This title appears in the Scientific Report :
2013
The effects of flavour symmetry breaking on hadron matrix elements
The effects of flavour symmetry breaking on hadron matrix elements
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 tra...
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Personal Name(s): | Cooke, A. N. (Corresponding author) |
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Horsley, R. / Nakamura, Y. / Pleiter, D. / Rakow, P. E. L. / Schierholz, G. / Zanotti, J. M. | |
Contributing Institute: |
Jülich Supercomputing Center; JSC |
Imprint: |
2012
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Physical Description: |
116 |
Conference: | 30th International Symposium on Lattice Field Theory, Cairns (Australia), 2012-06-24 - 2012-06-29 |
Document Type: |
Contribution to a conference proceedings |
Research Program: |
Computational Science and Mathematical Methods |
Publikationsportal JuSER |
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. |