Exclusive Semi-Leptonic Decays of b-Baryons into Protons

Abstract

We present a QCD-based calculation of the exclusive semileptonic decay Lambda_b -> p l nu-bar. Using the ideas of Heavy Quark Effective Theory, we discuss the factorization of the amplitude. Further, resummed Sudakov effects are put in to ensure a consistent perturbative expansion.

12 pages with 5 figures, Latex. Full postscript version available via anonymous ftp at ftp://williams.physics.lsa.umich.edu/pubs/preprints/UM-TH-95-11.tar.Z

References in corpus (4)

• QCD Calculation of the $B\to \pi ,K$ Form Factors
• Applicability of Perturbative QCD to $B\to D$ Decays
• A Critical Analysis of the Proton Form Factor with Sudakov Suppression and Intrinsic Transverse Momentum
• Eikonal Wave Functions and Model Independent Exclusive B Decays

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• Distribution Amplitudes of the Lambda_b Baryon in QCD
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• Λ_b \to ΛJ/ψdecay in perturbative QCD
• Light-cone QCD sum rules for the semileptonic decay Lambda_b --> p lepton anti-neutrino
• Light-Cone Distribution Amplitudes of the Ground State Bottom Baryons in HQET
• Applicability of perturbative QCD to ${\Lambda }_b\to {\Lambda }_c$ decays
• The ${\Lambda }_b\to pl\bar{\nu }$ decay in perturbative QCD
• Doubly Charmful Baryonic B Decays
• Physics of Strange Matter
• Calculation of BR(${\bar{B}}^0\to {\Lambda }_c^{+}+\bar{p})$ in the PQCD Approach
• Statistical properties of time-reversible triangular maps of the square
• Exotic phases in compact stars