Heavy quark symmetry constraints on semileptonic form factors and decay widths of doubly heavy baryons

Abstract

We show how heavy quark symmetry constraints on doubly heavy baryon semileptonic decay widths can be used to test the validity of different quark model calculations. The large discrepancies in the results observed between different quark model approaches can be understood in terms of a severe violation of heavy quark spin symmetry constraints by some of those models.

10 LaTex pages, 3 figures, 6 tables. Corrected and enlarged version

References in corpus (1)

• Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model

Cited by in corpus (14)

• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Weak Decays of Doubly Heavy Baryons: the $1/2\to 1/2$ case
• Strong and radiative decays of the doubly charmed baryons
• Radiative decays of double heavy baryons in a relativistic constituent three-quark model including hyperfine mixing
• Decay chain information on the newly discovered double charm baryon state ${\Xi }_{cc}^{++}$
• Bethe-Salpeter equation for doubly heavy baryons in the covariant instantaneous approximation
• Estimates of W-exchange contributions to ${\Xi }_{cc}$ decays
• Analysis of the semileptonic and nonleptonic two-body decays of the double heavy charm baryon states ${\Xi }_{cc}^{++},{\Xi }_{cc}^{+}$ and ${\Omega }_{cc}^{+}$
• FCNC-induced semileptonic decays of $J/\psi$ in the Standard Model
• Strong interaction of doubly heavy spin-3/2 baryons with light vector mesons
• Strong vertices of doubly heavy spin-3/2--spin-1/2 baryons with light mesons in light-cone QCD sum rules
• Static properties and Semileptonic transitions of lowest-lying double heavy baryons
• Strong Vertices of Doubly Heavy Spin-3/2 Baryons with Light Pseudoscalar Mesons
• Heavy Quark Spin Symmetry and Heavy Baryons: Electroweak Decays