arXiv:1102.3492·v1·High Energy Physics — Lattice
Extracting Low-Lying Lambda Resonances Using Correlation Matrix Techniques
Benjamin J. Menadue🇦🇺 · Waseem Kamleh🇦🇺 · Derek B. Leinweber🇦🇺 · M. S. Mahbub🇦🇺
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.
Comments: 3 pages, 1 figure, submitted to the proceedings of T(R)OPICAL QCD II, Cairns, Australia, 2010