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      \(1/m_b\) Corrections in the ACCMM Model for Inclusive Semileptonic B Decay

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          Abstract

          We re-examine the model of Altarelli, Cabibbo, Corb\`{o}, Maiani and Martinelli for inclusive semileptonic B decay, in the light of recent calculations in heavy quark effective theory. The model can be shown to have no~\(1/m_b\) corrections, with a suitable definition of the b quark mass~\(m_b\). However, we find that the structure of the \(1/m_b^2\)~terms is incompatible with the predictions of heavy quark effective theory. The numerical significance of this discrepancy is discussed.

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          Author and article information

          Journal
          06 December 1993
          Article
          10.1016/0370-2693(94)90221-6
          hep-ph/9312224
          Custom metadata
          Phys.Lett.B324:446-450,1994
          10 pages (uses revtex), UCLA/93/TEP/47
          hep-ph

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