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T: Teilchenphysik

T 504: Schwere Quarks V

T 504.5: Vortrag

Donnerstag, 20. März 1997, 16:55–17:10, 221

The bb Spectrum from NRQCD with dynamical gauge configurations — •Achim Spitz — Fachbereich Physik, Universit"at Wuppertal, 42097 Wuppertal

We investigate the bb spectrum in a "full" QCD simulation with N_f=2 dynamical Wilson quarks using the Nonrelativistic Lattice QCD approach for heavy quarks. Within the SESAM project we have generated statistically significant samples of gauge configurations for three different values of the Wilson hopping parameter on a 16³× 32 lattice at β=5.6. We study the dependence of level splittings on the light quark mass and compare with the quenched approximation. The value of the strong coupling constant α_P^(n_f) is extracted for the physical number of light dynamical flavours.