Properties of charmonium in lattice QCD with 2+1 flavors of improved staggered sea quarks

Details Properties of charmonium in lattice QCD with 2+1 flavors of improved staggered sea quarks Properties of charmonium in lattice QCD with 2+1 flavors of improved staggered sea quarks

2003-10-15

arxiv.org/abs/hep-lat/0310042v1

Nucl.Phys.Proc.Suppl.129:340-342,2004

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice2003(heavy)

Scientific paper

10.1016/S0920-5632(03)02575-1

We use the dynamical gluon configurations provided by the MILC collaboration
in a study of the charmonium spectrum and psi leptonic width. We examine sea
quark effects on mass splitting and on the leptonic decay matrix element for
light masses as low as m_s/5, while keeping the strange quark mass fixed and
the lattice spacing nearly constant.

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