Excited-State Hadrons Using the Stochastic LapH Method

Progress in computing the spectrum of excited baryons and mesons in lattice QCD is described. Large sets of spatially-extended hadron operators are used. A new method of stochastically estimating the low-lying effects of quark propagation is utilized which allows reliable determinations of temporal...

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Bibliographic Details
Main Authors: Morningstar, Colin, Bell, Alexander, Lenkner, D., Wong, C. H., Bulava, John, Foley, J., Juge, Keisuke J.
Format: Conference Proceeding
Language:English
Subjects:
BARYONS
BOSONS
CONSTRUCTIVE FIELD THEORY
CORRELATIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ETA MESONS
EXCITED STATES
FERMIONS
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INTERACTIONS
LATTICE FIELD THEORY
MASS
MESON-BARYON INTERACTIONS
MESONS
OMEGA BARYONS
PARTICLE INTERACTIONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARKS
SIGMA BARYONS
SPECTRA
STOCHASTIC PROCESSES
STRANGE PARTICLES
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Summary:Progress in computing the spectrum of excited baryons and mesons in lattice QCD is described. Large sets of spatially-extended hadron operators are used. A new method of stochastically estimating the low-lying effects of quark propagation is utilized which allows reliable determinations of temporal correlations of both single-hadron and multi-hadron operators. The method is tested on the {eta},{sigma},{omega} mesons.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.3587592