Phys. Rev. Lett.
90,
221801
(2003)
[7 pages]
Measurement of the Branching Fraction, and Bounds on the CP-Violating Asymmetries, of Neutral B Decays to D*±D∓
B. Aubert et al. The BABAR Collaboration
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B. Aubert1, R. Barate1, D. Boutigny1, J.-M. Gaillard1, A. Hicheur1, Y. Karyotakis1, J. P. Lees1, P. Robbe1, V. Tisserand1, A. Zghiche1, A. Palano2, A. Pompili2, J. C. Chen3, N. D. Qi3, G. Rong3, P. Wang3, Y. S. Zhu3, G. Eigen4, I. Ofte4, B. Stugu4, G. S. Abrams5, A. W. Borgland5, A. B. Breon5, D. N. Brown5, J. Button-Shafer5, R. N. Cahn5, E. Charles5, M. S. Gill5, A. V. Gritsan5, Y. Groysman5, R. G. Jacobsen5, R. W. Kadel5, J. Kadyk5, L. T. Kerth5, Yu. G. Kolomensky5, J. F. Kral5, G. Kukartsev5, C. LeClerc5, M. E. Levi5, G. Lynch5, L. M. Mir5, P. J. Oddone5, T. J. Orimoto5, M. Pripstein5, N. A. Roe5, A. Romosan5, M. T. Ronan5, V. G. Shelkov5, A. V. Telnov5, W. A. Wenzel5, T. J. Harrison6, C. M. Hawkes6, D. J. Knowles6, R. C. Penny6, A. T. Watson6, N. K. Watson6, T. Deppermann7, K. Goetzen7, H. Koch7, B. Lewandowski7, M. Pelizaeus7, K. Peters7, H. Schmuecker7, M. Steinke7, N. R. Barlow8, W. Bhimji8, J. T. Boyd8, N. Chevalier8, P. J. Clark8, W. N. Cottingham8, C. Mackay8, F. F. Wilson8, C. Hearty9, T. S. Mattison9, J. A. McKenna9, D. Thiessen9, P. Kyberd10, A. K. McKemey10, V. E. Blinov11, A. D. Bukin11, V. B. Golubev11, V. N. Ivanchenko11, E. A. Kravchenko11, A. P. Onuchin11, S. I. Serednyakov11, Yu. I. Skovpen11, E. P. Solodov11, A. N. Yushkov11, D. Best12, M. Chao12, D. Kirkby12, A. J. Lankford12, M. Mandelkern12, S. McMahon12, R. K. Mommsen12, W. Roethel12, D. P. Stoker12, C. Buchanan13, H. K. Hadavand14, E. J. Hill14, D. B. MacFarlane14, H. P. Paar14, Sh. Rahatlou14, U. Schwanke14, V. Sharma14, J. W. Berryhill15, C. Campagnari15, B. Dahmes15, N. Kuznetsova15, S. L. Levy15, O. Long15, A. Lu15, M. A. Mazur15, J. D. Richman15, W. Verkerke15, J. Beringer16, A. M. Eisner16, C. A. Heusch16, W. S. Lockman16, T. Schalk16, R. E. Schmitz16, B. A. Schumm16, A. Seiden16, M. Turri16, W. Walkowiak16, D. C. Williams16, M. G. Wilson16, J. Albert17, E. Chen17, G. P. Dubois-Felsmann17, A. Dvoretskii17, D. G. Hitlin17, I. Narsky17, F. C. Porter17, A. Ryd17, A. Samuel17, S. Yang17, S. Jayatilleke18, G. Mancinelli18, B. T. Meadows18, M. D. Sokoloff18, T. Barillari19, F. Blanc19, P. Bloom19, W. T. Ford19, U. Nauenberg19, A. Olivas19, P. Rankin19, J. Roy19, J. G. Smith19, W. C. van Hoek19, L. Zhang19, J. L. Harton20, T. Hu20, A. Soffer20, W. H. Toki20, R. J. Wilson20, J. Zhang20, D. Altenburg21, T. Brandt21, J. Brose21, T. Colberg21, M. Dickopp21, R. S. Dubitzky21, A. Hauke21, H. M. Lacker21, E. Maly21, R. Müller-Pfefferkorn21, R. Nogowski21, S. Otto21, K. R. Schubert21, R. Schwierz21, B. Spaan21, L. Wilden21, D. Bernard22, G. R. Bonneaud22, F. Brochard22, J. Cohen-Tanugi22, S. T’Jampens22, Ch. Thiebaux22, G. Vasileiadis22, M. Verderi22, R. Bernet23, A. Khan23, D. Lavin23, F. Muheim23, S. Playfer23, J. E. Swain23, J. Tinslay23, C. Borean24, C. Bozzi24, L. Piemontese24, A. Sarti24, E. Treadwell25, F. Anulli26,*, R. Baldini-Ferroli26, A. Calcaterra26, R. de Sangro26, D. Falciai26, G. Finocchiaro26, P. Patteri26, I. M. Peruzzi26,*, M. Piccolo26, A. Zallo26, A. Buzzo27, R. Contri27, G. Crosetti27, M. Lo Vetere27, M. Macri27, M. R. Monge27, S. Passaggio27, F. C. Pastore27, C. Patrignani27, E. Robutti27, A. Santroni27, S. Tosi27, S. Bailey28, M. Morii28, G. J. Grenier29, S.