Extracting Low-Lying Lambda Resonances Using Correlation Matrix Techniques

Journal Article · Tue May 24 04:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3587609· OSTI ID:21516873

Menadue, Benjamin J; Kamleh, Waseem; Leinweber, Derek B; Mahbub, M S ^[1]

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1. Special Research Centre for the Subatomic Structure of Matter, School of Chemistry and Physics, University of Adelaide (Australia)

The lowest-lying negative-parity state of the Lambda is investigated in (2+1)-flavour full-QCD on the PACS-CS configurations made available through the ILDG. We show that a variational analysis using multiple source and sink smearings can extract a state lying lower than that obtained by using a standard fixed smeared source and sink operator alone.

• OSTI ID: 21516873
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1354; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR CORRELATION
BARYONS
CALCULATION METHODS
COMPOSITE MODELS
CONFIGURATION
CORRELATIONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FLAVOR MODEL
HADRONS
HYPERONS
LAMBDA BARYONS
LAMBDA PARTICLES
MATHEMATICAL MODELS
NUCLEONS
PARITY
PARTICLE MODELS
PARTICLE PROPERTIES
PERTURBED ANGULAR CORRELATION
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
RESONANCE
RESONANCE PARTICLES
SINKS
STRANGE PARTICLES
VARIATIONAL METHODS