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CLEO 97-17 Investigation of Semileptonic B Meson Decay to P-Wave Charm Mesons
CLNS 97/1501 CLEO 97-17 Investigation of Semileptonic B Meson Decay to P-Wave Charm Mesons CLEO Collaboration (August 28, 1997) Abstract We have studied semileptonic B meson decays with a P-wave charm meson in the final state using 3.29 × 106 BB? events collected by the CLEO II detector at the Cornell Electron-positron Storage Ring. We find a value for the exclusive semileptonic product branching fraction: B(B? → D01` ?ν?`)B(D 0 1 → D ?+π?) = (0.373 ± 0.085 ± 0.052 ± 0.024)% and an upper limit for B(B? → D?02 ` ?ν?`)B(D ?0 2 → D ?+π?) 0.16% (90% C.L.). These results indicate that at least 20% of the total B? semileptonic rate is un- accounted for by the observed exclusive decays, B? → D0`?ν?, B? → D?0`?ν?, B? → D01` ?ν?, and B? → D?02 ` ?ν?. (Submitted to Physical Review Letters) 1 A. Anastassov,1 J. E. Duboscq,1 D. Fujino,1,a K. K. Gan,1 T. Hart,1 K. Honscheid,1 H. Kagan,1 R. Kass,1 J. Lee,1 M. B. Spencer,1 M. Sung,1 A. Undrus,1,b R. Wanke,1 A. Wolf,1 M. M. Zoeller,1 B. Nemati,2 S. J. Richichi,2 W. R. Ross,2 P. Skubic,2 M. Bishai,3 J. Fast,3 J. W. Hinson,3 N. Menon,3 D. H. Miller,3 E. I. Shibata,3 I. P. J. Shipsey,3 M. Yurko,3 S. Glenn,4 S. D. Johnson,4 Y. Kwon,4,c S. Roberts,4 E. H. Thorndike,4 C. P. Jessop,5 K. Lingel,5 H. Marsiske,5 M. L. Perl,5 V. Savinov,5 D. Ugolini,5 R. Wang,5 X. Zhou,5 T. E. Coan,6 V. Fadeyev,6 I. Korolkov,6 Y. Maravin,6 I. Narsky,6 V. Shelkov,6 J. Staeck,6 R. Stroynowski,6 I. Volobouev,6 J. Ye,6 M. Artuso,7 A. Efimov,7 M. Goldberg,7 D. He,7 S. Kopp,7 G. C. Moneti,7 R. Mountain,7 S. Schuh,7 T. Skwarnicki,7 S. Stone,7 G. Viehhauser,7 X. Xing,7 J. Bartelt,8 S. E. Csorna,8 V. Jain,8,d K. W. McLean,8 S. Marka,8 R. Godang,9 K. Kinoshita,9 I. C. Lai,9 P. Pomianowski,9 S. Schrenk,9 G. Bonvicini,10 D. Cinabro,10 R. Greene,10 L. P. Perera,10 G. J. Zhou,10 B. Barish,11 M. Chadha,11 S. Chan,11 G. Eigen,11 J. S. Miller,11 C. O’Grady,11 M. Schmidtler,11 J. Urheim,11 A. J. Weinstein,11 F. Wu?rthwein,11 D. W. Bliss,12 G. Masek,12 H. P. Paar,12 S. Prell,1
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