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• W2080821236 endingPage "2933" @default.
• W2080821236 startingPage "2928" @default.
• W2080821236 abstract "Nonperturbative QCD contributions to the inclusive semileptonic decay of the $B$ meson consist of the dynamic and kinematic components. We calculate the decay width in an approach based on light-cone expansion and heavy quark effective theory, which is able to include both components of nonperturbative QCD contributions. The kinematic component results in the phase-space extension and is shown to be quantitatively crucial, which could increase the decay width significantly. We find that the semileptonic decay width is enhanced by long-distance strong interactions by $+(9ifmmodepmelsetextpmfi{}6)%$. This analysis is used to determine the CKM (Cabibbo-Kobayashi-Maskawa) matrix element $|{V}_{mathrm{cb}}|$ with a controlled theoretical error. Implications of the phase-space effects for the nonleptonic decay widths of $b$ hadrons are briefly discussed. The experimental evidence for the phase-space effects is pointed out." @default.
• W2080821236 created "2016-06-24" @default.
• W2080821236 creator A5066754475 @default.
• W2080821236 date "1997-09-01" @default.
• W2080821236 modified "2023-09-25" @default.
• W2080821236 title "Nonperturbative QCD contributions to the semileptonic decay width of theBmeson" @default.
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• W2080821236 doi "https://doi.org/10.1103/physrevd.56.2928" @default.
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