Measurement of the B0B0 mixing parameter and the Z → bb forward-backward asymmetry
Maurizio Acciarri,Alia G. Adam,Oscar S. Adri��ni,M. Aguilar-Ben��tez,Steven P. Ahlen,Juan Alcaraz,Alberto Aloisio,George O. Alverson,M. G. Alviggi, Giovanni Ambrosi,Q. An,Hans B. Anderhub,Arthur L. Anderson, V. P. Andreev,Tatiana Angelescu,L. Antonov,D. Antreasyan,G. D. Alkhazov,Pedro Arce,A. S. Arefiev,Tofigh Azemoon,Tariq Aziz,P. V K S Baba,Paolo Bagnaia,Jon A. Bakken,L��szl�� A. Baksay,Robert C. Ball,Sw W. Banerjee,K��roly Banicz,R. Barill��re,Luciano M. Barone,Andrea Baschirotto,Maurizio Basile, Roberto Battiston,Aurelio Bay,Francesco Becattini,Ulrich J. Becker,F. Behner,Gy L L Bencze,J. Berdugo,P. Berges,Bruna Bertucci,Botio L. Betev,Maurizio Biasini,Adrian Biland,Gian Mario Bilei,Romano Bizzarri,JJ J. Blaising,GJ J. Bobbink,B. R. Bock,Albrecht B?hm,Bruno Borgia,Dimitri Bourilkov,Maurice H. Bourquin, D. Boutigny,B. T. Bouwens,E. Brambilla,James G. Branson,Vuko Brigljevi?,Ian C. Brock,Melynda L. Brooks,Adam J. Bujak,Joseph D. B��rger,WJ J. Burger,C. Burgos,Jerome K. Busenitz,A. Buytenhuijs,A. A. Bykov,Xu Cai,Michael Capell,G. Cara Romeo,Mario P. Caria,Gianpaolo P. Carlino,Annamaria M. Cartacci,Jorge Casaus,Rinaldo Castello,Nicola Cavallo, M. Cerrada,F. Cesaroni,M. Chamizo Chamizo,Yun Chang,U. K. Chaturvedi,M. Chemarin,Augustine E. Chen, Chang Chen, G. M. Chen,Guomeng Chen,Hui Chen,Hesheng Chen, M. L. Chen,G. V. Chiefari,ChihYung Chien,MyoungTaek Choi,Suhurk Chung,Luisa Cifarelli,Federico Cindolo, Carlo Civinini,I. Clare,Robert M. Clare,Thomas E. Coan,Hans O. Cohn,Guy G. Coignet, N. Colino,Silvia Costantini,F. Cotorobai,Bego?a De La Cruz,X. T. Cui,X. Y. Cui,Tiesheng Dai, Raffaello D'Alessandro,Riccardo De Asmundis,A. Degr��, K. Deiters,Ervin D��nes,Peter Denes,Francesco De Notaristefani,Daryl D. DiBitonto,Marcella Diemoz,H. R. Dimitrov,Carla Dionisi,Michael Dittmar,Lubomir Djambazov,Mar��a Teresa Dova,E. Drago,Dominique Duchesneau,Pieter Duinker,Ignacio Dur��n,Sajan Easo,Houmani El Mamouni,Arnold Engler,FJ J. Eppling,F. C. Ern��,P. Extermann,R. Fabbretti,M. Fabre,Speranza Falciano,A. Favara, J. Fay,Marta Felcini,T. Ferguson,Daniel R. Fernandez,G. Fernandez, Fernando Ferroni,Harm S. Fesefeldt,Emanuele Fiandrini,John H. Field,Frank Filthaut,PH H. Fisher,G. Forcon��,L. Fredj,Kai Fre��denreich,M. Gailloud,Yu U. Galaktionov,Elisabetta Gallo,Som N. Ganguli,Pablo Garc��a-Abia,Simonetta Gentile,J. Gerald,N. Gheordanescu, Stefano Giagu,Steven Goldfarb,Zhufang Gong,Enrique M. Gonz��lez,A. K. Gougas,D. Goujon,Giorgio Gratta,M. W. Gruenewald,Chun Gu,M. Guanziroli,Vijay Kumar Gupta,Atul Gurtu,H. Richard