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Abstract: Using Heavy Quark Effective Theory with non-perturbatively determinedparameters in a quenched lattice calculation, we evaluate the splittingsbetween the ground state and the first two radially excited states of the $B s$system at static order. We also determine the splitting between first excitedand ground state, and between the $B s^*$ and $B s$ ground states to order$1-m b$. The Generalized Eigenvalue Problem and the use of all-to-allpropagators are important ingredients of our approach.



Autor: Benoît Blossier, Michele Della Morte, Nicolas Garron, Georg von Hippel, Tereza Mendes, Hubert Simma, Rainer Sommer

Fuente: https://arxiv.org/







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