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Partially quenched study of strange baryon with Nf = 2 twisted mass fermions

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.
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http://hal.in2p3.fr/in2p3-00311328
Contributor : Emmanuelle Vernay <>
Submitted on : Tuesday, May 19, 2009 - 11:32:21 AM
Last modification on : Wednesday, September 16, 2020 - 4:00:11 PM

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  • HAL Id : in2p3-00311328, version 1
  • ARXIV : 0905.2894

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V. Drach, M. Brinet, J. Carbonell, Z. Liu, R. Baron, et al.. Partially quenched study of strange baryon with Nf = 2 twisted mass fermions. XXVI International Symposium on Lattice Field Theory (Lattice 2008), Jul 2008, Williamsburg, United States. pp.123. ⟨in2p3-00311328⟩

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