The ratio m_c/m_s with Wilson fermions

Details The ratio m_c/m_s with Wilson fermions The ratio m_c/m_s with Wilson fermions

2011-08-08

arxiv.org/abs/1108.1650v1

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 1 figure

Scientific paper

We determine the ratio m_c/m_s on the lattice, using Wilson-type fermions. Configurations with N_f=2 dynamical clover-improved fermions by the QCDSF collaboration are used, which were made available through the ILDG. In the valence sector we use a sophisticated, mass-independently O(a)-improved Wilson-type action with small cut-off effects even in the charm mass region. After an extrapolation to the physical pion mass, to zero lattice spacing and to infinite box volume, we find m_c/m_s=11.34(40)(21).

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