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Production rate and decay lifetime measurements of Bs0 mesons at LEP using Ds and ϕ mesons
Authors
P. Abreu Adam, W. Adye, T. Agasi, E. Aleksan, R. Alekseev, G.D. Algeri, A. Almehed, S. Alvsvaag, S.J. Amaldi, U. Andreazza, A. Antilogus, P. Apel, W.-D. Apsimon, R.J. Arnoud, Y. Åsman, B. Augustin, J.-E. Augustinus, A. Baillon, P. Bambade, P. Barao, F. Barate, R. Barbiellini, G. Bardin, D.Y. Barker, G.J. Baroncelli, A. Barring, O. Barrio, J.A. Bates, M.J. Battaglia, M. Baubillier, M. Becks, K.-H. Begalli, M. Beilliere, P. Belokopytov, Yu. Beltran, P. Benedic, D. Benvenuti, A.C. Berggren, M. Bertrand, D. Bianchi, F. Bigi, M. Bilenky, M.S. Billoir, P. Bjarne, J. Bloch, D. Blocki, J. Blyth, S. Bocci, V. Bogolubov, P.N. Bolognese, T. Bonesini, M. Bonivento, W. Booth, P.S.L. Borisov, G. Borner, H. Bosio, C. Bostjancic, B. Bosworth, S. Botner, O. Bouquet, B. Bourdarios, C. Bowcock, T.J.V. Bozzo, M. Braibant, S. Branchini, P. Brand, K.D. Brenner, R.A. Briand, H. Bricman, C. Brillaut, L. Brown, R.C.A. Brunet, J.-M. Budziak, A. Bugge, L. Buran, T. Burmeister, H. Buys, A. Buytaert, J.A.M.A. Caccia, M. Calvi, M. Rozas, A.J.C. Campion, R. Camporesi, T. Canale, V. Cankocak, K. Cao, F. Carena, F. Carroll, L. Caso, C. Gimenez, M.V.C. Cattai, A. Cavallo, F.R. Cerrito, L. Chabaud, V. Chan, A. Chapkin, M. Charpentier, Ph. Chaussard, L. Chauveau, J. Checchia, P. Chelkov, G.A. Chevalier, L. Chliapnikov, P. Chorowicz, V. Chrin, J.T.M. Cindro, V. Collins, P. Contreras, J.L. Contri, R. Cortina, E. Cosme, G. Couchot, F. Crawley, H.B. Crennell, D. Crosetti, G. Maestro, J.C. Czellar, S. Dahl-Jensen, E. Dahm, J. Dalmagne, B. Dam, M. Damgaard, G. Daubie, E. Daum, A. Dauncey, P.D. Davenport, M. Davies, J. Da Silva, W. Defoix, C. Delpierre, P. Demaria, N. De Angelis, A. De Boeck, H. De Boer, W. De Brabandere, S. De Clerq, C. De Fez Laso, M.D.M. De La Vaissiere, C. De Lotto, B. De Min, A. Dijkstra, H. Di Ciaccio, L. Dolbeau, J. Donszelmann, M. Doroba, K. Dracos, M. Drees, J. Dris, M. Dufour, Y. Dupont, F. Edsall, D. Eek, L.-O. Eerola, P.A.-M. Ehret, R. Ekelof, T. Ekspong, G. Peisert, A.E. Elsing, M. Engel, J.-P. Ershaidat, N. Santo, M.E. Fassouliotis, D. Feindt, M. Ferrer, A. Filippas, T.A. Firestone, A. Foeth, H. Fokitis, E. Fontanelli, F. Forbes, K.A.J. Fousset, J.-L. Francon, S. Franek, B. Frenkiel, P. Fries, D.C. Frodesen, A.G. Fruhwirth, R. Fulda-Quenzer, F. Furstenau, H. Fuster, J. Gamba, D. Garcia, C. Garcia, J. Gaspar, C. Gasparini, U. Gavillet, Ph. Gazis, E.N. Gerber, J.