Quenched chiral perturbation theory for vector mesons

Journal Article · Fri Feb 28 23:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.55.3092· OSTI ID:467556

Booth, M; Chiladze, G; Falk, A F ^[1]

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1. Department of Physics and Astronomy, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218 (United States)

We develop quenched chiral perturbation theory for vector mesons made of light quarks, in the limit where the vector meson masses are much larger than the pion mass. We use this theory to extract the leading nonanalytic dependence of the vector meson masses on the masses of the light quarks. By comparing with analogous quantities computed in ordinary chiral perturbation theory, we estimate the size of quenching effects, observing that in general they can be quite large. This estimate is relevant to lattice simulations, where the {rho} mass is often used to set the lattice spacing. {copyright} {ital 1997} {ital The American Physical Society}

• DOE Contract Number: FG02-94ER40869
• OSTI ID: 467556
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHIRAL SYMMETRY
LATTICE FIELD THEORY
MASS
PERTURBATION THEORY
QUARK MODEL
QUARKS
RHO-770 MESONS
SIMULATION
VECTOR MESONS