Published October 1, 2008 | Version v1
Journal article Metadata-only

Exploring the meson spectrum with twisted mass lattice QCD

Creators

  • 1. Department of Physics, University of Regina, Regina, SK, S4S 0A2 (Canada)
  • 2. Department of Physics, University College of the Fraser Valley, Abbotsford, BC, V2S 7M8 (Canada)
  • 3. Department of Physics and Astronomy, York University, Toronto, ON, M3J 1P3 (Canada)
  • 4. TRIUMF, 4004 Wesbrook Mall, Vancouver, BC, V6T 2A3 (Canada)

Description

Numerical simulations with access to all possible meson quantum numbers JPC are presented using two-flavor (up and down) quenched twisted mass lattice QCD with three different lattice spacings and four different quark masses. The connection between the quantum numbers (P and C) and the symmetries of the twisted mass action is discussed, as is the connection between J and the lattice rotation group, for the 400 operators used in this study. Curve fitting of this large data set is accomplished by using an evolutionary fitting algorithm. Results are reported for conventional and exotic quantum numbers.

Additional details

Identifiers

DOI
10.1103/PhysRevD.78.074502;
arXiv
arXiv:0803.4141v2;

Publishing Information

Journal Title
Physical Review. D, Particles Fields
Journal Volume
78
Journal Issue
7
Journal Page Range
p. 074502-074502.22
ISSN
0556-2821
CODEN
PRVDAQ

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41004897
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ALGORITHMS; FLAVOR MODEL; LATTICE FIELD THEORY; MASS; MESON SPECTROSCOPY; MESONS; QUANTUM CHROMODYNAMICS; QUANTUM NUMBERS; QUARKS; ROTATION; SIMULATION; SYMMETRY
Descriptors DEC
BOSONS; COMPOSITE MODELS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRONS; MATHEMATICAL LOGIC; MATHEMATICAL MODELS; MOTION; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; SPECTROSCOPY

Optional Information

Notes
(c) 2008 The American Physical Society