-J. Lee29, U. Mallik29, J. Cochran30, H. B. Crawley30, J. Lamsa30, W. T. Meyer30, S. Prell30, E. I. Rosenberg30, J. Yi30, M. Davier31, G. Grosdidier31, A. Höcker31, S. Laplace31, F. Le Diberder31, V. Lepeltier31, A. M. Lutz31, T. C. Petersen31, S. Plaszczynski31, M. H. Schune31, L. Tantot31, G. Wormser31, R. M. Bionta32, V. Brigljević32, C. H. Cheng32, D. J. Lange32, D. M. Wright32, A. J. Bevan33, J. R. Fry33, E. Gabathuler33, R. Gamet33, M. Kay33, D. J. Payne33, R. J. Sloane33, C. Touramanis33, M. L. Aspinwall34, D. A. Bowerman34, P. D. Dauncey34, U. Egede34, I. Eschrich34, G. W. Morton34, J. A. Nash34, P. Sanders34, G. P. Taylor34, J. J. Back35, G. Bellodi35, P. F. Harrison35, H. W. Shorthouse35, P. Strother35, P. B. Vidal35, G. Cowan36, H. U. Flaecher36, S. George36, M. G. Green36, A. Kurup36, C. E. Marker36, T. R. McMahon36, S. Ricciardi36, F. Salvatore36, G. Vaitsas36, M. A. Winter36, D. Brown37, C. L. Davis37, J. Allison38, R. J. Barlow38, A. C. Forti38, P. A. Hart38, F. Jackson38, G. D. Lafferty38, A. J. Lyon38, J. H. Weatherall38, J. C. Williams38, A. Farbin39, A. Jawahery39, D. Kovalskyi39, C. K. Lae39, V. Lillard39, D. A. Roberts39, G. Blaylock40, C. Dallapiccola40, K. T. Flood40, S. S. Hertzbach40, R. Kofler40, V. B. Koptchev40, T. B. Moore40, H. Staengle40, S. Willocq40, J. Winterton40, R. Cowan41, G. Sciolla41, F. Taylor41, R. K. Yamamoto41, D. J. J. Mangeol42, M. Milek42, P. M. Patel42, F. Palombo43, J. M. Bauer44, L. Cremaldi44, V. Eschenburg44, R. Kroeger44, J. Reidy44, D. A. Sanders44, D. J. Summers44, H. W. Zhao44, C. Hast45, P. Taras45, H. Nicholson46, C. Cartaro47, N. Cavallo47, G. De Nardo47, F. Fabozzi47,†, C. Gatto47, L. Lista47, P. Paolucci47, D. Piccolo47, C. Sciacca47, M. A. Baak48, G. Raven48, J. M. LoSecco49, T. A. Gabriel50, B. Brau51, T. Pulliam51, J. Brau52, R. Frey52, M. Iwasaki52, C. T. Potter52, N. B. Sinev52, D. Strom52, E. Torrence52, F. Colecchia53, A. Dorigo53, F. Galeazzi53, M. Margoni53, M. Morandin53, M. Posocco53, M. Rotondo53, F. Simonetto53, R. Stroili53, G. Tiozzo53, C. Voci53, M. Benayoun54, H. Briand54, J. Chauveau54, P. David54, Ch. de la Vaissière54, L. Del Buono54, O. Hamon54, Ph. Leruste54, J. Ocariz54, M. Pivk54, L. Roos54, J. Stark54, P. F. Manfredi55, V. Re55, L. Gladney56, Q. H. Guo56, J. Panetta56, C. Angelini57, G. Batignani57, S. Bettarini57, M. Bondioli57, F. Bucci57, G. Calderini57, M. Carpinelli57, F. Forti57, M. A. Giorgi57, A. Lusiani57, G. Marchiori57, F. Martinez-Vidal57, M. Morganti57, N. Neri57, E. Paoloni57, M. Rama57, G. Rizzo57, F. Sandrelli57, G. Triggiani57, J. Walsh57, M. Haire58, D. Judd58, K. Paick58, D. E. Wagoner58, N. Danielson59, P. Elmer59, C. Lu59, V. Miftakov59, J. Olsen59, A. J. S. Smith59, E. W. Varnes59, F. Bellini60, G. Cavoto59,60, D. del Re60, R. Faccini14,60, F. Ferrarotto60, F. Ferroni60, M. Gaspero60, E. Leonardi60, M. A. Mazzoni60, S. Morganti60, M. Pierini60, G. Piredda60, F. Safai Tehrani60, M. Serra60, C. Voena60, S. Christ61, G. Wagner61, R. Waldi61, T. Adye62, N. De Groot62, B. Franek62, N. I. Geddes62, G. P. Gopal62, E. O. Olaiya62, S. M. Xella62, R. Aleksan63, S. Emery63, A. Gaidot63, S. F. Ganzhur63, P.-F. Giraud63, G. Hamel de Monchenault63, W. Kozanecki63, M. Langer63, G. W. London63, B. Mayer63, G. Schott63, G. Vasseur63, Ch. Yeche63, M. Zito63, M. V. Purohit64, A. W. Weidemann64, F. X. Yumiceva64, D. Aston65, R. Bartoldus65, N. Berger65, A. M. Boyarski65, O. L. Buchmueller65, M. R. Convery65, D. P. Coupal65, D. Dong65, J. Dorfan65, W. Dunwoodie65, R. C. Field65, T. Glanzman65, S. J. Gowdy65, E. Grauges-Pous65, T. Hadig65, V. Halyo65, T. Hryn’ova65, W. R. Innes65, C. P. Jessop65, M. H. Kelsey65, P. Kim65, M. L. Kocian65, U. Langenegger65, D. W. G. S. Leith65, S. Luitz65, V. Luth65, H. L. Lynch65, H. Marsiske65, S. Menke65, R. Messner65, D. R. Muller65, C. P. O’Grady65, V. E. Ozcan65, A. Perazzo65