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Article
Report number CERN-PPE-96-102 ; CERN-OPEN-99-366
Title Improved measurement of the $B^0_d$--$\overline{B}^0_d$ Oscillation frequency
Author(s)

Buskulic, Damir ; De Bonis, I ; Décamp, D ; Ghez, P ; Goy, C ; Lees, J P ; Lucotte, A ; Minard, M N ; Nief, J Y ; Odier, P ; Pietrzyk, B ; Casado, M P ; Chmeissani, M ; Crespo, J M ; Delfino, M C ; Efthymiopoulos, I ; Fernández, E ; Fernández-Bosman, M ; Garrido, L ; Juste, A ; Martínez, M ; Orteu, S ; Padilla, C ; Park, I C ; Pascual, A ; Perlas, J A ; Riu, I ; Sánchez, F ; Teubert, F ; Colaleo, A ; Creanza, D ; De Palma, M ; Gelao, G ; Girone, M ; Iaselli, Giuseppe ; Maggi, G ; Maggi, M ; Marinelli, N ; Nuzzo, S ; Ranieri, A ; Raso, G ; Ruggieri, F ; Selvaggi, G ; Silvestris, L ; Tempesta, P ; Tricomi, A ; Zito, G ; Huang, X ; Lin, J ; Ouyang, Q ; Wang, T ; Xie, Y ; Xu, R ; Xue, S ; Zhang, J ; Zhang, L ; Zhao, W ; Alemany, R ; Bazarko, A O ; Bonvicini, G ; Bright-Thomas, P G ; Cattaneo, M ; Comas, P ; Coyle, P ; Drevermann, H ; Forty, Roger W ; Frank, M ; Hagelberg, R ; Harvey, J ; Janot, P ; Jost, B ; Kneringer, E ; Knobloch, J ; Lehraus, Ivan ; Lutters, G ; Martin, E B ; Mato, P ; Minten, Adolf G ; Miquel, R ; Mir, L M ; Moneta, L ; Oest, T ; Pacheco, A ; Pusztaszeri, J F ; Ranjard, F ; Rensing, P E ; Rizzo, G ; Rolandi, Luigi ; Schlatter, W D ; Schmelling, M ; Schmitt, M ; Schneider, O ; Tejessy, W ; Tomalin, I R ; Venturi, A ; Wachsmuth, H W ; Wagner, A ; Ajaltouni, Ziad J ; Barrès, A ; Boyer, C ; Falvard, A ; Gay, P ; Guicheney, C ; Henrard, P ; Jousset, J ; Michel, B ; Monteil, S ; Montret, J C ; Pallin, D ; Perret, P ; Podlyski, F ; Proriol, J ; Rosnet, P ; Rossignol, J M ; Fearnley, Tom ; Hansen, J B ; Hansen, J D ; Hansen, J R ; Hansen, P H ; Nilsson, B S ; Rensch, B ; Wäänänen, A ; Kyriakis, A ; Markou, C ; Simopoulou, Errietta ; Siotis, I ; Vayaki, Anna ; Zachariadou, K ; Blondel, A ; Bonneaud, G R ; Brient, J C ; Bourdon, P ; Rougé, A ; Rumpf, M ; Valassi, Andrea ; Verderi, M ; Videau, H L ; Candlin, D J ; Parsons, M I ; Focardi, E ; Parrini, G ; Corden, M ; Georgiopoulos, C H ; Jaffe, D E ; Antonelli, A ; Bencivenni, G ; Bologna, G ; Bossi, F ; Campana, P ; Capon, G ; Casper, David William ; Chiarella, V ; Felici, G ; Laurelli, P ; Mannocchi, G ; Murtas, F ; Murtas, G P ; Passalacqua, L ; Pepé-Altarelli, M ; Curtis, L ; Dorris, S J ; Halley, A W ; Knowles, I G ; Lynch, J G ; O'Shea, V ; Raine, C ; Reeves, P ; Scarr, J M ; Smith, K ; Teixeira-Dias, P ; Thompson, A S ; Thomson, F ; Thorn, S ; Turnbull, R M ; Becker, U ; Geweniger, C ; Graefe, G ; Hanke, P ; Hansper, G ; Hepp, V ; Kluge, E E ; Putzer, A ; Schmidt, M ; Sommer, J ; Stenzel, H ; Tittel, K ; Werner, S ; Wunsch, M ; Abbaneo, D ; Beuselinck, R ; Binnie, David M ; Cameron, W ; Dornan, Peter J ; Moutoussi, A ; Nash, J ; Sedgbeer, J K ; Stacey, A M ; Williams, M D ; Dissertori, G ; Girtler, P ; Kuhn, D ; Rudolph, G ; Betteridge, A P ; Bowdery, C K ; Colrain, P ; Crawford, G ; Finch, A J ; Foster, F ; Hughes, G ; Sloan, Terence ; Williams, M I ; Galla, A ; Giehl, I ; Greene, A M ; Hoffmann, C ; Jakobs, K ; Kleinknecht, K ; Quast, G ; Renk, B ; Rohne, E ; Sander, H G ; Van Gemmeren, P ; Zeitnitz, C ; Aubert, Jean-Jacques ; Bencheikh, A M ; Benchouk, C ; Bonissent, A ; Bujosa, G ; Calvet, D ; Carr, J ; Diaconu, C A ; Etienne, F ; Konstantinidis, N P ; Payre, P ; Rousseau, D ; Talby, M ; Sadouki, A ; Thulasidas, M ; Trabelsi, K ; Aleppo, M ; Ragusa, F ; Bauer, C ; Berlich, R ; Blum, Walter ; Büscher, V ; Dietl, H ; Dydak, Friedrich ; Ganis, G ; Gotzhein, C ; Kroha, H ; Lütjens, G ; Lutz, Gerhard ; Männer, W ; Moser, H G ; Richter, R H ; Rosado-Schlosser, A ; Schael, S ; Settles, Ronald ; Seywerd, H C J ; Saint-Denis, R ; Wiedenmann, W ; Wolf, G ; Boucrot, J ; Callot, O ; Choi, Y ; Cordier, A ; Davier, M ; Duflot, L ; Grivaz, J F ; Heusse, P ; Höcker, A ; Jacholkowska, A ; Jacquet, M ; Kim, D W ; Le Diberder, F R ; Lefrançois, J ; Lutz, A M ; Nikolic, I A ; Park, H J ; Schune, M H ; Simion, S ; Veillet, J J ; Videau, I ; Zerwas, D ; Azzurri, P ; Bagliesi, G ; Batignani, G ; Bettarini, S ; Bozzi, C ; Calderini, G ; Carpinelli, M ; Ciocci, M A ; Ciulli, V ; Dell'Orso, R ; Fantechi, R ; Ferrante, I ; Foà, L ; Forti, F ; Giassi, A ; Giorgi, M A ; Gregorio, A ; Ligabue, F ; Lusiani, A ; Marrocchesi, P S ; Messineo, A ; Palla, Fabrizio ; Sanguinetti, G ; Sciabà, A ; Spagnolo, P ; Steinberger, Jack ; Tenchini, Roberto ; Tonelli, G ; Vannini, C ; Verdini, P G ; Walsh, J ; Blair, G A ; Bryant, L M ; Cerutti, F ; Chambers, J T ; Gao, Y ; Green, M G ; Medcalf, T ; Perrodo, P ; Strong, J A ; Von Wimmersperg-Töller, J H ; Botterill, David R ; Clifft, R W ; Edgecock, T R ; Haywood, S ; Maley, P ; Norton, P R ; Thompson, J C ; Wright, A E ; Bloch-Devaux, B ; Colas, P ; Emery, S ; Kozanecki, Witold ; Lançon, E ; Lemaire, M C ; Locci, E ; Marx, B ; Pérez, P ; Rander, J ; Renardy, J F ; Roussarie, A ; Schuller, J P ; Schwindling, J ; Trabelsi, A ; Vallage, B ; Black, S N ; Dann, J H ; Johnson, R P ; Kim, H Y ; Litke, A M ; McNeil, M A ; Taylor, G ; Booth, C N ; Boswell, R ; Brew, C A J ; Cartwright, S L ; Combley, F ; Köksal, A ; Lehto, M H ; Newton, W M ; Reeve, J ; Thompson, L F ; Böhrer, A ; Brandt, S ; Cowan, G D ; Grupen, Claus ; Minguet-Rodríguez, J A ; Rivera, F ; Saraiva, P ; Smolik, L ; Stephan, F ; Apollonio, M ; Bosisio, L ; Della Marina, R ; Giannini, G ; Gobbo, B ; Musolino, G ; Rothberg, J E ; Wasserbaech, S R ; Armstrong, S R ; Elmer, P ; Feng, Z ; Ferguson, D P S ; Gao, Y S ; González, S ; Grahl, J ; Greening, T C ; Hayes, O J ; Hu, H ; McNamara, P A ; Nachtman, J M ; Orejudos, W ; Pan, Y B ; Saadi, Y ; Scott, I J ; Walsh, A M ; Wu, X ; Yamartino, J M ; Zheng, M ; Zobernig, G

