Hadron masses and quark condensate from overlap fermions

K. F. Liu, S. J. Dong, F. X. Lee, J. B. Zhang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

We present results on hadron masses and quark condensate from Neuberger's overlap fermion. The scaling and chiral properties and finite volume effects from this new Dirac operator are studied. We find that the generalized Gell-Mann-Oakes-Renner relation is well satisfied down to the physical u and d quark mass range. We find that in the range of the lattice spacing we consider, the π and ρ masses at a fixed ℳπ/ℳρ ratio have weak O(a2) dependence.

Original languageEnglish
Pages (from-to)636-638
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
Volume83-84
Issue number1-3
DOIs
StatePublished - Mar 2000

Bibliographical note

Funding Information:
This work is partially supported by DOE Grants DE-FG05-84ER40154 and DE-FG02-95ER40907. We thank R. Edwards for sharing his experience in implementing the sign function solver. We also thank H. Neuberger for stimulating discussions.

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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