Gockeler, M and Horsley, R and Irving, AC and Pleiter, D and Rakow, PEL and Schierholz, G and Stuben, H (2006) Determination of the Lambda parameter from full lattice QCD. PHYSICAL REVIEW D, 73 (1): 014513. ISSN 1550-7998,
Full text not available from this repository.Abstract
We present a determination of the QCD parameter Lambda in the quenched approximation (n(f) = 0) and for two flavors (n(f) = 2) of light dynamical quarks. The calculations are performed on the lattice using O(a) improved Wilson fermions and include taking the continuum limit. We find Lambda(nf = 0)((MS) over bar) = 259(1)(19) MeV and Lambda(nf = 2)((MS) over bar) = 261(17)(26) MeV, using r(0) = 0.467 fm to set the scale. Extrapolating our results to five flavors, we obtain for the running coupling constant at the mass of the Z boson alpha(s)((MS) over bar)(m(z)) = 0.112(1)(2).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | STRONG-COUPLING CONSTANT; WILSON FERMIONS; BETA-FUNCTION; QUANTUM CHROMODYNAMICS; GAUGE-THEORIES; QUARK MASSES; ALPHA(S); IMPROVEMENT; RENORMALIZATION; COMPUTATION; |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 Mar 2021 09:36 |
| Last Modified: | 03 Mar 2021 09:36 |
| URI: | https://pred.uni-regensburg.de/id/eprint/35266 |
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