Quark mass dependence of nucleon observables and lattice QCD

M. Procura, B. U. Musch, T. R. Hemmert, W. Weise

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

We present an updated analysis of the quark mass dependence of the nucleon mass MN and nucleon axial-vector coupling gA, comparing different formulations of SU(2) Baryon Chiral Effective Field Theory, with and without explicit Δ (1232) degrees of freedom. We discuss the outcome of the corresponding interpolations between lattice QCD data and the physical values for these two nucleon observables. It turns out that in order to obtain successful interpolating functions at one-loop order, the inclusion of explicit Δ (1232) degrees of freedom is not decisive for the nucleon mass but crucial for gA. A chiral extrapolation of recent lattice results by the LHP collaboration is also shown.

Original languageEnglish
Title of host publicationPARTICLES AND NUCLEI
Subtitle of host publicationSeventeenth Internatinal Conference on Particles and Nuclei
Pages240-242
Number of pages3
DOIs
StatePublished - 2006
EventPARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei - Santa Fe, NM, United States
Duration: 23 Oct 200530 Oct 2005

Publication series

NameAIP Conference Proceedings
Volume842
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferencePARTICLES AND NUCLEI: Seventeenth Internatinal Conference on Particles and Nuclei
Country/TerritoryUnited States
CitySanta Fe, NM
Period23/10/0530/10/05

Keywords

  • Chiral effective field theories
  • Lattice QCD

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