Charmonium with three flavors of dynamical quarks

Details Charmonium with three flavors of dynamical quarks Charmonium with three flavors of dynamical quarks

2002-10-28

arxiv.org/abs/hep-lat/0210051v1

Nucl.Phys.Proc.Suppl.119:586-591,2003

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, uses espcrc2.sty, Lattice2002(heavyquark)

Scientific paper

10.1016/S0920-5632(03)01627-X

We present a calculation of the charmonium spectrum with three flavors of
dynamical staggered quarks from gauge configurations that were generated by the
MILC collaboration. We use the Fermilab action for the valence charm quarks.
Our calculation of the spin-averaged 1P--1S and 2S--1S splittings yields a
determination of the strong coupling, with $\ams(M_Z) = 0.119 (4)$.

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