Heavy Baryon Production and Decay

Details Heavy Baryon Production and Decay Heavy Baryon Production and Decay

1998-05-11

arxiv.org/abs/hep-ph/9805287v1

Phys.Rev.D58:094010,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

27 pages, 4 eps figures, revtex

Scientific paper

10.1103/PhysRevD.58.094010

The branching ratio B(Lambda_c -> p K- pi+) normalizes the production and decay of charmed and bottom baryons. At present, this crucial branching ratio is extracted dominantly from B.bar -> baryons analyses. This note questions several of the underlying assumptions and predicts sizable B.bar -> D(*) N N'.bar X transitions, which were traditionally neglected. It predicts B(Lambda_c -> p K- pi+) to be significantly larger (0.07 +/- 0.02) than the world average. Some consequences are briefly mentioned. Several techniques to measure B(Lambda_c -> p K- pi+) are outlined with existing or soon available data samples. By equating two recent CLEO results, an appendix obtains B(D0 -> K- pi+)= 0.035 +/- 0.002, which is somewhat smaller than the current world average.

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