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dc.contributor.authorHorsley, R.en
dc.contributor.authorNakamura, Y.en
dc.contributor.authorPerlt, H.en
dc.contributor.authorPleiter, D.en
dc.contributor.authorRakow, P.en
dc.contributor.authorSchierholz, G.en
dc.contributor.authorSchiller, A.en
dc.contributor.authorStüben, H.en
dc.contributor.authorWinter, F.en
dc.contributor.authorZanotti, J.en
dc.identifier.citationPhysical Review. D. Particles, Fields, Gravitation and Cosmology, 2012; 85(3):034506:1-034506:12en
dc.description.abstractQCD lattice simulations determine hadron masses as functions of the quark masses. From the gradients of these masses and using the Feynman-Hellmann theorem the hadron sigma terms can then be determined. We use here a novel approach of keeping the singlet quark mass constant in our simulations which upon using an SU(3) flavor symmetry breaking expansion gives highly constrained (i.e. few parameter) fits for hadron masses in a multiplet. This is a highly advantageous procedure for determining the hadron mass gradient as it avoids the use of delicate chiral perturbation theory. We illustrate the procedure here by estimating the light and strange sigma terms for the baryon octet.en
dc.description.statementofresponsibilityR. Horsley, Y. Nakamura, H. Perlt, D. Pleiter, P. E. L. Rakow, G. Schierholz, A. Schiller, H. Stüben, F. Winter, and J. M. Zanotti, (QCDSF-UKQCD Collaboration)en
dc.publisherAmerican Physical Socen
dc.rights© 2012 American Physical Societyen
dc.titleHyperon sigma terms for 2+1 quark flavorsen
dc.typeJournal articleen
pubs.library.collectionChemistry and Physics publicationsen
dc.identifier.orcidZanotti, J. [0000-0002-3936-1597]en
Appears in Collections:Chemistry and Physics publications

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