Phys. Rev. Lett.
80,
2762–2766
(1998)
New Measurement of B → D*π Branching Fractions
G. Brandenburg et al. (CLEO Collaboration)
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G. Brandenburg1, R. A. Briere1, Y. S. Gao1, D. Y.-J. Kim1, R. Wilson1, H. Yamamoto1, T. E. Browder2, F. Li2, Y. Li2, J. L. Rodriguez2, T. Bergfeld3, B. I. Eisenstein3, J. Ernst3, G. E. Gladding3, G. D. Gollin3, R. M. Hans3, E. Johnson3, I. Karliner3, M. A. Marsh3, M. Palmer3, M. Selen3, J. J. Thaler3, K. W. Edwards4a,4b, A. Bellerive5a,5b, R. Janicek5a,5b, D. B. MacFarlane5a,5b, K. W. McLean5a,5b, P. M. Patel5a,5b, A. J. Sadoff6, R. Ammar7, P. Baringer7, A. Bean7, D. Besson7, D. Coppage7, C. Darling7, R. Davis7, N. Hancock7, S. Kotov7, I. Kravchenko7, N. Kwak7, S. Anderson8, Y. Kubota8, M. Lattery8, S. J. Lee8, J. J. O'Neill8, S. Patton8, R. Poling8, T. Riehle8, V. Savinov8, A. Smith8, M. S. Alam9, S. B. Athar9, Z. Ling9, A. H. Mahmood9, H. Severini9, S. Timm9, F. Wappler9, A. Anastassov10, S. Blinov10,*, J. E. Duboscq10, K. D. Fisher10, D. Fujino10,†, R. Fulton10, K. K. Gan10, T. Hart10, K. Honscheid10, H. Kagan10, R. Kass10, J. Lee10, M. B. Spencer10, M. Sung10, A. Undrus10,‡, R. Wanke10, A. Wolf10, M. M. Zoeller10, B. Nemati11, S. J. Richichi11, W. R. Ross11, P. Skubic11, M. Wood11, M. Bishai12, J. Fast12, E. Gerndt12, J. W. Hinson12, N. Menon12, D. H. Miller12, E. I. Shibata12, I. P. J. Shipsey12, M. Yurko12, L. Gibbons13, S. D. Johnson13, Y. Kwon13, S. Roberts13, E. H. Thorndike13, C. P. Jessop14, K. Lingel14, H. Marsiske14, M. L. Perl14, S. F. Schaffner14, D. Ugolini14, R. Wang14, X. Zhou14, T. E. Coan14, V. Fadeyev15, I. Korolkov15, Y. Maravin15, I. Narsky15, V. Shelkov15, J. Staeck15, R. Stroynowski15, I. Volobouev15, J. Ye15, M. Artuso16, A. Efimov16, F. Frasconi16, M. Gao16, M. Goldberg16, D. He16, S. Kopp16, G. C. Moneti16, R. Mountain16, S. Schuh16, T. Skwarnicki16, S. Stone16, G. Viehhauser16, X. Xing16, J. Bartelt17, S. E. Csorna17, V. Jain17, S. Marka17, A. Freyberger18, R. Godang18, K. Kinoshita18, I. C. Lai18, P. Pomianowski18, S. Schrenk18, G. Bonvicini19, D. Cinabro19, R. Greene19, L. P. Perera19, G. J. Zhou19, B. Barish20, M. Chadha20, S. Chan20, G. Eigen20, J. S. Miller20, C. O'Grady20, M. Schmidtler20, J. Urheim20, A. J. Weinstein20, F. Würthwein20, D. M. Asner21, D. W. Bliss21, W. S. Brower21, G. Masek21, H. P. Paar21, V. Sharma21, J. Gronberg22, T. S. Hill22, R. Kutschke22, D. J. Lange22, S. Menary22, R. J. Morrison22, H. N. Nelson22, T. K. Nelson22, C. Qiao22, J. D. Richman22, D. Roberts22, A. Ryd22, M. S. Witherell22, R. Balest23, B. H. Behrens23, K. Cho23, W. T. Ford23, H. Park23, P. Rankin23, J. Roy23, J. G. Smith23, J. P. Alexander24, C. Bebek24, B. E. Berger24, K. Berkelman24, K. Bloom24, D. G. Cassel24, H. A. Cho24, D. M. Coffman24, D. S. Crowcroft24, M. Dickson24, P. S. Drell24, K. M. Ecklund24, R. Ehrlich24, R. Elia24, A. D. Foland24, P. Gaidarev24, B. Gittelman24, S. W. Gray24, D. L. Hartill24, B. K. Heltsley24, P. I. Hopman24, J. Kandaswamy24, N. Katayama24, P. C. Kim24, D. L. Kreinick24, T. Lee24, Y. Liu24, G. S. Ludwig24, J. Masui24, J. Mevissen24, N. B. Mistry24, C. R. Ng24, E. Nordberg24, M. Ogg24,§, J. R. Patterson24, D. Peterson24, D. Riley24, A. Soffer24, C. Ward24, M. Athanas25, P. Avery25, C. D. Jones25, M. Lohner25, C. Prescott25, J. Yelton25, and J. Zheng25 (CLEO Collaboration)
1Harvard University, Cambridge, Massachusetts 02138
2University of Hawaii at Manoa, Honolulu, Hawaii 96822
3University of Illinois, Champaign-Urbana, Illinois 61801
4aCarleton University, Ottawa, Ontario, Canada K1S 5B6
4band the Institute of Particle Physics, Canada
5aMcGill University, Montréal, Québec, Canada H3A 2T8
5band the Institute of Particle Physics, Canada
6Ithaca College, Ithaca, New York 14850
7University of Kansas, Lawrence, Kansas 66045
8University of Minnesota, Minneapolis, Minnesota 55455
9State University of New York at Albany, Albany, New York 12222
10Ohio State University, Columbus, Ohio 43210
11University of Oklahoma, Norman, Oklahoma 73019
12Purdue University, West Lafayette, Indiana 47907
13University of Rochester, Rochester, New York 14627
14Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309
15Southern Methodist University, Dallas, Texas 75275
16Syracuse University, Syracuse, New York 13244
17Vanderbilt University, Nashville, Tennessee 37235
18Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
19Wayne State University, Detroit, Michigan 48202
20California Institute of Technology, Pasadena, California 91125
21University of California, San Diego, La Jolla, California 92093
22University of California, Santa Barbara, California 93106
23University of Colorado, Boulder, Colorado 80309-0390
24Cornell University, Ithaca, New York 14853
25University of Florida, Gainesville, Florida 32611
Received 25 June 1997; published in the issue dated 30 March 1998
The decays ϒ(4S)→BB̅ , followed by B→D*π and D*→Dπ, permit reconstruction of all kinematic quantities that describe the sequence without reconstruction of the D, with reasonably low backgrounds. Using an integrated e+e- luminosity of 3.1 fb-1 accumulated at the ϒ(4S) by the CLEO-II detector, we report measurements of B(B̅ 0→D*+π-) = (2.81±0.11±0.21±0.05)×10-3 and B(B-→D*0π-) = (4.34±0.33±0.34±0.18)×10-3.
© 1998 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.80.2762
DOI:
10.1103/PhysRevLett.80.2762
*Permanent address: BINP, RU-630090 Novosibirsk, Russia. †Permanent address: Lawrence Livermore National Laboratory, Livermore, CA 94551. ‡ §Permanent address: University of Texas, Austin, TX 78712.
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