Computing K and D meson masses with Nf=2+1+1 twisted mass lattice QCD

被引：54

作者：

Baron, Remi ^{[2
]}

Boucaud, Philippe ^{[3
,4
]}

Carbonell, Jaume ^{[5
]}

Drach, Vincent ^{[5
]}

Farchioni, Federico ^{[6
]}

Herdoiza, Gregorio ^{[7
]}

Jansen, Karl ^{[7
]}

Michael, Chris ^{[8
]}

Montvay, Istvan ^{[9
]}

Pallante, Elisabetta ^{[10
]}

Pene, Olivier ^{[3
,4
]}

Reker, Siebren ^{[10
]}

Urbach, Carsten ^{[11
]}

Wagner, Marc ^{[1
]}

Wenger, Urs ^{[12
]}

机构：

[1] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[2] CEA, Ctr Saclay, IRFU Serv Phys Nucl, F-91191 Gif Sur Yvette, France

[3] Univ Paris 11, Ctr Orsay, F-91405 Orsay, France

[4] CNRS, Theoret Phys Lab, F-91405 Orsay, France

[5] Lab Phys Subatom & Cosmol, F-38026 Grenoble, France

[6] Univ Munster, Inst Theoret Phys, D-48149 Munster, Germany

[7] DESY, NIC, D-15738 Zeuthen, Germany

[8] Univ Liverpool, Div Theoret Phys, Liverpool L69 3BX, Merseyside, England

[9] Deutsch Elektronen Synchrotron DESY, D-22603 Hamburg, Germany

[10] Univ Groningen, Ctr Theoret Phys, NL-9747 AG Groningen, Netherlands

[11] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany

[12] Univ Bern, Inst Theoret Phys, Albert Einstein Ctr Fundamental Phys, CH-3012 Bern, Switzerland

来源：

COMPUTER PHYSICS COMMUNICATIONS | 2011年 / 182卷 / 02期

关键词：

Lattice QCD; Twisted mass; 2+1+1 dynamical quark flavors; PHASE-STRUCTURE; WILSON QUARKS; LIGHT QUARKS; FLAVORS; FERMIONS; SIMULATION;

D O I：

10.1016/j.cpc.2010.10.004

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We discuss the computation of the mass of the K and D mesons within the framework of N-f = 2 + 1 + 1 twisted mass lattice QCD from a technical point of view. These quantities are essential, already at the level of generating gauge configurations, being obvious candidates to tune the strange and charm quark masses to their physical values. In particular, we address the problems related to the twisted mass flavor and parity symmetry breaking, which arise when considering a non-degenerate (c, s) doublet. We propose and verify the consistency of three methods to extract the K and D meson masses in this framework. (c) 2010 Elsevier By. All rights reserved.

引用

页码：299 / 316

页数：18

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