From a data sample of 450 000 hadronic events recorded with the ALEPH detector at LEP, 92±10 events are observed containing a J/ψ meson decaying to μ+μ- or e+e-. From these data the measured inclusive branching fraction for a b flavoured hadron to decay to a J/ψ is BR(b→ J/ψX) = (1.21±0.13 (stat.)±0.08 (syst.))%, and the average b hadron lifetime in the events tagged with a J/ψ is τb = 1.35+0.19 -0.17±0.05 ps. Five events are observed consistent with the exclusive decay B± → J/ψK± and from these events the exclusive branching fraction is measured to be BR(B± → J/ψK±) = (0.22±0.10±0.02)%. Upper limits for other exclusive branching ratios are given.

Buskulic, D., Decamp, D., Goy, C., Lees, J., Minard, M., Mours, B., et al. (1992). Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ. PHYSICS LETTERS. SECTION B, 295(3-4), 396-408 [10.1016/0370-2693(92)91581-S].

Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ

CARPINELLI, Massimo;
1992

Abstract

From a data sample of 450 000 hadronic events recorded with the ALEPH detector at LEP, 92±10 events are observed containing a J/ψ meson decaying to μ+μ- or e+e-. From these data the measured inclusive branching fraction for a b flavoured hadron to decay to a J/ψ is BR(b→ J/ψX) = (1.21±0.13 (stat.)±0.08 (syst.))%, and the average b hadron lifetime in the events tagged with a J/ψ is τb = 1.35+0.19 -0.17±0.05 ps. Five events are observed consistent with the exclusive decay B± → J/ψK± and from these events the exclusive branching fraction is measured to be BR(B± → J/ψK±) = (0.22±0.10±0.02)%. Upper limits for other exclusive branching ratios are given.
Articolo in rivista - Articolo scientifico
ANNIHILATION; BOSON; LEP;
English
396
408
13
Buskulic, D., Decamp, D., Goy, C., Lees, J., Minard, M., Mours, B., et al. (1992). Measurements of mean lifetime and branching fractions of b hadrons decaying to J/ψ. PHYSICS LETTERS. SECTION B, 295(3-4), 396-408 [10.1016/0370-2693(92)91581-S].
Buskulic, D; Decamp, D; Goy, C; Lees, J; Minard, M; Mours, B; Alemany, R; Ariztizabal, F; Comas, P; Crespo, J; Delfino, M; Fernandez, E; Gaitan, V; Garrido, L; Pacheco, A; Pascual, A; Creanza, D; Depalma, M; Farilla, A; Iaselli, G; Maggi, G; Maggi, M; Natali, S; Nuzzo, S; Quattromini, M; Ranieri, A; Raso, G; Romano, F; Ruggieri, F; Selvaggi, G; Silvestris, L; Tempesta, P; Zito, G; Hu, H; Huang, D; Huang, X; Lin, J; Lou, J; Qiao, C; Wang, T; Xie, Y; Xu, D; Xu, R; Zhang, J; Zhao, W; Atwood, W; Bauerdick, L; Blucher, E; Bonvicini, G; Bossi, F; Boudreau, J; Burnett, T; Drevermann, H; Forty, R; Hagelberg, R; Harvey, J; Haywood, S; Hilgart, J; Jacobsen, R; Jost, B; Knobloch, J; Lancon, E; Lehraus, I; Lohse, T; Lusiani, A; Martinez, M; Mato, P; Mattison, T; Meinhard, H; Menary, S; Meyer, T; Minten, A; Miquel, R; Moser, H; Palazzi, P; Perlas, J; Pusztaszeri, J; Ranjard, F; Redlinger, G; Rolandi, L; Roth, A; Rothberg, J; Ruan, T; Saich, M; Schlatter, D; Schmelling, M; Sefkow, F; Tejessy, W; Wachsmuth, H; Wiedenmann, W; Wildish, T; Witzeling, W; Wotschack, J; Ajaltouni, Z; Badaud, F; Bardadinotwinowska, M; Bencheikh, A; Elfellous, R; Falvard, A; Gay, P; Guicheney, C; Henrard, P; Jousset, J; Michel, B; Montret, J; Pallin, D; Perret, P; Pietrzyk, B; Proriol, J; Prulhiere, F; Stimpfl, G; Fearnley, T; Hansen, J; Hansen, J; Hansen, P; Mollerud, R; Nilsson, B; Efthymiopoulos, I; Kyriakis, A; Simopoulou, E; Vayaki, A; Zachariadou, K; Badier, J; Blondel, A; Bonneaud, G; Brient, J; Fouque, G; Orteu, S; Rosowsky, A; Rouge, A; Rumpf, M; Tanaka, R; Verderi, M; Videau, H; Candlin, D; Parsons, M; Veitch, E; Moneta, L; Parrini, G; Corden, M; Georgiopoulos, C; Ikeda, M; Lannutti, J; Levinthal, D; Mermikides, M; Sawyer, L; Wasserbaech, S; Antonelli, A; Baldini, R; Bencivenni, G; Bologna, G; Campana, P; Capon, G; Cerutti, F; Chiarella, V; Dettorrepiazzoli, B; Felici, G; Laurelli, P; Mannocchi, G; Murtas, F; Murtas, G; Passalacqua, L; Pepealtarelli, M; Picchi, P; Altoon, B; Boyle, O; Colrain, P; Tenhave, I; Lynch, J; Maitland, W; Morton, W; Raine, C; Scarr, J; Smith, K; Thompson, A; Turnbull, R; Brandl, B; Braun, O; Geiges, R; Geweniger, C; Hanke, P; Hepp, V; Kluge, E; Maumary, Y; Putzer, A; Rensch, B; Stahl, A; Tittel, K; Wunsch, M; Belk, A; Beuselinck, R; Binnie, D; Cameron, W; Cattaneo, M; Colling, D; Dornan, P; Dugeay, S; Greene, A; Hassard, J; Lieske, N; Nash, J; Patton, S; Payne, D; Phillips, M; Sedgbeer, J; Tomalin, I; Wright, A; Kneringer, E; Kuhn, D; Rudolph, G; Bowdery, C; Brodbeck, T; Finch, A; Foster, F; Hughes, G; Jackson, D; Keemer, N; Nuttall, M; Patel, A; Sloan, T; Snow, S; Whelan, E; Kleinknecht, K; Raab, J; Renk, B; Sander, H; Schmidt, H; Steeg, F; Walther, S; Wolf, B; Aubert, J; Benchouk, C; Bernard, V; Bonissent, A; Carr, J; Coyle, P; Drinkard, J; Etienne, F; Papalexiou, S; Payre, P; Qian, Z; Rousseau, D; Schwemling, P; Talby, M; Adlung, S; Bauer, C; Blum, W; Brown, D; Cowan, G; Dehning, B; Dietl, H; Dydak, F; Fernandezbosman, M; Frank, M; Halley, A; Lauber, J; Lutjens, G; Lutz, G; Manner, W; Richter, R; Rotscheidt, H; Schroder, J; Schwarz, A; Settles, R; Seywerd, H; Stierlin, U; Stiegler, U; Stdenis, R; Takashima, M; Thomas, J; Wolf, G; Bertin, V; Boucrot, J; Callot, O; Chen, X; Cordier, A; Davier, M; Grivaz, J; Heusse, P; Janot, P; Kim, D; Lediberder, F; Lefrancois, J; Lutz, A; Schune, M; Veillet, J; Videau, I; Zhang, Z; Zomer, F; Abbaneo, D; Amendolia, S; Bagliesi, G; Batignani, G; Bosisio, L; Bottigli, U; Bradaschia, C; Carpinelli, M; Ciocci, M; Dellorso, R; Ferrante, I; Fidecaro, F; Foa, L; Focardi, E; Forti, F; Giassi, A; Giorgi, M; Ligabue, F; Mannelli, E; Marrocchesi, P; Messineo, A; Palla, F; Rizzo, G; Sanguinetti, G; Spagnolo, P; Steinberger, J; Tenchini, R; Tonelli, G; Triggiani, G; Vannini, C; Venturi, A; Verdini, P; Walsh, J; Carter, J; Green, M; March, P; Mir, L; Medcalf, T; Quazi, I; Strong, J; West, L; Botterill, D; Clifft, R; Edgecock, T; Edwards, M; Fisher, S; Jones, T; Norton, P; Salmon, D; Thompson, J; Blochdevaux, B; Colas, P; Duarte, H; Kozanecki, W; Lemaire, M; Locci, E; Loucatos, S; Monnier, E; Perez, P; Perrier, F; Rander, J; Renardy, J; Roussarie, A; Schuller, J; Schwindling, J; Mohand, D; Vallage, B; Johnson, R; Litke, A; Taylor, G; Wear, J; Ashman, J; Babbage, W; Booth, C; Buttar, C; Carney, R; Cartwright, S; Combley, F; Hatfield, F; Reeves, P; Thompson, L; Barberio, E; Bohrer, A; Brandt, S; Grupen, C; Mirabito, L; Rivera, F; Schafer, U; Ganis, G; Giannini, G; Gobbo, B; Ragusa, F; Bellantoni, L; Chen, W; Cinabro, D; Conway, J; Cowen, D; Feng, Z; Ferguson, D; Gao, Y; Grahl, J; Harton, J; Jared, R; Leclaire, B; Lishka, C; Pan, Y; Pater, J; Saadi, Y; Sharma, V; Schmitt, M; Shi, Z; Walsh, A; Weber, F; Whitney, M; Wu, S; Wu, X; Zobernig, G
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/390430
Citazioni
  • Scopus 41
  • ???jsp.display-item.citation.isi??? 39
Social impact