Chiral corrections to baryon masses calculated within lattice QCD
Date
2000
Authors
Thomas, A.
Leinweber, D.
Tsushima, K.
Wright, S.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
Nuclear Physics A, 2000, vol.663&664, iss.1-2, pp.973c-976c
Statement of Responsibility
Anthony W. Thomas, Derek B. Leinweber, Kazuo Tsushima and Stewart V. Wright
Conference Name
15th International Conference on Particles and Nuclei (10 Jun 1999 - 16 Jun 1999 : UPPSALA, SWEDEN)
Abstract
Consideration of the analytic properties of pion-induced baryon self energies leads to new functional forms for the extrapolation of light baryon masses. These functional forms reproduce the leading non-analytic behavior of chiral perturbation theory, the correct non-analytic behavior at the $N \pi$ threshold and the appropriate heavy-quark limit. They involve only three unknown parameters, which may be obtained by fitting lattice QCD data. Recent dynamical fermion results from CP-PACS and UKQCD are extrapolated using these new functional forms. We also use these functions to probe the limit of applicability of chiral perturbation theory.
School/Discipline
Dissertation Note
Provenance
Description
Contribution to the Proceedings of the 15th Particles and Nuclei International Conference (PANIC 99), Uppsala, Sweden, June 10-16, 1999