The determination ofαs 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. Shigemit su, H. Trottier, M. Wingate

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

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 having to extrapolate to 3 light flavors from 0 and 2. Our results agree with our previous work: alpha_s_MSbar(M_Z) = 0.121(3).
Original languageEnglish
Pages (from-to)595–597
JournalNuclear Physics B - Proceedings Supplements
Volume119
Early online date13 Sept 2002
DOIs
Publication statusPublished - May 2003

Fingerprint

Dive into the research topics of 'The determination ofαs from lattice QCD with 2+1 flavors of dynamical quarks'. Together they form a unique fingerprint.

Cite this