, M. Perl65, S. Petrak65, B. N. Ratcliff65, S. H. Robertson65, A. Roodman65, A. A. Salnikov65, T. Schietinger65, R. H. Schindler65, J. Schwiening65, G. Simi65, A. Snyder65, A. Soha65, J. Stelzer65, D. Su65, M. K. Sullivan65, H. A. Tanaka65, J. Va’vra65, S. R. Wagner65, M. Weaver65, A. J. R. Weinstein65, W. J. Wisniewski65, D. H. Wright65, C. C. Young65, P. R. Burchat66, T. I. Meyer65, C. Roat66, S. Ahmed67, W. Bugg68, M. Krishnamurthy68, S. M. Spanier68, R. Eckmann69, H. Kim69, J. L. Ritchie69, R. F. Schwitters69, J. M. Izen70, I. Kitayama70, X. C. Lou70, F. Bianchi71, M. Bona71, D. Gamba71, L. Bosisio72, G. Della Ricca72, S. Dittongo72, S. Grancagnolo72, L. Lanceri72, P. Poropat72,‡, L. Vitale72, G. Vuagnin72, R. S. Panvini73, Sw. Banerjee74, C. M. Brown74, D. Fortin74, P. D. Jackson74, R. Kowalewski74, J. M. Roney74, H. R. Band75, S. Dasu75, M. Datta75, A. M. Eichenbaum75, H. Hu75, J. R. Johnson75, R. Liu75, F. Di Lodovico75, A. K. Mohapatra75, Y. Pan75, R. Prepost75, S. J. Sekula75, J. H. von Wimmersperg-Toeller75, J. Wu75, S. L. Wu75, Z. Yu75, and H. Neal76 (The BABAR Collaboration)
1Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France
2Università di Bari, Dipartimento di Fisica and INFN, I-70126 Bari, Italy
3Institute of High Energy Physics, Beijing 100039, China
4University of Bergen, Institute of Physics, N-5007 Bergen, Norway
5Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
6University of Birmingham, Birmingham B15 2TT, United Kingdom
7Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany
8University of Bristol, Bristol BS8 1TL, United Kingdom
9University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
10Brunel University, Uxbridge, Middlesex UB8 3PH, United Kingdom
11Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia
12University of California at Irvine, Irvine, California 92697, USA
13University of California at Los Angeles, Los Angeles, California 90024, USA
14University of California at San Diego, La Jolla, California 92093, USA
15University of California at Santa Barbara, Santa Barbara, California 93106, USA
16University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
17California Institute of Technology, Pasadena, California 91125, USA
18University of Cincinnati, Cincinnati, Ohio 45221, USA
19University of Colorado, Boulder, Colorado 80309, USA
20Colorado State University, Fort Collins, Colorado 80523, USA
21Technische Universität Dresden, Institut für Kern- und Teilchenphysik, D-01062 Dresden, Germany
22Ecole Polytechnique, LLR, F-91128 Palaiseau, France
23University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
24Università di Ferrara, Dipartimento di Fisica and INFN, I-44100 Ferrara, Italy
25Florida A&M University, Tallahassee, Florida 32307, USA
26Laboratori Nazionali di Frascati dell’INFN, I-00044 Frascati, Italy
27Università di Genova, Dipartimento di Fisica and INFN, I-16146 Genova, Italy
28Harvard University, Cambridge, Massachusetts 02138, USA
29University of Iowa, Iowa City, Iowa 52242, USA
30Iowa State University, Ames, Iowa 50011-3160, USA
31Laboratoire de l’Accélérateur Linéaire, F-91898 Orsay, France
32Lawrence Livermore National Laboratory, Livermore, California 94550, USA
33University of Liverpool, Liverpool L69 3BX, United Kingdom
34University of London, Imperial College, London SW7 2BW, United Kingdom
35Queen Mary, University of London, E1 4NS, United Kingdom
36University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom
37University of Louisville, Louisville, Kentucky 40292, USA
38University of Manchester, Manchester M13 9PL, United Kingdom
39University of Maryland, College Park, Maryland 20742, USA
