Published February 2005 | Version v1
Journal article Metadata-only

Twisted mass quarks and the phase structure of lattice QCD

Creators

  • 1. Universitaet Muenster, Institut fuer Theoretische Physik, Muenster (Germany)
  • 2. Universita di Milano ''Bicocca'', INFN, Sezione di Milano and Dipartimento di Fisica, Milano (Italy)
  • 3. NIC/DESY Zeuthen, Zeuthen (Germany)
  • 4. Deutsches Elektronen-Synchrotron DESY, Hamburg (Germany)
  • 5. Universita di Roma ''Tor Vergata'' and INFN, Dipartimento di Fisica, Roma (Italy)
  • 6. Freie Universitaet Berlin, Institut fuer Theoretische Physik, Berlin (Germany)

Description

The phase structure of zero temperature twisted mass lattice QCD is investigated. We find strong metastabilities in the plaquette observable in correspondence of which the untwisted quark mass assumes positive or negative values. We provide interpretations of this phenomenon in terms of chiral symmetry breaking and the effective potential model of Sharpe and Singleton. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjc/s2004-02078-9

Additional details

Identifiers

DOI
10.1140/epjc/s2004-02078-9;

Publishing Information

Journal Title
European Physical Journal. C
Journal Volume
39
Journal Issue
4
Journal Page Range
p. 421-433
ISSN
1434-6044

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
36026984
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ALGORITHMS; CHIRAL SYMMETRY; COMPUTERIZED SIMULATION; LATTICE FIELD THEORY; PHASE DIAGRAMS; PIONS; POTENTIALS; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS; SYMMETRY BREAKING; TEMPERATURE ZERO K
Descriptors DEC
BOSONS; CONSTRUCTIVE FIELD THEORY; DIAGRAMS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRONS; INFORMATION; MASS; MATHEMATICAL LOGIC; MESONS; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SIMULATION; SYMMETRY