-P. Giacomelli, P. Gillespie, D. Gokieli, R. Golob, B. Golovatyuk, V.M. Gomez Y Cadenas, J.J. Gopal, G. Gorn, L. Gorski, M. Gracco, V. Grant, A. Grard, F. Graziani, E. Grosdidier, G. Gross, E. Grossetete, B. Gunnarsson, P. Guy, J. Haedinger, U. Hahn, F. Hahn, M. Hahn, S. Haider, S. Hajduk, Z. Hakansson, A. Hallgren, A. Hamacher, K. Hamel De Monchenault, G. Hao, W. Harris, F.J. Hedberg, V. Henkes, T. Henriques, R. Hernandez, J.J. Hernando, J.A. Herquet, P. Herr, H. Hessing, T.L. Hietanen, I. Higgins, C.O. Higon, E. Hilke, H.J. Hill, T.S. Hodgson, S.D. Hofmokl, T. Holmgren, S.-O. Holt, P.J. Holthuizen, D. Honore, P.F. Houlden, M. Hrubec, J. Huet, K. Hultqvist, K. Ioannou, P. Iversen, P.-S. Jackson, J.N. Jacobsson, R. Jalocha, P. Jarlskog, G. Jarry, P. Jean-Marie, B. Johansson, E.K. Jonker, M. Jonsson, L. Juillot, P. Kalkanis, G. Kalmus, G. Kapusta, F. Karlsson, M. Karvelas, E. Katsanevas, S. Katsoufis, E.C. Keranen, R. Khomenko, B.A. Khovanski, N.N. King, B. Kjaer, N.J. Klein, H. Klovning, A. Kluit, P. Koch-Mehrin, A. Koehne, J.H. Koene, B. Kokkinias, P. Koratzinos, M. Korcyl, K. Korytov, A.V. Kostioukhine, V. Kourkoumelis, C. Kouznetsov, O. Kramer, P.H. Krammer, M. Kreuter, C. Krolikowski, J. Kronkvist, I. Kucewicz, W. Kulka, K. Kurvinen, K. Lacasta, C. Lambropoulos, C. Lamsa, J.W. Lanceri, L. Langefeld, P. Lapin, V. Last, I. Laugier, J.-P. Lauhakangas, R. Leder, G. Ledroit, F. Leitner, R. Lemoigne, Y. Lemonne, J. Lenzen, G. Lepeltier, V. Lesiak, T. Levy, J.M. Lieb, E. Liko, D. Lindgren, J. Lindner, R. Lippi, I. Loerstad, B. Lokajicek, M. Loken, J.G. Lopez-Fernandez, A. Lopez Aguera, M.A. Los, M. Loukas, D. Lozano, J.J. Lutz, P. Lyons, L. Maehlum, G. Maillard, J. Maio, A. Maltezos, A. Mandl, F. Marco, J. Margoni, M. Marin, J.-C. Markou, A. Maron, T. Marti, S. Martinez-Rivero, C. Martinez-Vidal, F. Matorras, F. Matteuzzi, C. Matthiae, G. Mazzucato, M. Mc Cubbin, M. McKay, R. McNulty, R. Medbo, J. Meroni, C. Meyer, W.T. Michelotto, M. Mikulec, I. Mirabito, L. Mitaroff, W.A. Mitselmakher, G.V. Mjoernmark, U. Moa, T. Moeller, R. Moenig, K. Monge, M.R. Morettini, P. Mueller, H. Murray, W.J. Myatt, G. Navarria, F.L. Negri, P. Nemecek, S. Neumann, W. Nicolaidou, R. Nielsen, B.S. Nijjhar, B. Nikolaenko, V. Nilsen, P.E.S. Niss, P. Nomerotski, A. Obraztsov, V. Olshevski, A.G. Orava, R. Ostankov, A. Osterberg, K. Ouraou, A. Paganoni, M. Pain, R. Palka, H. Papadopoulou, Th.D. Pape, L. Parodi, F. Passeri, A. Pegoraro, M. Pennanen, J. Peralta, L. Perevozchikov, V. Pernegger, H. Pernicka, M. Perrotta, A. Petridou, C. Petrolini, A. Piana, G. Pierre, F. Pimenta, M. Plaszczynski, S. Podobrin, O. Pol, M.E. Polok, G. Poropat, P. Pozdniakov, V. Privitera, P. Pullia, A. Radojicic, D. Ragazzi, S. Rahmani, H. Rames, J. Ratoff, P.N. Read, A.L. Reale, M. Rebecchi, P. Redaelli, N.G. Regler, M. Reid, D. Renton, P.B. Resvanis, L.K. Richard, F. Richardson, J. Ridky, J. Rinaudo, G. Roditi, I. Romero, A. Roncagliolo, I. Ronchese, P. Ronnqvist, C. Rosenberg, E.I. Rosso, E. Rovelli, T. Ruckstuhl, W. Ruhlmann-Kleider, V. Ruiz, A. Saarikko, H. Sacquin, Y. Sajot, G. Salt, J. Sanchez, J. Sannino, M. Schael, S. Schneider, H. Schyns, M.A.E. Sciolla, G. Scuri, F. Segar, A.M. Seitz, A. Sekulin, R. Sessa, M. Seufert, R. Shellard, R.C. Siccama, I. Siegrist, P. Simonetti, S. Simonetto, F. Sisakian, A.N. Skjevling, G. Smadja, G. Smirnov, N. Smirnova, O. Smith, G.R. Sosnowski, R. Souza-Santos, D. Spassoff, T. Spiriti, E. Squarcia, S. Staeck, H. Stanescu, C. Stapnes, S. Stavropoulos, G. Stichelbaut, F. Stocchi, A. Strauss, J. Straver, J. Strub, R. Stugu, B. Szczekowski, M. Szeptycka, M. Szymanski, P. Tabarelli, T. Tchikilev, O. Theodosiou, G.E. Tilquin, A. Timmermans, J. Timofeev, V.G. Tkatchev, L.G. Todorov, T. Toet, D.Z. Toker, O. Tomaradze, A. Tome, B. Torassa, E. Tortora, L. Treille, D. Trischuk, W. Tristram, G. Troncon, C. Tsirou, A. Tsyganov, E.N. Turluer, M.-L. Tuuva, T. Tyapkin, I.A. Tyndel, M. Tzamarias, S. Ueberschaer, B. Ueberschaer, S. Ullaland, O. Uvarov, V. Valenti, G. Vallazza, E. Valls Ferrer, J.A. Vander Velde, C. Van Apeldoorn, G.W. Van Dam, P. Van Der Heijden, M. Van Doninck, W.K. Van Eldik, J. Vaz, P. Vegni, G. Ventura, L. Venus, W. Verbeure, F. Verlato, M. Vertogradov, L.S. Vilanova, D. Vincent, P. Vitale, L. Vlasov, E. Vodopyanov, A.S. Vollmer, M. Voutilainen, M. Vrba, V. Wahlen, H. Walck, C. Waldner, F. Wehr, A. Weierstall, M. Weilhammer, P. Wetherell, A.M. Wickens, J.H. Wielers, M. Wilkinson, G.R. Williams, W.S.C. Winter, M. Witek, M. Wormser, G. Woschnagg, K. Zaitsev, A. Zalewska, A. Zalewski, P. Zavrtanik, D. Zevgolatakos, E. Zimin, N.I. Zito, M. Zontar, D. Zuberi, R. Zumerle, G. Zuniga, J.
Publication date
1 January 1994
Publisher
Abstract
The study of the properties of inclusive production of Ds mesons and of events in which a φsymbol and a muon are present in the same jet provides two independent measurements of the probability, fsw, for a heavy quark to hadronize into a strange B or D meson. The data sample analysed corresponds to 243,000 hadronic Z0 decays. The combined value of these measurements is fsw=0.19±0.06±0.08. From the flight distance distributions of Ds and of (φsymbol-lepton) secondary vertices, with the lepton emitted at high transverse momentum relative to the jet axis, two values are obtained for the Bs0 meson lifetime. Combining these measurements with a previous result based on the study of Ds-μ events, the Bs0 meson lifetime is measured to be: 0.96±0.37 ps. © 1994 Springer-Verlag
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