Determination of ${\rm |V_{ub}|}$ from the measurement of the inclusive charmless semileptonic branching ratio of b hadrons

Autor: Barate, R, Abbaneo, D, Affholderbach, K, Ajaltouni, Ziad J, Alemany, R, Aleppo, M, Antonelli, A, Antonelli, M, Armstrong, S R, Aubert, Jean-Jacques, Azzurri, P, Badaud, F, Bagliesi, G, Batignani, G, Becker, U, Benchouk, C, Bencivenni, G, Berlich, R, Bettarini, S, Betteridge, A P, Beuselinck, R, Binnie, David M, Black, S N, Blair, G A, Bloch-Devaux, B, Blondel, A, Blum, Walter, Boccali, T, Boix, G, Bologna, G, Bonissent, A, Bonneaud, G R, Booth, C N, Bossi, F, Botterill, David R, Boucrot, J, Bourdon, P, Bowdery, C K, Bozzi, C, Brandt, S, Brient, J C, Bright-Thomas, P G, Bryant, L M, Buchmüller, O L, Buck, P G, Bujosa, G, Buskulic, Damir, Böhrer, A, Büscher, V, Calderini, G, Callot, O, Cameron, W, Campana, P, Capon, G, Carpinelli, M, Carr, J, Cartwright, S L, Casado, M P, Casper, David William, Cattaneo, M, Cerutti, F, Chambers, J T, Charles, E, Chazelle, G, Chen, S, Chiarella, V, Chmeissani, M, Ciocci, M A, Ciulli, V, Clifft, R W, Colaleo, A, Colas, P, Colrain, P, Combley, F, Corden, M, Cordier, A, Cowan, G D, Coyle, P, Crawford, G, Creanza, D, Crespo, J M, Curtis, L, Dann, J H, Daskalakis, G, Davier, M, De Palma, M, Delfino, M C, Dell'Orso, R, Deschamps, O, Dhamotharan, S, Dietl, H, Dissertori, G, Dornan, Peter J, Drevermann, H, Duflot, L, Décamp, D, Edgecock, T R, Elmer, P, Emery, S, Etienne, F, Falvard, A, Fantechi, R, Felici, G, Ferdi, C, Ferguson, D P S, Fernández, E, Fernández-Bosman, M, Ferrante, I, Finch, A J, Focardi, E, Forti, F, Forty, Roger W, Foster, F, Foà, L, Frank, M, Ganis, G, Gao, Y, Garrido, L, Gay, P, Gelao, G, Georgiopoulos, C H, Geweniger, C, Ghete, V M, Ghez, P, Giannini, G, Giassi, A, Giehl, I, Giorgi, M A, Girone, M, Girtler, P, Gobbo, B, González, S, Goodsir, S M, Goy, C, Graefe, G, Graugès-Pous, E, Green, M G, Greening, T C, Gregorio, A, Grivaz, J F, Grupen, Claus, Guicheney, C, Hagelberg, R, Halley, A W, Hanke, P, Hansen, J B, Hansen, J D, Hansen, J R, Hansen, P H, Hansper, G, Harvey, J, Hayes, O J, Haywood, S, Henrard, P, Hepp, V, Heusse, P, Hoffmann, C, Hu, H, Huang, X, Hughes, G, Höcker, A, Iaselli, Giuseppe, Jacholkowska, A, Jaffe, D E, Jakobs, K, Janot, P, Jin, S, Johnson, R P, Jones, R W L, Jost, B, Jousset, J, Juste, A, Kelly, M S, Kim, D W, Kim, H Y, Kleinknecht, K, Kluge, E E, Kneringer, E, Konstantinidis, N P, Kozanecki, Witold, Kroha, H, Kuhn, D, Kyriakis, A, Lançon, E, Laurelli, P, Le Diberder, F R, Lees, J P, Lefrançois, J, Lehraus, Ivan, Lehto, M H, Lemaire, M C, Leroy, O, Ligabue, F, Lin, J, Litke, A M, Locci, E, Lucotte, A, Lusiani, A, Lutz, A M, Lynch, J G, Lütjens, G, Maggi, G, Maggi, M, Mannert, C, Mannocchi, G, Marinelli, N, Markou, C, Marrocchesi, P S, Martin, E B, Martin, F, Martínez, M, Mato, P, McNamara, P A, McNeil, M A, Medcalf, T, Merino, G, Merle, E, Messineo, A, Michel, B, Minard, M N, Minten, Adolf G, Miquel, R, Mir, L M, Moneta, L, Monteil, S, Montret, J C, Moser, H G, Motsch, F, Moutoussi, A, Murtas, F, Murtas, G P, Musolino, G, Männer, W, Nachtman, J M, Nash, J, Negus, P, Nief, J Y, Nielsen, J, Nilsson, B S, Norton, P R, Nuzzo, S, O'Shea, V, Orejudos, W, Ouyang, Q, Pacheco, A, Palla, Fabrizio, Pallin, D, Pan, Y B, Park, I