Nonperturbative renormalisation of composite operators with overlap quarks

J. B. Zhang; D. B. Leinweber; K. F. Liu; A. G. Williams

doi:10.1016/S0920-5632(03)02484-8

Nonperturbative renormalisation of composite operators with overlap quarks

J. B. Zhang, D. B. Leinweber, K. F. Liu, A. G. Williams

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Abstract

We compute non-perturbatively the renormalisation constants of composite operators on a 16³ × 32 lattice with lattice spacing a = 0.093 fm for the overlap fermion action by using the regularisation independent (RI) scheme. The quenched gauge configurations are generated by tadpole improved plaquette plus rectangle action. We test the perturbative continuum relation Z_A = Z_V and Z_S = Z_P and find that they agree well above μ = 1.6 GeV. We also perform a Renormalisation Group analysis at the next-to-next-to-leading order and convert the renormalisation constants to the MS scheme.

Original language	English
Pages (from-to)	240-247
Number of pages	8
Journal	Nuclear Physics B - Proceedings Supplements
Volume	128
DOIs	https://doi.org/10.1016/S0920-5632(03)02484-8
State	Published - Feb 2004

Bibliographical note

Funding Information:
Support for this research from the Australian Research Council is gratefully acknowledged.

Funding

Support for this research from the Australian Research Council is gratefully acknowledged.

Funders	Funder number
Australian Research Council

ASJC Scopus subject areas

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

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title = "Nonperturbative renormalisation of composite operators with overlap quarks",

abstract = "We compute non-perturbatively the renormalisation constants of composite operators on a 163 × 32 lattice with lattice spacing a = 0.093 fm for the overlap fermion action by using the regularisation independent (RI) scheme. The quenched gauge configurations are generated by tadpole improved plaquette plus rectangle action. We test the perturbative continuum relation ZA = ZV and ZS = ZP and find that they agree well above μ = 1.6 GeV. We also perform a Renormalisation Group analysis at the next-to-next-to-leading order and convert the renormalisation constants to the MS scheme.",

author = "Zhang, {J. B.} and Leinweber, {D. B.} and Liu, {K. F.} and Williams, {A. G.}",

note = "Funding Information: Support for this research from the Australian Research Council is gratefully acknowledged.",

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doi = "10.1016/S0920-5632(03)02484-8",

language = "English",

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T1 - Nonperturbative renormalisation of composite operators with overlap quarks

AU - Zhang, J. B.

AU - Leinweber, D. B.

AU - Liu, K. F.

AU - Williams, A. G.

N1 - Funding Information: Support for this research from the Australian Research Council is gratefully acknowledged.

PY - 2004/2

Y1 - 2004/2

N2 - We compute non-perturbatively the renormalisation constants of composite operators on a 163 × 32 lattice with lattice spacing a = 0.093 fm for the overlap fermion action by using the regularisation independent (RI) scheme. The quenched gauge configurations are generated by tadpole improved plaquette plus rectangle action. We test the perturbative continuum relation ZA = ZV and ZS = ZP and find that they agree well above μ = 1.6 GeV. We also perform a Renormalisation Group analysis at the next-to-next-to-leading order and convert the renormalisation constants to the MS scheme.

AB - We compute non-perturbatively the renormalisation constants of composite operators on a 163 × 32 lattice with lattice spacing a = 0.093 fm for the overlap fermion action by using the regularisation independent (RI) scheme. The quenched gauge configurations are generated by tadpole improved plaquette plus rectangle action. We test the perturbative continuum relation ZA = ZV and ZS = ZP and find that they agree well above μ = 1.6 GeV. We also perform a Renormalisation Group analysis at the next-to-next-to-leading order and convert the renormalisation constants to the MS scheme.

UR - http://www.scopus.com/inward/record.url?scp=10744231708&partnerID=8YFLogxK

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DO - 10.1016/S0920-5632(03)02484-8

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AN - SCOPUS:10744231708

SN - 0920-5632

VL - 128

SP - 240

EP - 247

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

ER -

Nonperturbative renormalisation of composite operators with overlap quarks

Abstract

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