| Autor: |
Abreu, P Adam, W Adye, T Agasi, E Ajinenko, I and Aleksan, R Alekseev, GD Alemany, R Allport, PP Almehed, S Amaldi, U Amato, S Andreazza, A Andrieux, ML and Antilogus, P Apel, WD Arnoud, Y Asman, B Augustin, JE and Augustinus, A Baillon, P Bambade, P Barao, F Barate, R Barbi, M Barbiellini, G Bardin, DY Baroncelli, A and Barring, O Barrio, JA Bartl, W Bates, MJ Battaglia, M and Baubillier, M Baudot, J Becks, KH Begalli, M and Beilliere, P Belokopytov, Y Benvenuti, AC Berggren, M and Bertrand, D Bianchi, F Bigi, M Bilenky, MS Billoir, P and Bloch, D Blume, M Blyth, S Bolognese, T Bonesini, M and Bonivento, W Booth, PSL Borisov, G Bosio, C and Bosworth, S Botner, O Boudinov, E Bouquet, B Bourdarios, C Bowcock, TJV Bozzo, M Branchini, P Brand, KD and Brenke, T Brenner, RA Bricman, C Brillault, L Brown, RCA and Bruckman, P Brunet, JM Bugge, L Buran, T and Burgsmueller, T Buschmann, P Buys, A Cabrera, S Caccia, M Calvi, M Rozas, AJC Camporesi, T Canale, V Canepa, M Cankocak, K Cao, F Carena, F Carroll, L Caso, C and Gimenez, MVC Cattai, A Cavallo, FR Cerrito, L and Chabaud, V Chapkin, M Charpentier, P Chaussard, L and Chauveau, J Checchia, P Chelkov, GA Chen, M Chierici, R and Chliapnikov, P Chochula, P Chorowicz, V Chudoba, J and Cindro, V Collins, P Contreras, JL Contri, R Cortina, E and Cosme, G Cossutti, F Crawley, HB Crennell, D and Crosetti, G Maestro, JC Czellar, S DahlJensen, E Dahm, J and Dalmagne, B Dam, M Damgaard, G Dauncey, PD and Davenport, M DaSilva, W Defoix, C Deghorain, A and DellaRicca, G Delpierre, P Demaria, N DeAngelis, A and DeBoer, W DeBrabandere, S DeClercq, C DeLaVaissiere, C and DeLotto, B DeMin, A DePaula, L DeSaintJean, C Dijkstra, H DiCiaccio, L Djama, F Dolbeau, J Donszelmann, M and Doroba, K Dracos, M Drees, J Drees, KA Dris, M and Dufour, Y Edsall, D Ehret, R Eigen, G Ekelof, T and Ekspong, G Elsing, M Engel, JP Ershaidat, N Erzen, B and Santo, ME Falk, E Fassouliotis, D Feindt, M Fenyuk, A and Ferrer, A Filippas, TA Firestone, A Fischer, PA and Foeth, H Fokitis, E Fontanelli, F Formenti, F Franek, B and Frenkiel, P Fries, DC Frodesen, AG Fruhwirth, R and FuldaQuenzer, F Fuster, J Galloni, A Gamba, D Gandelman, M Garcia, C Garcia, J Gaspar, C Gasparini, U and Gavillet, P Gazis, EN Gele, D Gerber, JP Gibbs, M and Gokieli, R Golob, B Gopal, G Gorn, L Gorski, M Gouz, Y Gracco, V Graziani, E Grosdidier, G Grzelak, K and Gumenyuk, S Gunnarsson, P Gunther, M Guy, J Hahn, F and Hahn, S Hajduk, Z Hallgren, A Hamacher, K Hao, W and Harris, FJ Hedberg, V Henriques, R Hernandez, JJ and Herquet, P Herr, H Hessing, TL Higon, E Hilke, HJ and Hill, TS Holmgren, SO Holt, PJ Holthuizen, D Hoorelbeke, S Houlden, M Hrubec, J Huet, K Hultqvist, K Jackson, JN Jacobsson, R Jalocha, P Janik, R Jarlskog, C and Jarlskog, G Jarry, P JeanMarie, B Johansson, EK Jonsson, L Jonsson, P Joram, C Juillot, P Kaiser, M Kapusta, F Karafasoulis, K Karlson, M Karvelas, E Katsanevas, S and Katsoufis, EC Keranen, R Khokhlov, Y Khomenko, BA and Khovanski, NN King, B Kjaer, NJ Klein, H Klovning, A and Kluit, P Koene, B Kokkinias, P Koratzinos, M Korcyl, K and Kourkoumelis, C Kouznetsov, O Kramer, PH Krammer, M and Kreuter, C Kronkvist, I Krumstein, Z Krupinski, W and Kubinec, P Kucewicz, W Kurvinen, K Lacasta, C Laktineh, I Lamblot, S Lamsa, JW Lanceri, L Lane, DW and Langefeld, P Last, I Laugier, JP Lauhakangas, R Leder, G and Ledroit, F Lefebure, V Legan, CK Leitner, R and Lemoigne, Y Lemonne, J Lenzen, G Lepeltier, V Lesiak, T and Liko, D Lindner, R Lipniacka, A Lippi, I Loerstad, B and Liken, JG Lopez, JM Loukas, D Lutz, P Lyons, L and Maehlum, G Maio, A Malychev, V Mandl, F Marco, J and Marco, R Marechal, B Margoni, M Marin, JC Mariotti, C and Markou, A Maron, T MartinezRivero, C MartinezVidal, F and Garcia, SMI Masik, J Matorras, F Matteuzzi, C and Matthiae, G Mazzucato, M McCubbin, M McKay, R McNulty, R and Medbo, J Merk, M Meroni, C Meyer, S Meyer, WT and Michelotto, M Migliore, E Mirabito, L Mitaroff, WA and Mjoernmark, U Moa, T