Search for B-s(0)-(B-s(0))over-bar oscillations in DELPHI using high-p(t) leptons

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Abdallah, J (author)

Search for B-s(0)-(B-s(0))over-bar oscillations in DELPHI using high-p(t) leptons

Article/chapterEnglish2004

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Springer Science and Business Media LLC,2004

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LIBRIS-ID:oai:lup.lub.lu.se:93840bb4-d6b5-401e-94f8-8d14af6f88c7
https://lup.lub.lu.se/record/276260URI
https://doi.org/10.1140/epjc/s2004-01827-0DOI

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Language:English
Summary in:English

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Oscillations in the B-s(0)- <(B-s(0))over bar> system were studied in events selected from about 4.3 million hadronic Z(0) decays registered by DELPHI between 1992 and 2000. This paper presents updates of two published analyses ([11, 12]). The first analysis, which utilizes leptons emitted with large momentum transverse to a jet, was improved by means of a better algorithm for the vertex reconstuction and a new algorithm for flavour-tagging at production time. The second analysis, which utilizes D-s-lepton events, was improved by optimizing the treatment of proper time resolution. No signal of B-s(0) oscillations was observed and limits on the mass difference between the physical B-s(0) states were obtained to be: Deltam(s)>8.0 ps-1 at the 95% C.L. with a sensitivity of Deltam(s)= 9.1 ps(-1) in the high p(t) lepton analysis and Deltam(s)>4.9 ps(-1) at the 95% C.L. with a sensitivity of Deltam(s)=8.6 ps(-1) in the D-s-lepton analysis. Previously published results on these analyses are superseded. The combination of these results with those obtained in other independent analyses previously performed in DELPHI (D-s-hadron, exclusive B-s(0), inclusive vertex) gives: Deltam(s)>8.5 ps(-1) at the 95% C.L. with a sensitivity of Deltam(s)=12.0 ps(-1).

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NATURVETENSKAP Fysik Subatomär fysik hsv//swe
NATURAL SCIENCES Physical Sciences Subatomic Physics hsv//eng

