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DOE OSTI · 21516873

Extracting Low-Lying Lambda Resonances Using Correlation Matrix Techniques

Menadue, Benjamin J·Kamleh, Waseem·Leinweber, Derek B·Mahbub, M S
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Abstract

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.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSANGULAR CORRELATIONBARYONSCALCULATION METHODSCOMPOSITE MODELSCONFIGURATIONCORRELATIONSELEMENTARY PARTICLESFERMIONSFIELD THEORIESFLAVOR MODELHADRONSHYPERONSLAMBDA BARYONSLAMBDA PARTICLESMATHEMATICAL MODELSNUCLEONSPARITYPARTICLE MODELSPARTICLE PROPERTIESPERTURBED ANGULAR CORRELATIONQUANTUM CHROMODYNAMICSQUANTUM FIELD THEORYQUARK MODELQUARKSRESONANCERESONANCE PARTICLESSINKSSTRANGE PARTICLESVARIATIONAL METHODS

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Menadue, Benjamin J, Kamleh, Waseem, Leinweber, Derek B, Mahbub, M S. 2011-05-24. Extracting Low-Lying Lambda Resonances Using Correlation Matrix Techniques. https://doi.org/10.1063/1.3587609

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