Moeller, R Moenig, K Monge, MR and Morettini, P Mueller, H Mundim, LM Murray, WJ Muryn, B and Myatt, G Naraghi, F Navarria, FL Navas, S Nawrocki, K Negri, P Nemecek, S Neumann, W Neumeister, N and Nicolaidou, R Nielsen, BS Nieuwenhuizer, M Nikolaenko, V and Niss, P Nomerotski, A Normand, A Novak, M and OberschulteBeckmann, W Obraztsov, V Olshevski, AG Onofre, A and Orava, R Osterberg, K Ouraou, A Paganini, P and Paganoni, M Pages, P Palka, H Papadopoulou, TD and Papageorgiou, K Pape, L Parkes, C Parodi, F Passeri, A and Pegoraro, M Peralta, L Pemegger, H Pernicka, M and Perrotta, A Petridou, C Petrolini, A Petrovyck, M and Phillips, HT Piana, G Pierre, F Pimenta, M Pindo, M and Plaszcyzynski, S Podoborin, O Pol, ME Polok, G Poropat, P Pozdniakov, V Prest, M Privitera, P Pukhaeva, N and Pullia, A Radojicic, D Ragazzi, S Rahman, H Ratoff, PN and Read, AL Reale, M Rebecchi, P Redaelli, NG Regler, M and Reid, D Benton, PB Resvanis, LK Richard, F and Richardson, J Ridky, J Rinaudo, G Ripp, I Romero, A and Roncagliolo, I Ronchese, P Roos, L Rosenberg, EI Rosso, E Roudeau, P Rovelli, T Ruckstuhl, W RuhlmannKleider, V and Ruiz, A Rybicki, K Saarikko, H Sacquin, Y Sadovsky, A Sajot, G Salt, J Sanchez, J Sannino, M and Schimmelpfennig, M Schneider, H Schwickerath, U Schyns, MAE and Sciolla, G Scuri, F Seager, P Sedykh, Y Segar, AM and Seitz, A Sekulin, R Shellard, RC Siccama, I and Siegrist, P Simonetti, S Simonetto, F Sisakian, AN and Sitar, B Skaali, TB Smadja, G Smirnov, N Smirnova, O and Smith, GR Solovianov, O Sosnowski, R SouzaSantos, D and Spassov, T Spiriti, E Sponholz, P Squarcia, S Stanescu, C Stapnes, S Stavitski, I Stichelbaut, F Stocchi, A and Strauss, J Strub, R Stugu, B Szczekowski, M Szeptycka, M and Tabarelli, T Tavernet, JP Tchikilev, O Tilquin, A and Timmermans, J Tkatchev, LG Todorov, T Toet, DZ and Tomaradze, A Tonazzo, A Tortora, L Transtromer, G and Treille, D Trischuk, W Tristram, G Trombini, A Troncon, C Tsirou, A Turluer, ML Tyapkin, IA Tyndel, M and Tzamarias, S Ueberschaer, B Ullaland, O Uvarov, V and Valenti, G Vallazza, E VanderVelde, C VanApeldoorn, GW and VanDam, P VanDoninck, WK VanEldik, J Vassilopoulos, N and Vegni, G Ventura, L Venus, W Verbeure, F Verlato, M and Vertogradov, LS Vilanova, D Vincent, P Vitale, L Vlasov, E Vodopyanov, AS Vrba, V Wahlen, H Walck, C and Weierstall, M Weilhammer, P Weiser, C Wetherell, AM and Wicke, D Wickens, JH Wielers, M Wilkinson, GR Williams, WSC Winter, M Witek, M Woschnagg, K Yip, K and Yushchenko, O Zach, F Zaitsev, A Zalewska, A Zalewska, P and Zavrtanik, D Zevgolatakos, E Zimin, NI Zito, M and Zontar, D Zuberi, R Zucchelli, GC Zumerle, G |
| Jazyk: |
angličtina |
| Rok vydání: |
1996 |
| Popis: |
Semileptonic decays B –> D*(-)l(+)nu X were selected from a sample of 3.1 million hadronic Z decays collected by the DELPHI detector at LEP. A topological search for semileptonic B decays to resonant and non-resonant D*(-)pi(+) states was performed and the ratio of the branching fractions: Br(B –> D*(-)l(+)nu X)/Br(B –> D*(-)l(+)nu X) + Br(B-0 –> D*(-)l(+)nu) = 0.19 +/- 0.10(stat) +/- 0.06(syst) was determined. Taking into account this contribution, the differential decay width of B-0 –> D*(-)l(+)nu was measured as a function of the momentum transfer from the B to the D*(-) in two separate analyses, using exclusive and inclusive methods of D*(-) reconstruction. The distributions were fitted over the full momentum transfer range to extract the product of /V-cb/ times the normalization of the decay form factor F(q(max)(2)): F(q(max)(2))/V-cb/ = (35.4 +/- 1.9(stat) +/- 2.4(syst)) . 10(-3). The value of /V-cb/ was computed using theoretical calculations of F(q(max?2), giving: /V-cb/ = (38.9 +/- 2.0(stat) +/- 2.6(syst) +/- 1.7(theory)) . 10(-3). The total branching fraction Br(B-0 –> D*(-)l(-)nu) was determined to be: Br(B-0 –> D*(-)l(+)nu) = (5.52 +/- 0.17(stat) +/- 0.68(syst))%. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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