6.06.11 16:15

Lattice NRQCD in the Upsilon system

Jan Daldrop (Bonn)

The results from a dynamical lattice NRQCD calculations with 2+1+1 relativistic sea quarks for excited angular momentum bottomonium states are presented in this talk.  P-wave spin splittings are used to determine the coefficients of the lattice NRQCD action which dominate spin dependent splittings.  Significant improvement of accuracy can be achieved this way.  Experimental results for radially non excited S- and P-wave splittings are reproduced numerically.  Predictions for the L=2 fine structure splittings can be extracted from a D-wave calculation.


(Seminarraum II)

Kategorie: Feldtheorie