Affiliation:
1. Theoretical Physics Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay 400 005, India
Abstract
The charmed and bottom hadron decays have been analyzed phenomenologically, keeping both the spectator and nonspectator contributions to the total decay rates. A sum rule relating the total decay widths of the four low-lying charmed baryons is given. It is pointed out that all the data which have become recently available can be understood in all cases with negligible Pauli interference effects but with important exchange- mechanism contributions. Predictions for the lifetimes of [Formula: see text] and [Formula: see text] together with the expected lifetime hierarchy for the bottom hadrons are given. The corresponding semileptonic branching ratios, where possible, are also predicted.
Publisher
World Scientific Pub Co Pte Lt
Subject
Astronomy and Astrophysics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics
Cited by
9 articles.
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1. A new measurement of the lifetime of the Ξc+;Physics Letters B;1998-05
2. How to search for doubly charmed baryons and tetraquarks;Zeitschrift für Physik A: Hadrons and Nuclei;1996-12
3. Charm lifetime;Il Nuovo Cimento A;1996-06
4. First measurement of the lifetime of the Ωc0;Nuclear Physics B - Proceedings Supplements;1996-06
5. How to search for doubly charmed baryons and tetraquarks;Zeitschrift für Physik A Hadrons and Nuclei;1996-04