Motion of b-quark inside B meson: the Parton Model vs. the ACCMM Model

Abstract

We study the distribution function of the b-quark for inclusive semileptonic B decays in the framework of the parton model. We compare the functional behavior of the fragmentation inspired function and the Gaussian ACCMM function, and discuss their validity. Using the HQET parameters, we can critically test these models.

24 pages, ReVTex with 6 eps figure files embedded with epsfig.sty the 1st revised version, to appear in Phys. Rev. D

References in corpus (6)

• Average Kinetic Energy of Heavy Quark and Virial Theorem
• Exploring the Invisible Renormalon: Renormalization of the Heavy-Quark Kinetic Energy
• QCD Sum-Rule Calculation of the Kinetic Energy and Chromo-Interaction of Heavy Quarks Inside Mesons
• Heavy Quark Kinetic Energy in B Mesons by a QCD Relativistic Potential Model
• Nonperturbative QCD Contributions to the Semileptonic Decay Width of the B Meson
• Determination of the HQET Parameters from the $B\to X_s\gamma$ Decay

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• Hadronic B decays: Supersymmetric enhancement and a simple spectator model
• Hadronic Invariant Mass Spectrum in B -> X_u l nu Decay with Lepton Energy Cut
• Comparative analysis of non-perturbative effects in B -> X_u l anti-nu_l decays
• First search for $B\to X_s\nu \bar{\nu }$ decays