Determination of $Λ_{\overline{MS}}$ from quenched and $N_f = 2$ dynamical QCD

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Booth, S, Göckeler, M, Horsley, R, Irving, AC, Joo, B, Pickles, S, Pleiter, D, Rakow, PEL ORCID: 0000-0003-4486-2158, Schierholz, G, Sroczynski, Z et al (show 1 more authors) and Stüben, H (2001) Determination of $Λ_{\overline{MS}}$ from quenched and $N_f = 2$ dynamical QCD. Phys.Lett.B, 519 (3-4). pp. 229-237.

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Abstract

The scale parameter $\Lambda_{\overline{MS}}$ is computed on the lattice in the quenched approximation and for $N_f = 2$ flavors of light dynamical quarks. The dynamical calculation is done with non-perturbatively $O(a)$ improved Wilson fermions. In the continuum limit we obtain $\Lambda_{\overline{MS}}^{N_f=0} = 243(1)(10)$ MeV and $\Lambda_{\overline{MS}}^{N_f=2} = 217(16)(11)$ MeV, respectively.

Item Type:	Article
Additional Information:	16 pages, 6 figures. Minor changes. Final version to be published in Phys. Lett. B
Uncontrolled Keywords:	hep-lat, hep-lat, hep-ph
Subjects:	?? QC ??
Divisions:	Faculty of Science and Engineering > School of Physical Sciences > Mathematical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	20 Aug 2008 09:30
Last Modified:	17 Dec 2022 01:14
DOI:	10.1016/s0370-2693(01)01103-0
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/587