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

Abstract

New universality appears for the baryon Isgur--Wise form factor in the large $N_c$ limit. It is found that the semileptonic ${\Lambda }_b\to {\Lambda }_c$ and ${\Sigma }_b^{(\ast )}\to {\Sigma }_c^{(\ast )}$ 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 ${\Omega }_b^{(\ast )}\to {\Omega }_c^{(\ast )}$ decays.

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

References in corpus (6)

• Chiral perturbation theory for hadrons containing a heavy quark: the sequel
• The Baryon Isgur-Wise Function in the Large $N_c$ Limit
• Properties of Baryons Containing a Heavy Quark in the Skyrme Model
• Baryons Containing a Heavy Quark as Solitons
• Excited ${\Lambda }_Q$ Baryons in the Large $N_c$ Limit
• A Bjorken sum rule for semileptonic ${\Omega }_b$ decays to ground and excited charmed baryon states

Cited by in corpus (20)

• Nonleptonic Weak Decays of Bottom Baryons
• Exclusive Nonleptonic Decays of Bottom and Charm Baryons in a Relativistic Three-Quark Model: Evaluation of Nonfactorizing Diagrams
• Semileptonic Decays of Heavy Lambda Baryons in a Quark Model
• ${\Sigma }_b\to {\Sigma }_c$ and ${\Omega }_b\to {\Omega }_c$ weak decays in the light-front quark model
• Charm and Bottom Baryon Decays in the Bethe-Salpeter Approach: Heavy to Heavy Semileptonic Transitions
• Light-Front Approach for Heavy Pentaquark Transitions
• Bethe-Salpeter Equation for Heavy Baryons ω_{Q}^{(*)} in the Diquark Picture
• Baryonium, tetra-quark state and glue-ball in large N_c QCD
• Choice of heavy baryon currents in QCD sum rules
• ${\Sigma }_b\to {\Sigma }_c^{\ast }$ weak decays in the light-front quark model with two schemes to deal with the polarization of diquark
• From Tetraquark to Hexaquark: A Systematic Study of Heavy Exotics in the Large $N_c$ Limit
• Large $N_c$ Universality of The Baryon Isgur--Wise Form Factor: The Group Theoretical Approach
• Bound on the curvature of the Isgur-Wise function of the baryon semileptonic decay Lambda_b -> Lambda_c + l + nu
• ${\Omega }_b$ semi-leptonic weak decays
• Semileptonic Decays of Heavy Tetraquarks
• 1/N_c Expansion of the Heavy Baryon Isgur-Wise Functions
• Conservation Laws and Sum Rules in the Heavy Quark Limit
• b-baryon semi-tauonic decays in the Standard Model
• Heavy Baryon Masses in Large N_c HQET
• ${\Lambda }_b\to {\Sigma }_c^{(\ast )}\pi l\bar{\nu }$ in the heavy quark, chiral, and large $N_c$ limits