1993/11/30 by Peter J. Cho, Peter Cho, Sandip P. Trivedi
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.50.381
published as Phys.Rev. D50 (1994) 381-388 · 16 pages, 2 updated figures not included but available upon request, CALT-68-1902. (Revised estimates for error on $D_{s2}$ width and for isospin violating neutral pion decay of $D'_{s1}$.)
arxiv created 1994/02/01 · openalex publication_date 1994/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Goldstone boson decays of P-wave Ds** mesons are studied within the framework of heavy hadron chiral perturbation theory. We first analyze the simplest single kaon decays of these strange charmed mesons. We derive a model-independent prediction for the width of Ds2 and use experimental information on Ds1 to constrain the S-wave contribution to D10 decay. Single and double pion decay modes are then discussed and shown to be significantly restricted by isospin conservation. We conclude that the pion channels may offer the best hope for detecting one strange member of an otherwise invisible P-wave flavor multiplet.