1995/10/14 by A. Khodjamirian, R. Rückl · 12 citations
Physics and Astronomy · #Amplitude #B meson #Factorization #High-Energy Particle Collisions Research #Meson #Mixing (physics) #Particle physics theoretical and experimental studies #QCD sum rules #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quark #hep-ph
paper · pdf · doi:10.1016/0168-9002(95)00999-x
published in Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment 368(1), 28-35 (Elsevier BV) · 14 pages, Latex, epsf.sty, 3 uuencoded .ps figures; invited talk presented by R. Rückl at the Workshop `Beauty 95', Oxford, July 9-14,1995, to appear in the proceedings
arxiv created 1995/10/14 · openalex publication_date 1995/12/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present results for the B → π and D→ π form factors derived from QCD sum rules on the light-cone. Our predictions are compared with experiment and used to extract the quark mixing parameter |Vub| from a recent CLEO measurement of B \ra πl+ ν. Furthermore, we discuss the factorization approximation for exclusive nonleptonic matrix elements, and describe a first QCD estimate of the nonfactorizable contribution to the amplitude of B → J/ψK .