Excited $Λ_Q$ Baryons in the Large $N_c$ Limit

Details Excited $Λ_Q$ Baryons in the Large $N_c$ Limit Excited $Λ_Q$ Baryons in the Large $N_c$ Limit

1994-02-17

arxiv.org/abs/hep-ph/9402310v1

Phys.Rev. D50 (1994) 2135-2138

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, use phyzzx, CALT-68-1919

Scientific paper

10.1103/PhysRevD.50.2135

The spectrum of excited $\Lambda_Q$-type heavy baryons is considered in the large $N_c$ limit. The universal form factors for $\Lambda_b$ semileptonic decay to excited charmed baryons are calculated in the large $N_c$ limit. We find that the Bjorken sum rule (for the slope of the Isgur--Wise function) and Voloshin sum rule (for the mass of the light degrees of freedom) are saturated by the first doublet of excited $\Lambda_Q$ states.

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