Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2002-06-10
Phys.Rev. D66 (2002) 074502
Physics
High Energy Physics
High Energy Physics - Lattice
15 pages LaTeX, 7 figures, 4 tables
Scientific paper
10.1103/PhysRevD.66.074502
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 pi/2, hence states with spin equal 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 pi/2, thereby resolving this modulo 4 ambiguity. Calculations of the mass of states with spin equal t o 0, 2, and 4 are performed in the positive parity and charge conjugation channe l 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 conv entionally assigned spin 0, raising the possibility of mis-identification of the spin of states coupling to some traditional operators.
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