The determination of αs from lattice QCD with 2+1 flavors of dynamical quarks

C. Davies; A. Gray; M. Alford; E. Follana; J. Hein; P. Lepage; Q. Mason; M. Nobes; J. Shigemitsu; H. Trottier; M. Wingate

doi:10.1016/S0920-5632(03)01631-1

The determination of α_s from lattice QCD with 2+1 flavors of dynamical quarks

C. Davies
, A. Gray
, M. Alford
, E. Follana
, J. Hein
, P. Lepage
, Q. Mason
, M. Nobes
, J. Shigemitsu
, H. Trottier
, M. Wingate

Department of Physics

Research output: Contribution to journal › Review article › peer-review

18 Scopus citations

Abstract

We describe the first lattice determination of the strong coupling constant with 3 flavors of dynamical quarks. The method follows previous analyses in using a perturbative expansion for the plaquette and Upsilon spectroscopy to set the scale. Using dynamical configurations from the MILC collaboration with 2+1 flavors of dynamical quarks we are able to avoid previous problems of haivng to extrapolate to 3 light flavors from 0 and 2. Our result agrees with our previous work: α_s^MS(Mz) = 0.121(3).

Original language	English
Pages (from-to)	595-597
Number of pages	3
Journal	Nuclear Physics B (Proceedings Supplements)
Volume	119
DOIs	https://doi.org/10.1016/S0920-5632(03)01631-1
State	Published - May 2003

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title = "The determination of αs from lattice QCD with 2+1 flavors of dynamical quarks",

abstract = "We describe the first lattice determination of the strong coupling constant with 3 flavors of dynamical quarks. The method follows previous analyses in using a perturbative expansion for the plaquette and Upsilon spectroscopy to set the scale. Using dynamical configurations from the MILC collaboration with 2+1 flavors of dynamical quarks we are able to avoid previous problems of haivng to extrapolate to 3 light flavors from 0 and 2. Our result agrees with our previous work: αsMS(Mz) = 0.121(3).",

author = "C. Davies and A. Gray and M. Alford and E. Follana and J. Hein and P. Lepage and Q. Mason and M. Nobes and J. Shigemitsu and H. Trottier and M. Wingate",

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doi = "10.1016/S0920-5632(03)01631-1",

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T1 - The determination of αs from lattice QCD with 2+1 flavors of dynamical quarks

AU - Davies, C.

AU - Gray, A.

AU - Alford, M.

AU - Follana, E.

AU - Hein, J.

AU - Lepage, P.

AU - Mason, Q.

AU - Nobes, M.

AU - Shigemitsu, J.

AU - Trottier, H.

AU - Wingate, M.

PY - 2003/5

Y1 - 2003/5

N2 - We describe the first lattice determination of the strong coupling constant with 3 flavors of dynamical quarks. The method follows previous analyses in using a perturbative expansion for the plaquette and Upsilon spectroscopy to set the scale. Using dynamical configurations from the MILC collaboration with 2+1 flavors of dynamical quarks we are able to avoid previous problems of haivng to extrapolate to 3 light flavors from 0 and 2. Our result agrees with our previous work: αsMS(Mz) = 0.121(3).

AB - We describe the first lattice determination of the strong coupling constant with 3 flavors of dynamical quarks. The method follows previous analyses in using a perturbative expansion for the plaquette and Upsilon spectroscopy to set the scale. Using dynamical configurations from the MILC collaboration with 2+1 flavors of dynamical quarks we are able to avoid previous problems of haivng to extrapolate to 3 light flavors from 0 and 2. Our result agrees with our previous work: αsMS(Mz) = 0.121(3).

UR - https://www.scopus.com/pages/publications/0037948855

U2 - 10.1016/S0920-5632(03)01631-1

DO - 10.1016/S0920-5632(03)01631-1

M3 - Review article

AN - SCOPUS:0037948855

SN - 0920-5632

VL - 119

SP - 595

EP - 597

JO - Nuclear Physics B (Proceedings Supplements)

JF - Nuclear Physics B (Proceedings Supplements)

ER -

The determination of α_s from lattice QCD with 2+1 flavors of dynamical quarks

Abstract

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