Hyperon Form Factors from N_f=2+1 QCD

Abstract

We present results from the QCDSF/UKQCD collaboration for the electromagnetic and semi-leptonic form factors for the hyperons. The simulations are performed on our new ensembles generated with 2+1 flavours of dynamical O(a)-improved Wilson fermions. A unique feature of these configurations is that the quark masses are tuned so that the singlet quark mass is held fixed at its physical value. We use 5 such choices of the individual quark masses on 24^3x48 lattices with a lattice spacing of about 0.078 fm.

7 pages, 6 figures, 1 table. Talk presented at The XXVIII International Symposium on Lattice Field Theory, Villasimius, Italy, 14-19 June 2010

References in corpus (8)

• Lattice QCD calculation of $\bar{B}\to Dl\bar{\nu }$ decay form factors at zero recoil
• Precision Electromagnetic Structure of Octet Baryons in the Chiral Regime
• Tuning the strange quark mass in lattice simulations
• Non-perturbative improvement of stout-smeared three flavour clover fermions
• Quark Contributions to Baryon Magnetic Moments in Full, Quenched and Partially Quenched QCD
• Lattice study of flavor SU(3) breaking in hyperon beta decay
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Cited by in corpus (2)

• Flavour blindness and patterns of flavour symmetry breaking in lattice simulations of up, down and strange quarks
• The effects of flavour symmetry breaking on hadron matrix elements