Measurement of the branching fraction B(B-u(+)->J/psi pi(+)) and search for B-c(+)->J/psi pi(+)

Autor: Abe, F, Akimoto, H, Akopian, A, Albrow, Mg, Amendolia, Sr, Amidei, D, Antos, J, Anwaywiese, C, Aota, S, Apollinari, G, Asakawa, T, Ashmanskas, W, Atac, M, Azfar, F, Azzibacchetta, P, Bacchetta, N, Badgett, W, Bagdasarov, S, Bailey, Mw, Bao, J, Debarbaro, P, Barbarogaltieri, A, Barnes, Ve, Barnett, Ba, Barzi, E, Bauer, G, Baumann, T, Bedeschi, F, Behrends, S, Belforte, S, Bellettini, G, Bellinger, J, Benjamin, D, Benlloch, J, Bensinger, J, Benton, D, Beretvas, A, Berge, Jp, Berryhill, J, Bertolucci, S, Bevensee, B, Bhatti, A, Biery, K, Binkley, M, Bisello, D, Blair, Re, Blocker, C, Bodek, A, Bokhari, W, Bolognesi, V, Bolla, G, Bortoletto, D, Bondreau, J, Breccia, L, Bromberg, C, Bruner, N, Buckelygeer, E, Budd, Hs, Burkett, K, Busetto, G, Byonwagner, A, Byrum, Kl, Cammerata, J, Campagnari, C, Campbell, M, Caner, A, Carithers, W, Carlsmith, D, Castro, A, Cauz, D, Cen, Y, Cervelli, F, Chang, Ps, Chang, Pt, Chao, Hy, Chapman, J, Cheng, Mt, Chiarelli, G, Chikamatsu, T, Chiou, Cn, Christofek, L, Cihangir, S, Clark, Ag, Cobal, M, Cocca, E, Contreras, M, Conway, J, Cooper, J, Cordelli, M, Couyoumtzelis, C, Crane, D, Croninhennessy, D, Culbertson, R, Daniels, T, Dejongh, F, Delchamps, S, Dellagnello, S, Dellorso, M, Demina, R, Demortier, L, Denby, B, Deninno, M, Derwent, Pf, Devlin, T, Dittmann, Jr, Donati, S, Done, J, Dorigo, T, Dunn, A, Eddy, N, Einsweiler, K, Elias, Je, Ely, R, Engels, E, Errede, D, Errede, S, Fan, Q, Ferretti, C, Fiori, I, Flaugher, B, Foster, Gw, Franklin, M, Frautschi, M, Freeman, J, Friedman, J, Fuess, Ta, Fukui, Y, Funaki, S, Gagliardi, G, Galeotti, S, Gallinaro, M, Garciasciveres, M, Garfinkel, Af, Gay, C, Geer, S, Gerdes, Dw, Giannetti, P, Giokaris, N, Giromini, P, Giusti, G, Gladney, L, Glenzinski, D, Gold, M, Gonzalez, J, Gordon, A, Goshaw, At, Goulianos, K, Grassmann, H, Groer, L, Grossopilcher, C, Guillian, G, Guo, Rs, Haber, C, Hafen, E, Hahn, Sr, Hamilton, R, Handler, R, Hans, Rm, Hara, K, Hardman, Ad, Harral, B, Harris, Rm, Hauger, Sa, Hauser, J, Hawk, C, Hayashi, E, Heinrich, J, Hoffman, Kd, Hohlmann, M, Holck, C, Hollebeek, R, Holloway, L, Holscher, A, Hong, S, Houk, G, Hu, P, Huffman, Bt, Hughes, R, Huston, J, Huth, J, Hylen, J, Ikeda, H, Incagli, M, Incandela, J, Introzzi, G, Iwai, J, Iwata, Y, Jensen, H, Joshi, H, Kadel, Rw, Kajfasz, E, Kambara, H, Kamon, T, Kaneko, T, Karr, K, Kasha, H, Kato, Y, Keaffaber, Ta, Keeble, L, Kelley, K, Kennedy, Rd, Kephart, R, Kesten, P, Kestenbaum, D, Keup, Rm, Keutelian, H, Keyvan, F, Kharadia, B, Kim, Bj, Kim, Dh, Kim, Hs, Kim, Sb, Kim, Sh, Kim, Yk, Kirsch, L, Koehn, P, Kondo, K, Konigsberg, J, Kopp, S, Kordas, K, Korytov, A, Koska, W, Kovacs, E, Kowald, W, Krasberg, M, Kroll, J, Kruse, M, Kuwabara, T, Kuhlmann, Se, Kuns, E, Laasanen, At, Labanca, N, Lammel, S, Lamoureux, Ji, Lecompte, T, Leone, S, Lewis, Jd, Limon, P, Lindgren, M, Liss, Tm, Lockyer, N, Long, O, Loomis, C, Loreti, M, Lu, J, Lucchesi, D, Lukens, P, Lusin, S, Lys, J, Maeshima, K, Maghakian, A, Maksimovic, P, Mangano, M, Mansour, J, Mariotti, M, Marriner, Jp, Martin, A, Matthews, Jaj, Mattingly, R, Mcintyre, P, Melese, P, Menzione, A, Meschi, E, Metzler, S, Miao, C, Miao, T, Michail, G, Miller, R, Minato, H, Miscetti, S, Mishina, M, Mitsushio, H, Miyamoto, T, Miyashita, S, Moggi, N, Morita, Y, Mueller, J, Mukherjee, A, Muller, T, Murat, P, Nakada, H, Nakano, I, Nelson, C, Neuberger, D, Newmanholmes, C, Ninomiya, M, Nodulman, L, Oh, Sh, Ohl, Ke, Ohmoto, T, Ohsugi, T, Oishi, R, Okabe, M, Okusawa, T, Oliveira, R, Olsen, J, Pagliarone, C, Paoletti, R, Papadimitriou, V, Pappas, Sp, Parashar, N, Park, S, Parri, A, Patrick, J, Pauletta, G, Paulini, M, Perazzo, A, Pescara, L, Peters, Md, Phillips, Tj, Piacentino, Giovanni Maria, Pillai, M, Pitts, Kt, Plunkett, R, Pondrom, L, Proudfoot, J, Ptohos, F, Punzi, G, Ragan, K, Reher, D, Ribon, A, Rimondi, F, Ristori, L, Robertson, Wj, Rodrigo, T, Rolli, S, Romano, J, Rosenson, L, Roser, R, Sakumoto, Wk, Saltzberg, D, Sansoni, A, Santi, L, Sato, H, Schlabach, P, Schmidt, Ee, Schmidt, Mp, Scribano, A, Segler, S, Seidel, S, Seiya, Y, Sganos, G, Shapiro, Md, Shaw, Nm, Shen, Q, Shepard, F, Shimojima, M, Shochet, M, Siegrist, J, Sill, A, Sinervo, P, Singh, P, Skarha, J, Sliwa, K, Snider, D, Song, T, Spalding, J, Speer, T, Sphicas, P, Spinella, F, Spiropulu, M, Speigel, L, Stanco, L, Steele, J, Stefanini, A, Strahl, K, Strait, J, Strohmer, R, Stuart, D, Sullivan, G, Soumarokov, A, Sumorok, K, Suzuki, J, Takada, T, Takahashi, T, Takano, T, Takikawa, K, Tamura, N, Tartarelli, F, Taylor, W, Teng, Pk, Teramoto, Y, Tether, S, Theriot, D, Thomas, Tl, Thun, R, Timko, M, Tipton, P, Titov, A, Tkaczyk, S, Toback, D, Tollefson, K, Tollestrup, A, Detroconiz, Jf, Truitt, S, Tseng, J, Turini, N, Uchida, T, Uemura, N, Ukegawa, F, Unal, G, Valls, J, Vandenbrink, Sc, Vejcik, S, Velev, G, Vidal, R, Vondracek, M, Vucinic, D, Wagner, Rg, Wagner, Rl, Wahl, J, Wallace, N, Wang, C, Wang, Ch, Wang, J, Wang, Mj, Wang, Qf, Warburton, A, Watts, T, Webb, R, Wei, C, Wendt, C, Wenzel, H, Wester, Wc, Wicklund, Ab, Wicklund, E, Wilkinson, R, Williams, Hh, Wilson, P, Winer, Bl, Winn, D, Wolinski, D, Wolinski, J, Worm, S, Wu, X, Wyss, J, Yagil, A, Yao, W, Yasuoka, K, Ye, Y, Yeh, Gp, Yeh, P, Yin, M, Yoh, J, Yosef, C, Yoshida, T, Yovanovitch, D, Yu, I, Yu, L, Yun, Jc, Zanetti, A, Zetti, F, Zhang, L, Zhang, W, Zucchelli, S.
Rok vydání: 1996
Předmět:
Zdroj: PHYSICAL REVIEW LETTERS. 77(26)
ISSN: 1079-7114
0031-9007
Popis: We report on a measurement of the branching fraction of the Cabibbo-suppressed decay Bu +→J/ψπ+ , where J/ψ→μ+μ-. The data were collected by the Collider Detector at Fermilab during 1992-1995 and correspond to an integrated luminosity of 110 pb-1 in p̄p collisions at √s = 1.8 TeV. A signal of 289 +10 events is observed and we determine the ratio of branching fractions B(Bu +→J/ψπ+)/B(Bu +→J/ψK+) to be [5.0-1.7 +1.9(stat) ± 0.1(syst)]%. Using the world average value for B(Bu +→J/ψK+), we calculate the branching fraction B(Bu +→J/ψπ+) to be (5.0-1.9 +2.1) × 10-5. We also search for the decay Bc +→J/ψπ+ and report a 95% confidence level limit on σ(Bc +)B(Bc +→ J/ψπ+)/σ(Bu +)B(Bu +→J/ψK+) as a function of the Bc + lifetime.
Databáze: OpenAIRE