Pion decay constant, ZA and chiral log from overlap fermions

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

doi:10.1016/S0920-5632(01)01708-X

Pion decay constant, Z_A and chiral log from overlap fermions

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

Physics And Astronomy

Producción científica: Article › revisión exhaustiva

Resumen

We report our calculation of the pion decay constant f_π, the axial renormalization constant Z_A, 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.

Idioma original	English
Páginas (desde-hasta)	341-343
Número de páginas	3
Publicación	Nuclear Physics B - Proceedings Supplements
Volumen	106-107
DOI	https://doi.org/10.1016/S0920-5632(01)01708-X
Estado	Published - mar 2002

Nota bibliográfica

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.

Financiación

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.

Financiadores	Número del financiador
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory	DE-FG05-84ER40154, DE-FG02-95ER40907

ASJC Scopus subject areas

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

Acceder al documento

10.1016/S0920-5632(01)01708-X

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title = "Pion decay constant, ZA and chiral log from overlap fermions",

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.",

author = "Dong, \{Shao Jing\} and T. Draper and I. Horv{\'a}th and Lee, \{F. X.\} and Zhang, \{J. B.\}",

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\textasciitilde{} 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.",

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month = mar,

doi = "10.1016/S0920-5632(01)01708-X",

language = "English",

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AU - Horváth, I.

AU - Lee, F. X.

AU - Zhang, J. B.

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AB - 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.

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