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Type: Conference paper
Title: The effects of flavour symmetry breaking on hadron matrix elements
Author: Cooke, A.
Horsley, R.
Nakamura, Y.
Pleiter, D.
Rakow, P.
Schierholz, G.
Zanotti, J.
Citation: PoS (Lattice 2012); 116
Publisher: Proceedings of Science
Publisher Place: Italy
Issue Date: 2012
ISSN: 1824-8039
Conference Name: International Symposium on Lattice Field Theory (30th : 2012 : Cairns, Australia)
Statement of
A. N. Cooke, R. Horsley, Y. Nakamura, D. Pleiter, P. E. L. Rakow, G. Schierholz and J. M. Zanotti
Abstract: By considering a flavour expansion about the SU(3)-flavour symmetric point, we investigate how flavour-blindness constrains octet baryon matrix elements after SU(3) is broken by the mass difference between the strange and light quarks. We find the expansions to be highly constrained along a mass trajectory where the singlet quark mass is held constant, which proves beneficial for extrapolations of 2+1 flavour lattice data to the physical point. We investigate these effects numerically via a lattice calculation of the flavour-conserving and flavour-changing matrix elements of the vector and axial operators between octet baryon states.
Description: Extent: 14p.
Rights: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence
RMID: 0020127008
DOI: 10.22323/1.164.0116
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Appears in Collections:Special Research Centre for the Subatomic Structure of Matter publications

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