Strong and Electromagnetic Decays of Two New $Lambda_c^*$ Baryons

Details Strong and Electromagnetic Decays of Two New $Lambda_c^*$ Baryons Strong and Electromagnetic Decays of Two New $Lambda_c^*$ Baryons

1994-01-18

arxiv.org/abs/hep-ph/9401276v1

Phys.Rev. D50 (1994) 3295-3302

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages with 4 figures not included but available upon request, CALT-68-1912

Scientific paper

10.1103/PhysRevD.50.3295

Two recently discovered excited charm baryons are studied within the framework of Heavy Hadron Chiral Perturbation Theory. We interpret these new baryons which lie $308 \MeV$ and $340 \MeV$ above the $\Lambda_c$ as $I=0$ members of a P-wave spin doublet. Differential and total decay rates for their double pion transitions down to the $\Lambda_c$ ground state are calculated. Estimates for their radiative decay rates are also discussed. We find that the experimentally determined characteristics of the $\Lambda_c^*$ baryons may be simply understood in the effective theory.

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