Gustafson,LJ J. Gutay,Asma T. Hasan,D. Hauschildt,JingTang He, Thomas Hebbeker,M. H��bert,Alain E. Herv��, K. Hilgers,Hans Hofer,Haffez R. Hoorani,Suen Hou,G. Q. Hu, B. Ille,M. M. Ilyas,Vincenzo Innocente,H. Janssen,Bingnian Jin,Lawrence W. Jones,Paul De Jong,I. Josa-Mutuberr��a, A. Kasser,R. A. Khan,Yu A. Kamyshkov,P. Kapinos,Jon S. Kapustinsky,Yannis Karyotakis,Maninder Pal Kaur,S. Khokhar,Maria Novella Kienzle-Focacci,Dongwook Kim,JaeKwan Kim,Seungchul Kim,Yeonggyun Kim,Wayne Wayne Kinnison,A. G. Kirkby,David Kirkby, Kirsch,Wolfram K. Kittel,Alexei Klimentov,Adriaan C. K?nig,E. N. Koffeman,O. Kornadt,Vladimir Koutsenko,A. A. Koulbardis,Robert W. Kraemer,Thomas Kr?mer,V. R. Krastev,W. Krenz,H. Kuijten,Krishna S. Kumar,A. V. Kunin,P. Ladr��n De Guevara,Gregorio Landi,D. L?nske,Salvatore Lanzano,Alexei I. Lebedev,Paul L G Lebrun,Pierre Lecomte,Paul R. Lecoq,Pierre Le Coultre,David Lee,Jaeseung Lee,Kwyro Lee,I. D. Leedom,Charles Leggett,Jean Marc Le Goff,R. Leiste,Massimo Lenti,Emanuele Leonardi,Peter M. Levtchenko, Cheng Li,R. W T Lin, F. L. Linde,B. Lindemann,Luca L��sta,Yong Li��,Wolfgang Lohmann,Egidio Longo,Wei L��,Yusheng L��,J. M. Lubbers,K. L��belsmeyer,Claudio Luci,David Luckey,Lucio Ludovici,Lamberto Luminari,Werner L��stermann,Wengan Ma,Michael J. MacDermott,Luca Malgeri,R. Malik,A. Malinin,C. Ma?��,Manat Maolinbay,P. A. Marchesini,Fr��d��rique Marion, Alexandru A. Mar��n,J. P. Martin, Frank Silvio Marzano,Graziano G G Massaro, ,Patricia L. McBride,Timothy J. McMahon,D. McNally,Marcel Merk,Leonardo Merola, M. Meschini,WJ J. Metzger,Y. Mi,A. C. Mihul, G. B. Mills,Y. Mir,Giovanni Mirabelli,Joachim Mnich,Marianne O. M?ller,V. Monaco,Bianca Monteleoni,R. Morand,S. Morganti,N. E. Moulai,Richard P. Mount,Stefan E. M��ller,Elem��r Nagy,M. Napolitano,Francesca Nessi-Tedaldi,Harvey B. Newman,M. A. Niaz,Alex Nippe,Hannelies Nowak, Giovanni C. Organtini,D. Pandoulas,Simone Paoletti,Pierluigi S. Paolucci,G. Pascale, Giovanni Passaleva, S. Patricelli,Thomas C. Paul,M. Pauluzzi,Christoph Paus,Felicitas Pa��ss,YJ Pei,Simonetta Pensotti,Denis Perret-Gallix,Aihud Pevsner,Davide Piccolo,Marco Pieri,J. C. Pinto,PA A. Pirou��,Franz Plasil,Vassili V. Plyaskin,Martin Pohl,V. Pojidaev,Hans Postema,Nicolas Produit,Jun Qian,K. N. Qureshi,Raju Srinivasa Raghavan,Ghita Rahal-Callot, Rancoita,M. Rattaggi, Raven,Panos A. Razis,Kenneth Francis Read,M. Redaelli,Daning Ren,Zhongliang Ren,Marco Rescigno,Stephen Reucroft,A. Ricker,Sabine Riemann,Bill C. Riemers,Keith Riles,O. Rind,H. A. Rizvi,Shinrae Ro,A. Robohm,F. J. Rodriguez,Byron P. Roe,M. R?hner,S. R?hner,Luciano Romero,Sylvie Rosier-Lees,R. Rosmalen,Ph