The light quark masses from lattice gauge theory

Brian J. Gough; George M. Hockney; Aida X. El Khadra; Andreas S. Kronfeld; Paul B. Mackenzie; Bart P. Mertens; Tetsuya Onogi; James N. Simone

doi:10.1103/PhysRevLett.79.1622

The light quark masses from lattice gauge theory

Brian J. Gough, George M. Hockney, Aida X. El Khadra, Andreas S. Kronfeld, Paul B. Mackenzie, Bart P. Mertens, Tetsuya Onogi, James N. Simone

Physics

Research output: Contribution to journal › Article › peer-review

Abstract

We study the masses of the light quarks with lattice QCD. Most of the dependence on the lattice spacing a, observed previously with Wilson fermions, is removed by an O(a) corrected action. In the quenched approximation, we obtain a strange quark MS mass m_s(2GeV)=95(16) MeV, and an average of the up and down quark masses m_l(2GeV)=3.6(6) MeV. Correcting for quenching, the masses likely are 20% to 40% smaller: 54<m_s(2GeV)<92 MeV and 2.1<m_l(2GeV)<3.5 MeV. We argue that most lattice determinations are consistent with these low values, which are outside the range conventionally given.

Original language	English (US)
Pages (from-to)	1622-1625
Number of pages	4
Journal	Physical review letters
Volume	79
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.79.1622
State	Published - Jan 1 1997

ASJC Scopus subject areas

General Physics and Astronomy

Online availability

10.1103/PhysRevLett.79.1622

Library availability

Discover UIUC Full Text

Cite this

@article{481c118990e54cf990abad459bd0de30,

title = "The light quark masses from lattice gauge theory",

abstract = "We study the masses of the light quarks with lattice QCD. Most of the dependence on the lattice spacing a, observed previously with Wilson fermions, is removed by an O(a) corrected action. In the quenched approximation, we obtain a strange quark MS mass ms(2GeV)=95(16) MeV, and an average of the up and down quark masses ml(2GeV)=3.6(6) MeV. Correcting for quenching, the masses likely are 20% to 40% smaller: 54s(2GeV)<92 MeV and 2.1l(2GeV)<3.5 MeV. We argue that most lattice determinations are consistent with these low values, which are outside the range conventionally given.",

author = "Gough, {Brian J.} and Hockney, {George M.} and {El Khadra}, {Aida X.} and Kronfeld, {Andreas S.} and Mackenzie, {Paul B.} and Mertens, {Bart P.} and Tetsuya Onogi and Simone, {James N.}",

year = "1997",

month = jan,

day = "1",

doi = "10.1103/PhysRevLett.79.1622",

language = "English (US)",

volume = "79",

pages = "1622--1625",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "9",

}

TY - JOUR

T1 - The light quark masses from lattice gauge theory

AU - Gough, Brian J.

AU - Hockney, George M.

AU - El Khadra, Aida X.

AU - Kronfeld, Andreas S.

AU - Mackenzie, Paul B.

AU - Mertens, Bart P.

AU - Onogi, Tetsuya

AU - Simone, James N.

PY - 1997/1/1

Y1 - 1997/1/1

N2 - We study the masses of the light quarks with lattice QCD. Most of the dependence on the lattice spacing a, observed previously with Wilson fermions, is removed by an O(a) corrected action. In the quenched approximation, we obtain a strange quark MS mass ms(2GeV)=95(16) MeV, and an average of the up and down quark masses ml(2GeV)=3.6(6) MeV. Correcting for quenching, the masses likely are 20% to 40% smaller: 54s(2GeV)<92 MeV and 2.1l(2GeV)<3.5 MeV. We argue that most lattice determinations are consistent with these low values, which are outside the range conventionally given.

AB - We study the masses of the light quarks with lattice QCD. Most of the dependence on the lattice spacing a, observed previously with Wilson fermions, is removed by an O(a) corrected action. In the quenched approximation, we obtain a strange quark MS mass ms(2GeV)=95(16) MeV, and an average of the up and down quark masses ml(2GeV)=3.6(6) MeV. Correcting for quenching, the masses likely are 20% to 40% smaller: 54s(2GeV)<92 MeV and 2.1l(2GeV)<3.5 MeV. We argue that most lattice determinations are consistent with these low values, which are outside the range conventionally given.

UR - http://www.scopus.com/inward/record.url?scp=4244001494&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=4244001494&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.79.1622

DO - 10.1103/PhysRevLett.79.1622

M3 - Article

AN - SCOPUS:4244001494

SN - 0031-9007

VL - 79

SP - 1622

EP - 1625

JO - Physical review letters

JF - Physical review letters

IS - 9

ER -

The light quark masses from lattice gauge theory

Abstract

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this