 (2005) 395-409
Related DOI: https://doi.org/10.1140/epja/i2005-10063-9

Submission history

From: Ulf-G. Meißner [view email]
[v1] Wed, 26 Jan 2005 16:17:12 UTC (53 KB)
[v2] Thu, 27 Jan 2005 11:36:52 UTC (53 KB)
[v3] Fri, 4 Feb 2005 09:07:43 UTC (55 KB)
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