Weak semileptonic decays of heavy baryons containing two heavy quarks

1998/05/13 by Xin-Heng Guo, Hong-Ying Jin, Xue-Qian Li · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1103/physrevd.58.114007

published as Phys.Rev. D58 (1998) 114007 · 28 pages, Latex

arxiv created 1998/05/13 · openalex publication_date 1998/10/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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 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 future experiments.

Citations

• A Relativistic Equation for Bound-State Problems

Cited by

• Static properties and semileptonic decays of doubly heavy baryons in a nonrelativistic quark model
• Radiative decays of double heavy baryons in a relativistic constituent three-quark model including hyperfine mixing effects