Published December 2005 | Version v1
Report Metadata-only

Nf=2 lattice QCD and chiral perturbation theory

Creators

  • 1. Humboldt-Univ., Berlin (Germany). Inst. fuer Physik
  • 2. Muenster Univ. (Germany). Inst. fuer Theoretische Physik

Description

By employing a twisted mass term, we compare recent results from lattice calculations of Nf=2 dynamical Wilson fermions with Wilson Chiral Perturbation Theory (WChPT). The final goal is to determine some combinations of Gasser-Leutwyler Low Energy Constants (LECs). A wide set of data with different lattice spacings (a ∝0.2-0.12 fm), different gauge actions (Wilson plaquette, DBW2) and different quark masses (down to the lowest pion mass allowed by lattice artifacts and including negative quark masses) provide a strong check of the applicability of WChPT in this regime and the scaling behaviours in the continuum limit. (orig.)

Availability note (English)

Available from TIB Hannover: RA 2999(05-235)

Additional details

Publishing Information

Imprint Pagination
8 p.
ISSN
0418-9833
Report number
DESY--05-235

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
37045202
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
ASYMPTOTIC SOLUTIONS; CHIRALITY; COMPUTERIZED SIMULATION; FLAVOR MODEL; GAUGE INVARIANCE; LATTICE FIELD THEORY; LATTICE PARAMETERS; PCAC THEORY; PERTURBATION THEORY; QUANTUM CHROMODYNAMICS; QUARKS; REST MASS; SCALING LAWS; UNIFIED GAUGE MODELS
Descriptors DEC
COMPOSITE MODELS; CONSTRUCTIVE FIELD THEORY; FERMIONS; FIELD THEORIES; INVARIANCE PRINCIPLES; MASS; MATHEMATICAL MODELS; MATHEMATICAL SOLUTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUARK MODEL; SIMULATION

Optional Information

Secondary number(s)
SFB-CPP--05-77; MS-TP--05-32; HEP-LAT--0511036