A study of D*+π- production in semileptonic B decay

D. Buskulic, D. Casper, I. De Bonis, D. Decamp, P. Ghez, C. Goy, J. P. Lees, M. N. Minard, P. Odier, B. Pietrzyk, F. Ariztizabal, M. Chmeissani, J. M. Crespo, I. Efthymiopoulos, E. Fernandez, M. Fernandez-Bosman, V. Gaitan, Ll Garrido, M. Martinez, S. OrteuA. Pacheco, C. Padilla, F. Palla, A. Pascual, J. A. Perlas, F. Sanchez, F. Teubert, D. Creanza, M. de Palma, A. Farilla, G. Iaselli, G. Maggi, N. Marinelli, S. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, G. Bonvicini, M. Cattaneo, P. Comas, P. Coyle, H. Drevermann, A. Engelhardt, R. W. Forty, M. Frank, G. Ganis, M. Girone, R. Hagelberg, J. Harvey, R. Jacobsen, B. Jost, J. Knobloch, I. Lehraus, M. Maggi, C. Markou, E. B. Martin, P. Mato, H. Meinhard, A. Minten, R. Miquel, P. Palazzi, J. R. Pater, P. Perrodo, J. F. Pusztaszeri, F. Ranjard, L. Rolandi, D. Schlatter, M. Schmelling, W. Tejessy, I. R. Tomalin, R. Veenhof, A. Venturi, H. Wachsmuth, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Barres, C. Boyer, A. Falvard, P. Gay, C. Guicheney

Research output: Contribution to journalArticleResearchpeer-review

36 Citations (Scopus)

Abstract

In a sample of 1.5 million hadronic decays of the Z collected by the ALEPH detector, a search is carried out for the decays B → D10(2420)l-νX and B → D2*0(2460)l-νX. The product branching ratio for D10 production is measured to be Br(b → B) × Br(B → D10l-νX) × Br(D10 → D*+π-) = (2.04 ± 0.58stat ± 0.34syst) × 10-3, and a 95% confidence level limit of Br(b → B) × Br(B → D2*0l-νX) × Br(D2*0 → D*+π-) ≤ 0.81 × 10-3 is obtained for D2*0 production. A topological search sensitive to the processes above, but also to wide resonances that decay to D*+π- and to non-resonant D*+π- production is also carried out, yielding Br(b→ B) ×Br(B →D*+π-l-νX)= (3.7 ± 1.0stat ± 0.7syst) × 10-3. Direct evidence of D*π production inconsistent with D10 and D2*0 in semileptonic B decay is presented. © 1995.
Original languageEnglish
Pages (from-to)103-114
JournalPhysics Letters B
Volume345
Issue number1
DOIs
Publication statusPublished - 2 Feb 1995

Fingerprint

Dive into the research topics of 'A study of D<sup>*+</sup>π<sup>-</sup> production in semileptonic B decay'. Together they form a unique fingerprint.

Cite this