2006/04/16 by Ho-Meoyng Choi, Chueng‐Ryong Ji, Cheung-Ryong Ji
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.73.114020
published as Phys.Rev.D73:114020,2006 · 12pages, 7figures
arxiv created 2006/04/16 · openalex publication_date 2006/06/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We analyze the exclusive pseudoscalar D[s]+D[s]^\ensuremath- pair production in e+e^\ensuremath- annihilations at √(s)=10.6 GeV using a nonfactorized PQCD with the light-front wave function that goes beyond the peaking approximation. We compare our nonfactorized analysis with the usual factorized analysis based on the peaking approximation in the calculation of the cross section for the heavy meson pair production. We also discuss the higher helicity contribution to the cross section. Our analysis provides a constraint on the size of quark transverse momentum inside the D meson from the recent Belle data, \ensuremathσexp(e+e^\ensuremath-\ensuremath→D+D^\ensuremath-)<0.04 [pb].