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Measurement of the time dependence of $B^{0}-\bar B^{0}$ oscillations using inclusive dilepton events

B. Aubert 1 A. Boucham 1 D. Boutigny 1 I. de Bonis 1 J. Favier 1 J.M. Gaillard 1 F. Galeazzi 1 A. Jeremie 1 Y. Karyotakis 1 J.P. Lees 1 P. Robbe 1 V. Tisserand 1 K. Zachariadou 1 A. Palano G.P. Chen J.C. Chen N.D. Qi G. Rong P. Wang Y.S. Zhu G. Eigen P.L. Reinertsen B. Stugu B. Abbott G.S. Abrams A.W. Borgland A.B. Breon D.N. Brown J. Button-Shafer R.N. Cahn A.R. Clark Q. Fan M.S. Gill S.J. Gowdy Y. Groysman R.G. Jacobsen R.W. Kadel J. Kadyk L.T. Kerth S. Kluth J.F. Kral Céline Leclerc M.E. Levi T. Liu G. Lynch A.B. Meyer M. Momayezi P.J. Oddone A. Perazzo M. Pripstein N.A. Roe A. Romosan M.T. Ronan V.G. Shelkov P. Strother A.V. Telnov W.A. Wenzel P.G. Bright-Thomas T.J. Champion C.M. Hawkes A. Kirk S.W. O'Neale A.T. Watson N.K. Watson T. Deppermann H. Koch J. Krug M. Kunze B. Lewandowski K. Peters H. Schmuecker M. Steinke J.C. Andress N. Chevalier P.J. Clark N. Cottingham N. de Groot N. Dyce B. Foster A. Mass D. Wallom F.F. Wislon K. Abe C. Hearty T.S. Mattison J.A. Mckenna D. Thiessen B. Camanzi A.K. Mckemey J. Tinslay V.E. Blinov A.D. Bukin D.A. Bukin A.R. Buzykaev M.S. Dubrovin V.B. Golubev V.N. Ivanchenko A.A. Korol E.A. Kravchenko A.P. Onuchin A.A. Salnikov S.I. Serednyakov Y.I. Skovpen A.N. Yushkov A.J. Lankford M. Mandelkern D.P. Stoker A. Ahsan K. Arisaka C. Buchanan S. Chun J.G. Branson R. Faccini D.B. Macfarlane S. Rahatlou G. Raven V. Sharma C. Campagnari B. Dahmes P.A. Hart N. Kuznetsova S.L. Levy O. Long A. Lu J.D. Richman W. Verkerke M. Witherell S. Yellin J. Beringer D.E. Dorfan A. Eisner A. Frey A.A. Grillo M. Grothe C.A. Heusch R.P. Johnson W. Kroeger W.S. Lockman T. Pulliam H. Sadrozinski T. Schalk R.E. Schmitz B.A. Schumm A. Seiden M. Turri D.C. Williams E. Chen G.P. Dubois-Felsmann A. Dvoretskii D.G. Hitlin Y.G. Kolomensky S. Metzler J. Oyang F.C. Porter A. Ryd A. Samuel M. Weaver S. Yang R.Y. Zhu R. Aleksan G. de Domenico A. de Lesquen S. Emery A. Gaidot S.F. Ganzhur G. Hamel de Monchenault W. Kozanecki M. Langer G.W. London B. Mayer B. Serfass G. Vasseur C. Yeche M. Zito S. Devmal T.L. Geld S. Jayatilleke S.M. Jayatilleke G. Mancinelli B.T. Meadows M.D. Sokoloff J. Blouw M. Krishnamurthy A. Soffer W.H. Toki R.J. Wilson J. Zhang S. Fahey F. Gaede U. Nauenberg A. Olivas H. Park P. Rankin J. Roy S. Sen D.L. Wagner T. Brandt J. Brose G. Dahlinger M. Dickopp R.S. Dubitzky M.L. Kocian R. Muller-Pfefferkorn K.R. Schubert R. Schwierz B. Spaan L. Wilden L. Behr 2 D. Bernard 2 G.R. Bonneaud 2 F. Brochard 2 J. Cohen-Tanugi 2 S. Ferrag 2 E. Roussot 2 C. Thiebaux 2 G. Vasileiadis 2 M. Verderi 2 A. Anjomshoaa R. Bernet F. Di Lodovico F. Muheim S. Playfer J.E. Swain C. Bozzi S. Dittongo M. Folegani L. Piemontese E. Treadwell R. Baldini-Ferroli A. Calcaterra