Affiliation (CERN)
Publication 1997
Imprint 2 Jul 1996
Number of pages 18
Series (ALEPH Papers)
In: Z. Phys. C 75 (1997) 397-407
In: 28th International Conference on High-energy Physics, Warsaw, Poland, 25 - 31 Jul 1996, pp.PA05-055
In: 28th International Conference on High-energy Physics, Warsaw, Poland, 25 - 31 Jul 1996, pp.e-proc. only
DOI 10.1007/s002880050483
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LEP ; ALEPH
Abstract The time dependence of $B^0_d--\bar{B}^0_d$ oscillations is measured by the ALEPH experiment at LEP, using three techniques, two of which are updates of previous measurements. In all cases the charge of the decaying $b$ quark and its decay time are measured in one hemisphere of the event; the quark charge at production is tagged mainly using the opposite hemisphere. The first method uses the charge correlation between a $D^{*-}$ and a lepton in the opposite hemisphere; if no lepton is present, the produced quark charge is determined from the hemisphere charges. In the second method, the decay time is measured using a lepton in one hemisphere and the initial state is inferred from the opposite-hemisphere jet charge. The third method uses a lepton in each hemisphere. The data used were collected from 1991 to 1994. The combined result is $\Delta m_d = 0.436\pm 0.033\, {\rm ps}^{-1}$

Corresponding record in: Inspire


 ჩანაწერი შექმნილია 1996-08-22, ბოლოს შესწორებულია 2018-09-24


სრული ტექსტი:
open-99-366 - სრული ტექსტის ჩამოტვირთვაPDF
ppe-96-102 - სრული ტექსტის ჩამოტვირთვაPDF
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