Weak Semileptonic Decays of Heavy Baryons Containing Two Heavy Quarks

Details Weak Semileptonic Decays of Heavy Baryons Containing Two Heavy Quarks Weak Semileptonic Decays of Heavy Baryons Containing Two Heavy Quarks

1998-05-13

arxiv.org/abs/hep-ph/9805301v1

Phys.Rev. D58 (1998) 114007

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, Latex

Scientific paper

10.1103/PhysRevD.58.114007

In the heavy quark limit a heavy baryon which contains two heavy quarks is believed to be composed of a heavy diquark and a light quark. Based on this picture, we evaluate the weak semileptonic decay rates of such baryons. The transition form factors between two heavy baryons are associated with those between two heavy mesons by applying the superflavor symmetry. The effective vertices of the W-boson and two heavy diquarks are obtained in terms of the Bethe-Salpeter equation. Numerical predictions on these semileptonic decay widths are presented and they will be tested in the future experiments.

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