Flavor-specific inclusive B decays to charm

T. E. Coan, V. Fadeyev, I. Korolkov, Y. Maravin, I. Narsky, V. Shelkov, J. Staeck, R. Stroynowski, I. Volobouev, J. Ye, M. Artuso, F. Azfar, A. Efimov, M. Goldberg, D. He, S. Kopp, G. C. Moneti, R. Mountain, S. Schuh, T. SkwarnickiS. Stone, G. Viehhauser, X. Xing, J. Bartelt, S. E. Csorna, V. Jain, K. W. McLean, S. Marka, R. Godang, K. Kinoshita, I. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, G. J. Zhou, B. Barish, M. Chadha, S. Chan, G. Eigen, J. S. Miller, C. O’grady, M. Schmidtler, J. Urheim, A. J. Weinstein, F. Würthwein, Y. Kubota, R. Poling, CLEO Collaboration

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We have measured the branching fractions for B → D®X, B → D®X, and B → D®Xℓ+v. From these results and some previously measured branching fractions, we obtain B(b → cc®s) = (21.9 ± 3.7)%, B(b → sg) < 6.8% at 90% C.L., and B(D0 → K− π+ = (3.69 ± 0.20)%. Implications for the “B semileptonic decay problem” (measured branching fraction being below theoretical expectations) are discussed. With the increase in the value of B(b → cc®s) due to B → DX, the discrepancy is no longer statistically compelling.

Original languageEnglish (US)
Pages (from-to)1150-1155
Number of pages6
JournalPhysical review letters
Issue number6
StatePublished - 1998

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    Coan, T. E., Fadeyev, V., Korolkov, I., Maravin, Y., Narsky, I., Shelkov, V., Staeck, J., Stroynowski, R., Volobouev, I., Ye, J., Artuso, M., Azfar, F., Efimov, A., Goldberg, M., He, D., Kopp, S., Moneti, G. C., Mountain, R., Schuh, S., ... CLEO Collaboration (1998). Flavor-specific inclusive B decays to charm. Physical review letters, 80(6), 1150-1155. https://doi.org/10.1103/PhysRevLett.80.1150