Measurement of ℬ (D0 → K-π+) Using Partial Reconstruction of Using Partial Reconstruction of ¯ B → D*+ Xℓ- ¯v

M. Artuso, F. Azfar, A. Efimov, M. Goldberg, D. He, S. Kopp, G. C. Moneti, R. Mountain, S. Schuh, T. Skwarnicki, S. Stone, G. Viehhauser, X. Xing, J. Bartelt, S. E. Csorna, V. Jain, K. W. McLean, S. Marka, R. Godang, K. KinoshitaI. C. Lai, P. Pomianowski, S. Schrenk, G. Bonvicini, D. Cinabro, R. Greene, L. P. Perera, G. J. Zhou, M. Chadha, S. Chan, G. Eigen, J. S. Miller, C. O’grady, M. Schmidtler, J. Urheim, A. J. Weinstein, F. Würthwein, D. M. Asner, J. Gronberg, T. S. Hill, D. J. Lange, R. J. Morrison, H. N. Nelson, T. K. Nelson, D. Roberts, A. Ryd, R. Balest, B. H. Behrens, A. Smith, Z. Ling, CLEO Collaboration

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Abstract

We present a measurement of the absolute branching fraction for D0 → K-π+ using the reconstruction of the decay chain ¯ B → D*+ Xℓ- ¯v where only the lepton and the low-momentum pion from the D*+ are detected. With data collected by the CLEO II detector at the Cornell Electron Storage Ring, we have determined B(D0 → K-π+)=[3.81±0.15(stat)±0.16(syst)]%.

Original languageEnglish (US)
Pages (from-to)3193-3197
Number of pages5
JournalPhysical review letters
Volume80
Issue number15
DOIs
StatePublished - 1998

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