New Universality of Baryon Isgur--Wise Form Factor in the Large $N_c$ limit

Details New Universality of Baryon Isgur--Wise Form Factor in the Large $N_c$ limit New Universality of Baryon Isgur--Wise Form Factor in the Large $N_c$ limit

1994-08-25

arxiv.org/abs/hep-ph/9408364v1

Phys.Rev. D51 (1995) 1224-1227

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages in REVTEX galley style, CALT-68-1946

Scientific paper

10.1103/PhysRevD.51.1224

New universality appears for the baryon Isgur--Wise form factor in the large $N_c$ limit. It is found that the semileptonic $\Lambda_b \rightarrow \Lambda_c$ and $\Sigma_b^{(*)} \rightarrow \Sigma^{(*)}_c$ decays are described by the same form factor, which can be calculated analytically. In the exact chiral $SU(3)$ limit, the same form factor is applicable to semileptonic $\Omega_b^{(*)} \rightarrow \Omega^{(*)}_c$ decays.

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