Partially quenched study of strange baryon with Nf = 2 twisted mass fermions
High Energy Physics - Lattice
2010-01-21 v2
Abstract
We present results on the mass of the baryon octet and decuplet using two flavors of light dynamical twisted mass fermions. The strange quark mass is fixed to its physical value from the kaon sector in a partially quenched set up. Calculations are performed for light quark masses corresponding to a pion mass in the range 270-500 MeV and lattice sizes of 2.1 fm and 2.7 fm. We check for cut-off effects and isospin breaking by evaluating the baryon masses at two different lattice spacings. We carry out a chiral extrapolation for the octet baryons and discuss results for the Omega.
Keywords
Cite
@article{arxiv.0905.2894,
title = {Partially quenched study of strange baryon with Nf = 2 twisted mass fermions},
author = {V. Drach and M. Brinet and J. Carbonell and Z. Liu and C. Alexandrou and T. Korzec and G. Koutsou and R. Baron and P. Guichon and O. Pène and E. Pallante and S. Reker and C. Urbach and K. Jansen},
journal= {arXiv preprint arXiv:0905.2894},
year = {2010}
}
Comments
7 pages, 9 figures, Talk presented at The XXVI International Symposium on Lattice Field Theory, LATTICE 2008, July 14 - 19, 2008, Williamsburg, Virginia, USA