1998/05/11 by Isard Dunietz · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.58.094010
published as Phys.Rev.D58:094010,1998 · 27 pages, 4 eps figures, revtex
arxiv created 1998/05/11 · openalex publication_date 1998/09/22 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The branching ratio B(\ensuremathΛc\ensuremath→pK^\ensuremath-\ensuremathπ+) normalizes the production and decay of charmed and bottom baryons. At present, this crucial branching ratio is extracted dominantly from B\ensuremath→baryons analyses. This paper questions several of the underlying assumptions and predicts sizable B\ensuremath→D(*)NN^\ensuremath'X transitions, which were traditionally neglected. It predicts B(\ensuremathΛc\ensuremath→pK^\ensuremath-\ensuremathπ+) to be larger (0.07\ifmmode±\else\textpm\fi0.02) than the world average. Some consequences are briefly mentioned. Several techniques to measure B(\ensuremathΛc\ensuremath→pK^\ensuremath-\ensuremathπ+) are outlined with existing or soon available data samples. By equating two recent CLEO results, an appendix obtains B(D0\ensuremath→K^\ensuremath-\ensuremathπ+)=0.035\ifmmode±\else\textpm\fi0.002, which is somewhat smaller than the current world average.