Spin resolution of glueballs in (2+1)-dimensional lattice gauge theory
Creators
- 1. Department of Physics, University of Oxford, Theoretical Physics, 1 Keble Road, Oxford OX1 3NP (United Kingdom)
Description
Conventional lattice gauge theory assigns the lowest spin compatible with the symmetry channel of a given operator to the state coupling to that operator. Operators on a cubic lattice, however, are only defined on angles of π/2; hence states with equal spin modulo 4 may overlap significantly. This paper explores a new technique for generating lattice operators that may be placed onto the lattice at angles other than π/2, thereby resolving this modulo 4 ambiguity. Calculations of the mass of states with spin equal to 0, 2, and 4 are performed in the positive parity and charge conjugation channel and compared to the spectrum from previous lattice calculations. These masses compare well for spin 0 and 2, and for spin 4 the mass agrees with a state conventionally assigned spin 0, raising the possibility of misidentification of the spin of states coupling to some traditional operators
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.66.074502;
- arXiv
- arXiv:hep-lat/0206005v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 66
- Journal Issue
- 7
- Journal Page Range
- p. 074502-074502.7
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35073418
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- C INVARIANCE; COUPLING; FIELD OPERATORS; GAUGE INVARIANCE; GLUEBALLS; LATTICE FIELD THEORY; MESONS; P INVARIANCE; PARITY; QUANTUM CHROMODYNAMICS; RESONANCE PARTICLES; REST MASS; SPIN; SU-2 GROUPS
- Descriptors DEC
- ANGULAR MOMENTUM; BOSONS; CONSTRUCTIVE FIELD THEORY; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; INVARIANCE PRINCIPLES; LIE GROUPS; MASS; MATHEMATICAL OPERATORS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; QUANTUM OPERATORS; SU GROUPS; SYMMETRY GROUPS
Optional Information
- Notes
- (c) 2002 The American Physical Society