B and bottomonium spectroscopy from lattice NRQCD with charm in the sea

Abstract

We give results for B, Bs, Bc and bottomonium spectroscopy using NRQCD heavy quarks and HISQ valence and sea quarks. Five MILC ensembles of gluon configurations with three values of the lattice spacing and m(light)/m(strange) values down to 0.1 are used that include 2+1+1 flavours of sea quark. Systematic errors in the NRQCD action are improved through the radiative correction of the coefficients of terms at v^4. Improved results for S-wave and P-wave bottomonium states are discussed as well as a prediction for the full D-wave spectrum. Preliminary results for the ground state B meson masses are also presented.

7 pages, 8 figures

References in corpus (5)

• Highly Improved Staggered Quarks on the Lattice, with Applications to Charm Physics
• Scaling studies of QCD with the dynamical HISQ action
• The Upsilon spectrum and the determination of the lattice spacing from lattice QCD including charm quarks in the sea
• Precise B, B_s and B_c meson spectroscopy from full lattice QCD
• Radiative corrections to the lattice gluon action for highly improved staggered quarks (HISQ) and the effect of such corrections on the static potential