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Abreu, P (author)
Adam, W (author)
Adzic, P (author)
Albrecht, T (author)
Alderweireld, T (author)
Alemany-Fernandez, R (author)
Allmendinger, T (author)
Allport, P (author)
Amaldi, U (author)
Amapane, N (author)
Amato, S (author)
Anashkin, E (author)
Andreazza, A (author)
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Anjos, N (author)
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Arnoud, Y (author)
Ask, StefanLund University,Lunds universitet,Partikel- och kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Particle and nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)quar-sas (author)
Asman, B (author)
Augustin, E (author)
Augustinus, A (author)
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By the author/editor: Abdallah, J; Abreu, P; Adam, W; Adzic, P; Albrecht, T; Alderweireld, T; show more...; Alemany-Fernande ...; Allmendinger, T; Allport, P; Amaldi, U; Amapane, N; Amato, S; Anashkin, E; Andreazza, A; Andringa, S; Anjos, N; Antilogus, P; Apel, WD; Arnoud, Y; Ask, Stefan; Asman, B; Augustin, E; Augustinus, A; Baillon, P; Ballestrero, A; Bambade, P; Barbier, R; Bardin, D; Barker, G; Baroncelli, A; Battaglia, M; Baubillier, M; Becks, KH; Begalli, M; Behrmann, A; Ben-Haim, E; Benekos, N; Benvenuti, A; Berat, C; Berggren, M; Berntzon, L; Bertrand, D; Besancon, M; Besson, N; Bloch, D; Blom, M; Bluj, M; Bonesini, M; Boonekamp, M; Booth, L; Borisov, G; Botner, O; Bouquet, B; Bowcock, V; Boyko, I; Bracko, M; Brenner, R; Brodet, E; Bruckman, P; Brunet, M; Bugge, L; Buschmann, P; Calvi, M; Camporesi, T; Canale, V; Carena, F; Castro, N; Cavallo, F; Chapkin, M; Charpentier, P; Checchia, P; Chierici, R; Chliapnikov, P; Chudoba, J; Chung, U; Cieslik, K; Collins, P; Contri, R; Cosme, G; Cossutti, F; Costa, J; Crennell, D; Cuevas, J; D'Hondt, J; Dalmau, J; da Silva, T; Da Silva, W; Della Ricca, G; De Angelis, A; De Boer, W; De Clercq, C; De Lotto, B; De Maria, N; De Min, A; de Paula, L; Di Ciaccio, L; Di Simone, A; Doroba, K; Drees, J; Dris, M; Eigen, G; Ekelof, T; Ellert, M; Elsing, M; Santo, CE; Fanourakis, G; Fassouliotis, D; Feindt, M; Fernandez, J; Ferrer, A; Ferro, F; Flagmeyer, U; Foeth, H; Fokitis, E; Fulda-Quenzer, F; Fuster, J; Gandelman, M; Garcia, C; Gavillet, P; Gazis, E; Gokieli, R; Golob, B; Gomez-Ceballos, ...; Goncalves, P; Graziani, E; Grosdidier, G; Grzelak, K; Guy, J; Haag, C; Hallgren, A; Hamacher, K; Hamilton, K; Haug, S; Hauler, F; Hedberg, Vincent; Hennecke, M; Herr, H; Hoffman, J; Holmgren, SO; Holt, J; Houlden, A; Hultqvist, K; Jackson, N; Jarlskog, Göran; Jarry, P; Jeans, D; Johansson, K; Johansson, D; Jonsson, P; Joram, C; Jungermann, L; Kapusta, F; Katsanevas, S; Katsoufis, E; Kernel, G; Kersevan, P; Kerzel, U; Kiiskinen, A; King, T; Kjaer, J; Kluit, P; Kokkinias, P; Kourkoumelis, C; Kouznetsov, O; Krumstein, Z; Kucharczyk, M; Lamsa, J; Leder, G; Ledroit, F; Leinonen, L; Leitner, R; Lemonne, J; Lepeltier, V; Lesiak, T; Liebig, W; Liko, D; Lipniacka, A; Lopes, H; Lopez, M; Loukas, D; Lutz, P; Lyons, L; MacNaughton, J; Malek, A; Maltezos, S; Mandl, F; Marco, J; Marco, R; Marechal, B; Margoni, M; Marin, JC; Mariotti, C; Markou, A; Martinez-Rivero, ...; Masik, J; Mastroyiannopoul ...; Matorras, F; Matteuzzi, C; Mazzucato, F; Mazzucato, M; Mc Nulty, R; Meroni, C; Migliore, E; Mitaroff, W; Mjörnmark, Ulf; Moa, T; Moch, M; Moenig, K; Monge, R; Montenegro, J; Moraes, D; Moreno, S; Morettini, P; Mueller, U; Muenich, K; Mulders, M; Mundim, L; Murray, W; Muryn, B; Myatt, G; Myklebust, T; Nassiakou, M; Navarria, F; Nawrocki, K; Nicolaidou, R; Nikolenko, M; Oblakowska-Mucha ...; Obraztsov, V; Olshevski, A; Onofre, A; Orava, R; Osterberg, K; Ouraou, A; Oyanguren, A; Paganoni, M; Paiano, S; Palacios, P; Palka, H; Papadopoulou, D; Pape, L; Parkes, C; Parodi, F; Parzefall, U; Passeri, A; Passon, O; Peralta, L; Perepelitsa, V; Perrotta, A; Petrolini, A; Piedra, J; Pieri, L; Pierre, F; Pimenta, M; Piotto, E; Podobnik, T; Poireau, V; Pol, E; Polok, G; Poropat, P; Pozdniakov, V; Pukhaeva, N; Pullia, A; Rames, J; Ramler, L; Read, A; Rebecchi, P; Rehn, J; Reid, D; Reinhardt, R; Renton, P; Richard, F; Ridky, J; Rivero, M; Rodriguez, D; Romero, A; Ronchese, P; Roudeau, P; Rovelli, T; Ruhlmann-Kleider ...; Ryabtchikov, D; Sadovsky, A; Salmi, L; Salt, J; Savoy-Navarro, A; Schwickerath, U; Segar, A; Sekulin, R; Siebel, M; Sisakian, A; Smadja, G; Smirnova, Oxana; Sokolov, A; Sopczak, A; Sosnowski, R; Spassov, T; Stanitzki, M; Stocchi, A; Strauss, J; Stugu, B; Szczekowski, M; Szeptycka, M; Szumlak, T; Tabarelli, T; Taffard, C; Tegenfeldt, F; Timmermans, J; Tkatchev, L; Tobin, M; Todorovova, S; Tome, B; Tonazzo, A; Tortosa, P; Travnicek, P; Treille, D; Tristram, G; Trochimczuk, M; Troncon, C; Turluer, ML; Tyapkin, A; Tyapkin, P; Tzamarias, S; Uvarov, V; Valenti, G; Van Dam, P; Van Eldik, J; Van Lysebetten, ...; van Remortel, N; Van Vulpen, I; Vegni, G; Veloso, F; Venus, W; Verdier, P; Verzi, V; Vilanova, D; Vitale, L; Vrba, V; Wahlen, H; Washbrook, J; Weiser, C; Wicke, D; Wickens, J; Wilkinson, G; Winter, M; Witek, M; Yushchenko, O; Zalewska, A; Zalewski, P; Zavrtanik, D; Zhuravlov, V; Zimin, I; Zintchenko, A; Zupan, M; show less...

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