Quarkonium mass splittings with Fermilab heavy quarks and 2+1 flavors of improved staggered sea quarks
T. Burch,
C. E. DeTar,
M. Di Pierro
et al.
Abstract:We present results from an ongoing lattice study of the lowest lying charmonium and bottomonium level splittings using the Fermilab heavy quark formalism. Our objective is to test the performance of this action on MILC-collaboration ensembles of (2 + 1) flavors of light improved staggered (asqtad) quarks. Measurements are done on 16 ensembles with degenerate up and down quarks of various masses, thus permitting a chiral extrapolation, and over lattice spacings ranging from 0.09 fm to 0.18 fm, thus permitting s… Show more
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