C, Parrini, G, Pascual, A, Passalacqua, L, Payre, P, Pepé-Altarelli, M, Perret, P, Perrodo, P, Pietrzyk, B, Podlyski, F, Proriol, J, Putzer, A, Pérez, P, Quast, G, Ragusa, F, Raine, C, Rander, J, Ranieri, A, Ranjard, F, Raso, G, Renardy, J F, Renk, B, Rensch, B, Riu, I, Rizzo, G, Robertson, N A, Rohne, E, Rolandi, Luigi, Rosnet, P, Rothberg, J E, Rougé, A, Roussarie, A, Rousseau, D, Rudolph, G, Ruggieri, F, Rumpf, M, Saadi, Y, Sadouki, A, Sander, H G, Sanguinetti, G, Saraiva, P, Scarr, J M, Schael, S, Schlatter, W D, Schmitt, M, Schneider, O, Schuller, J P, Schune, M H, Schwindling, J, Sciabà, A, Scott, I J, Sedgbeer, J K, Selvaggi, G, Settles, Ronald, Seywerd, H C J, Sguazzoni, G, Silvestris, L, Simopoulou, Errietta, Siotis, I, Smith, K, Smolik, L, Sommer, J, Spagnolo, P, Stenzel, H, Stephan, F, Strong, J A, Sánchez, F, Talby, M, Tanaka, R, Taylor, G, Teixeira-Dias, P, Tejessy, W, Tempesta, P, Tenchini, Roberto, Teubert, F, Thompson, A S, Thompson, J C, Thompson, L F, Thomson, E, Thulasidas, M, Tittel, K, Tomalin, I R, Tonelli, G, Tournefier, E, Trabelsi, A, Trabelsi, K, Tricomi, A, Vallage, B, Van Gemmeren, P, Vannini, C, Vayaki, Anna, Veillet, J J, Venturi, A, Verderi, M, Verdini, P G, Videau, H L, Videau, I, Von Wimmersperg-Töller, J H, Wachsmuth, H W, Walsh, J, Wang, T, Wasserbaech, S R, Werner, S, Wiedenmann, W, Williams, M D, Williams, M I, Wolf, G, Wright, A E, Wu Sau Lan, Wu, X, Wunsch, M, Wäänänen, A, Xie, Y, Xu, R, Xue, S, Zachariadou, K, Zeitnitz, C, Zerwas, D, Zhang, J, Zhang, L, Zhao, W, Zito, G, Zobernig, G
Přispěvatelé: Barate, R, Buskulic, D, Decamp, D, Ghez, P, Goy, C, Lees, J, Lucotte, A, Merle, E, Minard, M, Nief, J, Pietrzyk, B, Alemany, R, Boix, G, Casado, M, Chmeissani, M, Crespo, J, Delfino, M, Fernandez, E, Fernandez Bosman, M, Garrido, L, Grauges, E, Juste, A, Martinez, M, Merino, G, Miquel, R, Mir, L, Park, I, Pascual, A, Riu, I, Sanchez, F, Colaleo, A, Creanza, D, de Palma, M, Gelao, G, Iaselli, G, Maggi, G, Maggi, M, 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, Abbaneo, D, Becker, U, Bright Thomas, P, Casper, D, Cattaneo, M, Ciulli, V, Dissertori, G, Drevermann, H, Forty, R, Frank, M, Hagelberg, R, Hansen, J, Harvey, J, Janot, P, Jost, B, Lehraus, I, Mato, P, Minten, A, Moneta, L, Pacheco, A, Ranjard, F, Rolandi, L, Rousseau, D, Schlatter, D, Schmitt, M, Schneider, O, Tejessy, W, Teubert, F, Tomalin, I, Wachsmuth, H, Ajaltouni, Z, Badaud, F, Chazelle, G, Deschamps, O, Falvard, A, Ferdi, C, Gay, F, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, J, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Rosnet, P, Hansen, P, Nilsson, B, Rensch, B, Waananen, A, Daskalakis, G, Kyriakis, A, Markou, C, Simopoulou, E, Siotis, I, Vayaki, A, Blondel, A, Bonneaud, G, Brient, J, Bourdon, P, Rouge, A, Rumpf, M, Valassi, A, Verderi, M, Videau, H, Focardi, E, Parrini, G, Zachariadou, K, Corden, M, Georgiopoulos, C, Jaffe, D, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Cerutti, F, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G, Passalacqua, L, Pepe Altarelli, M, Curtis, L, Halley, A, Lynch, J, Negus, P, O'Shea, V, Raine, C, Scarr, J, Smith, K, Teixeira