Heavy quark fragmentation into heavy mesons

1993/06/01 by R. L. Jaffe, L. Randall · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/0550-3213(94)90495-2

published as Nucl.Phys.B412:79-105,1994 · 36 pages (Plain TeX with a PostScript figure appended at end), MIT CTP #2189

arxiv created 1993/06/01 · openalex publication_date 1994/01/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a QCD based interpretation of heavy quark fragmentation which utilizes the heavy quark mass expansion. By distinguishing between perturbative and non-perturbative QCD effects, we show how to reliably extract mass independent parameters characterizing the fragmentation function. Because these parameters are quark mass independent, this procedure should permit tests of heavy quark symmetry. Furthermore, we show that heavy quark mass corrections vanish at order m²/Q² in QCD. There also exist higher twist corrections of order Λm/Q² and α_QCD\overπ m²\over Q² ln (Q²/m²) which we relate to the leading twist fragmentation function.

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