2006/12/31 by Wei Wei, Xiang Liu, Shi-Lin Zhu · 2 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.75.014013
published as Phys.Rev.D75:014013,2007 · 10 pages, 3 figuers, 3 tables. Some descriptions changed, typos corrected. Published version in PRD
arxiv created 2007/01/09 · openalex publication_date 2007/01/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We first extract the binding energy \ensuremathΛ and decay constants of the D wave heavy meson doublets (1^\ensuremath-,2^\ensuremath-) and (2^\ensuremath-,3^\ensuremath-) with QCD sum rule in the leading order of heavy quark effective theory. Then we study their pionic (\ensuremathπ,K,\ensuremathη) couplings using the light-cone sum rule, from which the parameter \ensuremathΛ can also be extracted. We then calculate the pionic decay widths of the strange/nonstrange D wave heavy D/B mesons and discuss the possible candidates for the D wave charm-strange mesons. Further experimental information, such as the ratio between Ds\ensuremathη and DK modes, will be very useful to distinguish various assignments for DsJ(2860 2715).