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  • Light hadrons from Nf=2+1+1 dynamical twisted mass fermions
    Baron, R; Blossier, B; Boucaud, P; Carbonell, J; Deuzeman, A; Drach, V; Farchioni, F; Gimenez, V; Herdoiza, G; Jansen, K; Michael, C; Montvay, I; Pallante, E; Pène, O; Reker, S; Urbach, C; Wagner, M; Wenger, U; the ETM Collaboration

    arXiv (Cornell University), 01/2011
    Paper, Journal Article

    We present results of lattice QCD simulations with mass-degenerate up and down and mass-split strange and charm (Nf=2+1+1) dynamical quarks using Wilson twisted mass fermions at maximal twist. The tuning of the strange and charm quark masses is performed at three values of the lattice spacing a~0.06 fm, a~0.08 fm and a~0.09 fm with lattice sizes ranging from L~1.9 fm to L~3.9 fm. We perform a preliminary study of SU(2) chiral perturbation theory by combining our lattice data from these three values of the lattice spacing.

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