D0,D+,Ds+, andΛc+fragmentation functions from CERN LEP1

2005/04/07 by Bernd A. Kniehl, Gustav Kramer
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.71.094013

published as Phys.Rev. D71 (2005) 094013 · 21 pages, 8 figures

arxiv created 2005/04/07 · openalex publication_date 2005/05/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

Abstract

We present new sets of nonperturbative fragmentation functions for D⁰, D⁺, and D_s⁺ mesons as well as for \ensuremathΛ_c⁺ baryons, both at leading and next-to-leading order in the MS factorization scheme with five massless quark flavors. They are determined by fitting data of e⁺e^\ensuremath- annihilation taken by the OPAL Collaboration at CERN LEP1. We take the charm-quark fragmentation function to be of the form proposed by Peterson et al. and thus obtain new values of the ϵ_c parameter, which are specific for our choice of factorization scheme.

Citations

• Asymptotic freedom in parton language
• Pion and kaon production ine+e−andepcollisions at next-to-leading order
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Measurement of \rm f(c → D^*+ X) , \rm f(b → D^*+ X) and Γ_{\rm c c}/Γ_{\rm had} using \rm D^*± mesons