R. de Sangro D. Falciai G. Finocchiaro P. Patteri I.M. Peruzzi M. Piccolo A. Zallo S. Bagnasco A. Buzzo R. Contri G. Crosetti P. Fabbricatore S. Farinon M. Lo Vetere M. Macri M.R. Monge R. Musenich R. Parodi S. Passaggio F.C. Pastore C. Patrignani M.G. Pia C. Priano E. Robutti A. Santroni J. Cochran H.B. Crawley P.A. Fischer J. Lamsa W.T. Meyer E.I. Rosenberg R. Bartoldus T. Dignan R. Hamilton U. Mallik C. Angelini G. Batignani S. Bettarini M. Bondioli M. Carpinelli F. Forti M.A. Giorgi A. Lusiani M. Morganti E. Paoloni M. Rama G. Rizzo F. Sandrelli G. Simi G. Triggiani M. Benkebil 3 G. Grosdidier 3 C. Hast 3 A. Hoecker 3 V. Lepeltier 3 A.M. Lutz 3 Stéphane Plaszczynski 3 M.H. Schune 3 S. Trincaz-Duvoid 3 A. Valassi 3 G. Wormser 3 R.M. Bionta V. Brigljevic O. Fackler D. Fujino M. Mugge X. Shi T.J. Wenaus D.M. Wright C.R. Wuest M. Carroll J.R. Fry E. Gabathuler R. Gamet M. George M. Kay S. Mcmahon T.R. Mcmahon D.J. Payne C. Touramanis M.L. Aspinwall P.D. Dauncey I. Eschrich N.J.W. Gunawardane Roland Martin P. Sanders D. Smith D.E. Azzopardi J.J. Back P. Dixon P.F. Harrison P.B. Vidal M.I. Williams G. Cowan M.G. Green A. Kurup P. Mcgrath I. Scott D. Brown C.L. Davis Y. Li J. Pavlovich A. Trunov J. Allison R.J. Barlow J. Fullwood A. Khan G.D. Lafferty N. Savvas E.T. Simopoulos R.J. Thompson J.H. Weatherall C. Dallapiccola A. Farbin A. Jawahery V. Lillard J. Olsen D.A. Roberts B. Brau R. Cowan F. Taylor R.K. Yamamoto G. Blaylock K.T. Flood S.S. Hertzbach R. Kofler C.S. Lin S. Willocq J. Wittlin P. Bloom D.I. Britton M. Milek P.M. Patel J. Trischuk F. Lanni F. Palombo J.M. Bauer M. Booke L. Cremaldi R. Kroeger J. Reidy D. Sanders D.J. Summers J.F. Arguin J.-P. Martin J.Y. Nief R. Seitz P. Taras A. Woch V. Zacek H. Nicholson C.S. Sutton N. Cavallo G. de Nardo F. Fabozzi C. Gatto L. Lista D. Piccolo C. Sciacca M. Falbo J.M. Losecco T. Handler F. Colecchia F. Dal Corso G. Michelon M. Morandin M. Posocco R. Stroili E. Torassa C. Voci M. Benayoun 4 H. Briand 4 J. Chauveau 4 P. David 4 C. de la Vaissiere 4 L. del Buono 4 O. Hamon 4 F. Le Diberder 4 P. Leruste 4 J. Lory 4 F. Martinez-Vidal 4 L. Roos 4 J. Stark 4 S. Versille 4 P.F. Manfredi V. Re V. Speziali E.D. Frank L. Gladney Q.H. Guo J.H. Panetta M. Haire D. Judd K. Paick L. Turnbull D.E. Wagoner J. Albert C. Bula M.H. Kelsey C. Lu K.T. Mcdonald V. Miftakov S.F. Schaffner A.J.S. Smith A. Tumanov E.W. Varnes G. Cavoto F. Ferrarotto F. Ferroni K. Fratini E. Lamanna Emilio Leonardi M.A. Mazzoni S. Morganti G. Piredda F. Safai Tehrani M. Serra R. Waldi P.F. Jacques M. Kalelkar R.J. Plano T. Adye U. Egede B. Franek G.P. Gopal N. Copty M.V. Purohit F.X. Yumiceva I. Adam P.L. Anthony F. Anulli D. Aston K. Baird E. Bloom A.M. Boyarski F. Bulos G. Calderini M.R. Convery D.P. Coupal D.H. Coward J. Dorfan M. Doser W. Dunwoodie T. Glanzman G.L. Godfrey P. Grosso J.L. Hewett T. Himel