Failure of local duality in inclusive non-leptonic heavy flavour decays

1996/04/05 by Guido Altarelli, G. Altarelli, G. Martinelli +2 · 2 citations
Mathematics · Physics and Astronomy · #Combinatorics #Duality (order theory) #Flavour #Hadron #High-Energy Particle Collisions Research #Mathematics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quark #hep-ph

paper · pdf · doi:10.1016/0370-2693(96)00637-5

published as Phys.Lett.B382:409-414,1996 · 9 pages, 1 figure; Revised: one reference ([11]) has been changed

arxiv created 1996/04/05 · openalex publication_date 1996/08/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We argue that there is strong experimental evidence in the data of b- and c-decays that the pattern of power suppressed corrections predicted by the short distance expansion, the heavy quark effective theory and the assumption of local duality is not correct for the non-leptonic inclusive widths. The data indicate instead the presence of 1/m corrections that should be absent in the above theoretical framework. These corrections can be simply described by replacing the heavy quark mass by the mass of the decaying hadron in the m⁵ factor in front of all the non-leptonic widths.

Citations

• Analysis of the photon spectrum in inclusiveB→Xsγdecays
• Resummation of running coupling effects in semileptonicBmeson decays and extraction of ‖Vcb‖
• Heavy quark expansion for the inclusive decay
• QCD-based interpretation of the lepton spectrum in inclusiveB¯→Xuℓν¯decays
• Extracting |Vbc|, mc and mb from inclusive D and B decays
• Inclusive semileptonicBand polarizedΛbdecays from QCD

Cited by

• Implications of isospin conservation in Λb decays and lifetime
• The Λb lifetime in the light front quark model