Dias, P, Thompson, A, Thomson, E, Buchmuller, O, Dhamotharan, S, Geweniger, C, Graefe, G, Hanke, P, Hansper, G, Hepp, V, Kluge, E, Putzer, A, Sommer, J, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, D, Cameron, M, Dornan, P, Girone, M, Goodsir, S, Martin, E, Marinelli, N, Moutoussi, A, Nash, J, Sedgbeer, J, Spagnolo, P, Williams, M, Ghete, V, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, C, Buck, P, Colrain, P, Crawford, G, Finch, A, Foster, F, Hughes, G, Jones, R, Robertson, N, Giehl, I, Hoffmann, C, Jakobs, K, Kleinknecht, K, Quast, G, Renk, B, Rohne, E, Sander, H, van Gemmeren, P, Zeitnitz, C, Aubert, J, Benchouk, C, Bonissent, A, Bujosa, G, Carr, J, Coyle, P, Etienne, F, Leroy, O, Motsch, F, Payre, P, Talby, M, Sadouki, A, Thulasidas, M, Trabelsi, K, Aleppo, M, Antonelli, M, Ragusa, F, Berlich, R, Blum, W, Buscher, V, Dietl, H, Ganis, G, Kroha, H, Lutjens, G, Mannert, C, Manner, W, Moser, H, Schael, S, Settles, R, Seywerd, H, Stenzel, H, Wiedenmann, W, Wolf, G, Boucrot, J, Callot, O, Chen, S, Cordier, A, Davier, M, Duflot, L, Grivaz, J, Heusse, P, Hocker, A, Jacholkowska, A, Kim, D, Le Diberder, F, Lefrancois, J, Lutz, A, Schune, M, Tournefier, E, Veillet, J, Videau, I, Zerwas, D, Azzurri, P, Bagliesi, G, Batignani, G, Bettarini, S, Boccali, T, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, M, Dell'Orso, R, Fantechi, R, Ferrante, I, Foa, L, Forti, F, Giassi, A, Giorgi, M, Gregorio, A, Ligabue, F, Lusiani, A, Marrocchesi, P, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Sciaba, A, Sguazzoni, G, Tenchini, R, Tonelli, G, Vannini, C, Venturi, A, Verdini, P, Blair, G, Bryant, L, Chambers, J, Green, M, Medcalf, T, Perrodo, P, Strong, J, von Wimmersperg Toeller, J, Botterill, D, Clifft, R, Edgecock, T, Haywood, S, Norton, P, Thompson, J, Wright, A, Bloch Devaux, B, Colas, P, Emery, S, Kozanecki, W, Lancon, E, Lemaire, M, Locci, E, Perez, P, Rander, J, Renardy, J, Roussarie, A, Schuller, J, Schwindling, J, Trabelsi, A, Vallage, B, Black, S, Dann, J, Johnson, R, Kim, H, Konstantinidis, N, Litke, A, Mcneil, M, Taylor, G, Booth, C, Cartwright, S, Combley, F, Kelly, M, Lehto, M, Thompson, L, Affholderbach, K, Bohrer, A, Brandt, S, Cowan, G, Grupen, C, Saraiva, P, Smolik, L, Stephan, F, Giannini, G, Gobbo, B, Musolino, G, Rothberg, J, Wasserbaech, S, Armstrong, S, Betteridge, A, Charles, E, Elmer, P, Ferguson, D, Gao, Y, Gonzalez, S, Greening, T, Hayes, O, Hu, H, Jin, S, Mcnamara, P, Nachtman, J, Nielsen, J, Orejudos, W, Pan, Y, Saadi, Y, Scott, I, Walsh, J, Wu, S, Wu, X, Zobernig, G
Rok vydání: 1999
Předmět:
Zdroj: Scopus-Elsevier
ISSN: 1434-6052
1434-6044
Popis: From a study of the kinematic properties of the final state produced in the semileptonic decays ${\rm b\to X\ell\nu_{\ell}}$ , the inclusive charmless semileptonic branching ratio of b hadrons is measured. With a sample of 3.6 million hadronic Z decays recorded between 1992 and 1995 with the ALEPH detector at LEP, the value ${\rm Br(b\to X_u\ell\nu_{\ell})}$ is determined to be $(1.73\pm 0.55_{{\rm stat}}\pm 0.55_{{\rm syst}})\times 10^{-3}$ , where ${\rm X_u}$ represents any charmless hadronic state and b is a mixture of b hadrons weighted by their production rates. This measurement yields the result \[ {\rm |V_{ub}|^2}= (18.68\pm 5.94_{{\rm stat}}\pm 5.94_{{\rm syst}}\pm 1.45_{HQE})\times 10^{-6}, \] where the last error comes from the conversion of the branching ratio to the CKM matrix element squared.
Databáze: OpenAIRE
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