M.E. Huffer W.R. Innes C.P. Jessop P. Kim U. Langenegger D.W.G.S. Leith S. Luitz V. Luth H.L. Lynch G. Manzin H. Marsiske S. Menke R. Messner K.C. Moffeit M. Morii R. Mount D.R. Muller C.P. O'Grady P. Paolucci S. Petrak H. Quinn B.N. Ratcliff S.H. Robertson L.S. Rochester A. Roodman T. Schietinger R.H. Schindler J. Schwiening G. Sciolla V.V. Serbo A. Snyder A. Soha S.M. Spanier A. Stahl D. Su M.K. Sullivan M. Talby H.A. Tanaka J. Vavra S.R. Wagner A.J.R. Weinstein W.J. Wisniewski C.C. Young P.R. Burchat C.H. Cheng D. Kirkby T.I. Meyer C. Roat A. de Silva R. Henderson W. Bugg H. Cohn E. Hart A.W. Weidemann T. Benninger J.M. Izen I. Kitayama X.C. Lou M. Turcotte F. Bianchi M. Bona B. Di Girolamo D. Gamba A. Smol D. Zanin L. Bosisio G. Della Ricca L. Lanceri A. Pompili P. Poropat M. Prest E. Vallazza G. Vaugnin R.S. Panvini C.M. Brown P.D. Jackson R. Kowalewski J.M. Roney H.R. Band E. Charles S. Dasu P. Elmer J.R. Johnson J. Nielsen W. Orejudos Y. Pan R. Prepost J. Walsh Z. Yu H. Zobernig
1 LAPP - Laboratoire d'Annecy de Physique des Particules
2 LLR - Laboratoire Leprince-Ringuet
3 LAL - Laboratoire de l'Accélérateur Linéaire
4 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
Abstract : A preliminary study of time dependence of B^0-anti-B^0 oscillations using dilepton events is presented. The flavor of the B meson is determined by the charge sign of the lepton. To separate signal leptons from cascade and fake leptons we have used a method which combines several discriminating variables in a neural network. The time evolution of the oscillations is studied by reconstructing the time difference between the decays of the B mesons produced by the Y(4S) decay. With an integrated luminosity of 7.7 fb-1 collected on resonance by BABAR at the PEP-II asymmetric B Factory, we measure the difference in mass of the neutral B eigenstates, Delta_mB0 to be (0.507+/-0.015+/-0.022) x 10^{12} hbar-s^{-1}.
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Conference papers
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http://hal.in2p3.fr/in2p3-00006097
Contributor : Claudine Bombar <>
Submitted on : Tuesday, September 19, 2000 - 4:41:02 PM
Last modification on : Saturday, December 19, 2020 - 11:32:02 AM

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LAL | CNRS | LAPP | LLR | LPNHE | UNIV-SAVOIE | IN2P3 | X-LLR | X | UPMC | X-DEP-PHYS | SORBONNE-UNIVERSITE | SU-SCIENCES | UNIV-PARIS7 | USPC | UNIV-PARIS | UP-SCIENCES | UGA | SU-TI

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B. Aubert, A. Boucham, D. Boutigny, I. de Bonis, J. Favier, et al.. Measurement of the time dependence of $B^{0}-\bar B^{0}$ oscillations using inclusive dilepton events. International Conference on High-Energy Physics 30 ICHEP 2000, Jul 2000, Osaka, Japan. pp.1-17. ⟨in2p3-00006097⟩

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