40University of Massachusetts, Amherst, Massachusetts 01003, USA
41Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, Massachusetts 02139, USA
42McGill University, Montréal, QC, Canada H3A 2T8
43Università di Milano, Dipartimento di Fisica and INFN, I-20133 Milano, Italy
44University of Mississippi, University, Mississippi 38677, USA
45Université de Montréal, Laboratoire René J. A. Lévesque, Montréal, QC, Canada H3C 3J7
46Mount Holyoke College, South Hadley, Massachusetts 01075, USA
47Università di Napoli Federico II, Dipartimento di Scienze Fisiche and INFN, I-80126, Napoli, Italy
48NIKHEF, National Institute for Nuclear Physics and High Energy Physics, 1009 DB Amsterdam, The Netherlands
49University of Notre Dame, Notre Dame, Indiana 46556, USA
50Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
51Ohio State University, Columbus, Ohio 43210, USA
52University of Oregon, Eugene, Oregon 97403, USA
53Università di Padova, Dipartimento di Fisica and INFN, I-35131 Padova, Italy
54Universités Paris VI et VII, Lab de Physique Nucléaire H. E., F-75252 Paris, France
55Università di Pavia, Dipartimento di Elettronica and INFN, I-27100 Pavia, Italy
56University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
57Università di Pisa, Dipartimento di fisica, Scuola Normale Superiore and INFN, I-56010 Pisa, Italy
58Prairie View A&M University, Prairie View, Texas 77446, USA
59Princeton University, Princeton, New Jersey 08544, USA
60Università di Roma La Sapienza, Dipartimento di Fisica and INFN, I-00185 Roma, Italy
61Universität Rostock, D-18051 Rostock, Germany
62Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, United Kingdom
63DAPNIA, Commissariat à l’Energie Atomique/Saclay, F-91191 Gif-sur-Yvette, France
64University of South Carolina, Columbia, South Carolina 29208, USA
65Stanford Linear Accelerator Center, Stanford, California 94309, USA
66Stanford University, Stanford, California 94305-4060, USA
67State University of New York, Albany, New York 12222, USA
68University of Tennessee, Knoxville, Tennessee 37996, USA
69University of Texas at Austin, Austin, Texas 78712, USA
70University of Texas at Dallas, Richardson, Texas 75083, USA
71Università di Torino, Dipartimento di Fisica Sperimentale and INFN, I-10125 Torino, Italy
72Università di Trieste, Dipartimento di Fisica and INFN, I-34127 Trieste, Italy
73Vanderbilt University, Nashville, Tennessee 37235, USA
74University of Victoria, Victoria, British Columbia, Canada V8W 3P6
75University of Wisconsin, Madison, Wisconsin 53706, USA
76Yale University, New Haven, Connecticut 06511, USA
Received 5 March 2003; published 5 June 2003
We present measurements of the branching fraction and CP-violating asymmetries for neutral B decays to D*±D∓. The measurement uses a data sample of approximately 88×106 Υ(4S)→BB̅ decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy e+-e- collider. By fully reconstructing the D*±D∓ decay products, we measure the branching fraction to be (8.8±1.0±1.3)×10-4 and the time-integrated CP-violating asymmetry between the rates to D*-D+ and D*+D- to be A=-0.03±0.11±0.05. We also measure the time-dependent CP-violating asymmetry parameters to be S-+=-0.24±0.69±0.12, C-+=-0.22±0.37±0.10 for B→D*-D+ and S+-=-0.82±0.75±0.14, C+-=-0.47±0.40±0.12 for B→D*+D-. In each case, the first error is statistical and the second error is systematic.
© 2003 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.90.221801
DOI:
10.1103/PhysRevLett.90.221801
PACS:
13.25.Hw, 11.30.Er, 12.15.Hh
*Also with Università di Perugia, Perugia, Italy. †Also with Università della Basilicata, Potenza, Italy. ‡Deceased.
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