Pion decay constant, ZA and chiral log from overlap fermions

Shao Jing Dong, T. Draper, I. Horváth, F. X. Lee, J. B. Zhang

Research output: Contribution to journalArticlepeer-review

Abstract

We report our calculation of the pion decay constant fπ, the axial renormalization constant ZA, and the quenched chiral logarithms from the overlap fermions. The calculation is done on a quenched 204 lattice at a = 0.148 fm using tree level tadpole improved gauge action. The smallest pion mass we reach is about 280 MeV. The lattice size is about 4 times the Compton wavelength of the lowest mass pion.

Original languageEnglish
Pages (from-to)341-343
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
Volume106-107
DOIs
StatePublished - Mar 2002

Bibliographical note

Funding Information:
extends to a fairly long distance in the time separation. We obtain the axial renormalization constant, ZA = 0.1589(4), being fairly independent of moa. The renormalized f~ gives a = 0.148fm and the physical lattice size is about 4 times the Compton wavelength of the lowest mass pion. We have observed quenched chiral log in the fR data set, with 6 about 0.4. This work is partially supported by DOE Grants DE-FG05-84ER40154 and DE-FG02-95ER40907.

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Pion decay constant, ZA and chiral log from overlap fermions'. Together they form a unique fingerprint.

Cite this