Rosselet,W. van Rossum,Simon Roth,Andr�� Rubbia,J. Alberto Rubio,Hans Rykaczewski,Martin Sachwitz,J. M. Salicio,Jesus M. Salicio,Eusebio S��nchez,G. S. Sanders,Attilio Santocchia,Miltiadis E. Sarakinos,G. Sartorelli,Manfred Sassowsky,G��rard Sauvage,Christoph Sch?fer,V. A. Schegelsky,David W. Schmitz,P. Schmitz,Marc A. Schneegans,N. Scholz,Herwig F. Schopper,DJ J. Schotanus,S. Shotkin,Heinz Juergen Schreiber,J. Shukla,R. Schulte,K. Schultze,J. Schwenke, G. Schwering,C. Sciacca,Iain I. Scott,R. Sehgal,Paul Gerhard Seiler,J. Cl Sens, Leonello Servoli,I. Sheer,S. Shevchenko,X. R. Shi,E. Shumilov,V. Shoutko,Dongchul Son, Andr�� Sopczak,V. Soulimov,C. Spartiotis,T. Spickermann,Piero Spillantini,Malcolm F. Steuer,David P. Stickland,F. Sticozzi,Howard Stone,Karl Strauch, ,G. G. Sultanov,La-Zhen Sun,R. G F Susinno,Henry Suter,John D. Swain,A. A. Syed,Xiaowei Tang,Lucas L. Taylor,R. Timellini,Samuel C C Ting,Steve Ting,O. Toker,Manfred Tonutti,Suresh C. Tonwar,J��zsef J. T��th,G. Trowitzsch,Andre? M. Tsaregorodtsev,Georgios Tsipolitis,Christopher G. Tully,Tuure Tuuva,J��rgen Ulbricht,L��szl�� Urb��n,Ulrich Uwer,Enzo Valente,Remy T. Van De Walle,I. Vetlitsky,Gert M. Viertel,P. Vikas,U. Vikas,M. Vivargent,Helmut R. Vogel,Hans G. Vogt,Igor A. Vorobiev,An A. Vorobyov,L. Vuilleumier,M. Wadhwa,Wolfgang Wallraff,Jianchun Wang,Xiaolian Wang,Yifang Wang,Zhaomin Wang,T. A. Weber,J?rg Mathias Weber,R. Weill,Carlos Willmott,F. Wittgenstein,Dennis H. Wright,Shouxiang Wu,St Wynhoff,Zizong Xu,Bin Yang,Changgen Yang,GuiAn Yang,Xueyi Yao,C. H. Ye,Jian Ye,Qiang Ye,S. C. Yeh,J. M. You,N. Yunus,M. Yzerman,Carla Zaccardelli,P. Zemp,Ming Zeng,Yu Zeng,Dehong Zhang,Ziping Zhang,R. B. Zhou,GuangJing Zhou,JianFeng Zhou,Renyuan Zhu,Antonino Zichichi,Bob C C Van Der Zwaan
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics（1994）
Cited 18|Views47
Abstract
We have measured the time integrated B0-B?0 mixing parameter and the forward-backward asymmetry in the process e+e- �� bb? using hadronic events containing muons or electrons. The data sample corresponds to 1,044,000 hadronic decays of the Z. From a fit to the momentum and transverse momentum distributions for single lepton and dilepton events, we have determined the B0-B?0 mixing parameter to be ��B = 0.123 �� 0.012 (stat.) �� 0.008 (sys.), and the bb? forward-backward asymmetry at the effective center-of-mass energy ��s = 91.30GeV to be Abb? = 0.087 �� 0.011 (stat.) �� 0.004 (sys.) This measurement corresponds to a value of the effective electroweak mixing angle of sin2��?W = 0.2335 �� 0.0021.
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