Measurement of the (B)over-bar-0 and B- meson Lifetimes

Autor: Buskulic, D., Decamp, D., Goy, C., Lees, J. P., Minard, M. N., Mours, B., Pietrzyk, B., Alemany, R., Ariztizabal, F., Comas, P., Crespo, J. M., Delfino, M., Fernandez, E., Fernandezbosman, M., Gaitan, V., Garrido, L., Mattison, T., Pacheco, A., Padilla, C., 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., Chai, Y., Hu, H., Huang, D., Huang, X., Lin, J., Wang, T., Xie, Y., Xu, D., Xu, R., Zhang, J., Zhang, L., Zhao, W., L. A. T., Blucher, E., Bonvicini, G., Boudreau, J., Casper, D., Drevermann, H., Forty, R. W., Ganis, G., Gay, C., Hagelberg, R., Harvey, J., Haywood, S., Hilgart, J., Jacobsen, R., Jost, B., Knobloch, J., Lehraus, I., Lohse, T., Lusiani, A., Martinez, M., Mato, P., Meinhard, H., Minten, A., Miotto, A., Miquel, R., Moser, H. G., Palazzi, P., Perlas, J. A., Pusztaszeri, J. F., Ranjard, F., Redlinger, G., Rolandi, L., 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., Elfellous, R., Falvard, A., Gay, P., Guicheney, C., Henrard, P., Jousset, J., Michel, B., Montret, J. C., Pallin, D., Perret, P., Podlyski, F., Proriol, J., Prulhiere, F., Saadi, F., Fearnley, T., Hansen, J. D., Hansen, J. R., Hansen, P. H., Mollerud, R., Nilsson, B. S., Efthymiopoulos, I., Kyriakis, A., Simopoulou, E., Vayaki, A., Zachariadou, K., Badier, J., Blondel, A., Bonneaud, G., Brient, J. C., Fouque, G., Orteu, S., Rouge, A., Rumpf, M., Tanaka, R., Verderi, M., Videau, H., Candlin, D. J., Parsons, M. I., 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., Bossi, F., Campana, P., Capon, G., Cerutti, F., Chiarella, V., Dettorrepiazzoli, B., Felici, G., Laurelli, P., Mannocchi, G., Murtas, F., Murtas, G. P., Passalacqua, L., Pepealtarelli, M., Picchi, P., Colrain, P., Tenhave, I., Lynch, J. G., Maitland, W., Morton, W. T., Raine, C., Reeves, P., Scarr, J. M., Smith, K., Smith, M. G., Thompson, A. S., Turnbull, R. M., Brandl, B., Braun, O., Geweniger, C., Hanke, P., Hepp, V., Kluge, E. E., Maumary, Y., Putzer, A., Rensch, B., Stahl, A., Tittel, K., Wunsch, M., Belk, A. T., Beuselinck, R., Binnie, D. M., Cameron, W., Cattaneo, M., Colling, D. J., Dornan, P. J., Dugeay, S., Greene, A. M., Hassard, J. F., Lieske, N. M., Nash, J., Payne, D. G., Phillips, M. J., Sedgbeer, J. K., Tomalin, I. R., Wright, A. G., Girtler, P., Kneringer, E., Kuhn, D., Rudolph, G., Bowdery, C. K., Brodbeck, T. J., Finch, A. J., Foster, F., Hughes, G., Jackson, D., Keemer, N. R., Nuttall, M., Patel, A., Sloan, T., Snow, S. W., Whelan, E. P., Kleinknecht, K., Raab, J., Renk, B., Sander, H. G., Schmidt, H., Steeg, F., Walther, S. M., Wanke, R., Wolf, B., Aubert, J. J., Bencheikh, A. M., Benchouk, C., Bonissent, A., Carr, J., Coyle, P., Drinkard, J., Etienne, F., Nicod, D., Papalexiou, S., Payre, P., Roos, L., Rousseau, D., Schwemling, P., Talby, M., Adlung, S., Assmann, R., Bauer, C., Blum, W., Brown, D., Cattaneo, P., Dehning, B., Dietl, H., Dydak, F., Frank, M., Halley, A. W., Lauber, J., Lutjens, G., Lutz, G., Manner, W., Richter, R., Rotscheidt, H., Schroder, J., Schwarz, A. S., Settles, R., Seywerd, H., Stierlin, U., Stiegler, U., Stdenis, R., Wolf, G., Boucrot, J., Callot, O., Cordier, A., Davier, M., Duflot, L., Grivaz, J. F., Heusse, P., Jaffe, D. E., Janot, P., Kim, D. W., Lediberder, F., Lefrancois, J., Lutz, A. M., Schune, M. H., Veillet, J. J., Videau, I., Zhang, Z., Abbaneo, D., Bagliesi, G., Batignani, G., Bosisio, L., Bottigli, U., Bozzi, C., Calderini, G., Carpinelli, M., Ciocci, MARIA AGNESE, Dellorso, R., Ferrante, Isidoro, Fidecaro, Francesco, Foa, L., Focardi, E., Forti, Francesco, Giassi, A., Giorgi, Marcello, Gregorio, A., Ligabue, F., Mannelli, E. B., Marrocchesi, P. S., Messineo, ALBERTO MARIA, Palla, F., Rizzo, Giuliana, Sanguinetti, G., Spagnolo, P., Steinberger, J., Tenchini, R., Tonelli, GUIDO EMILIO, Triggiani, G., Vannini, C., Venturi, A., Verdini, P. G., Walsh, J., Betteridge, A. P., Carter, J. M., Green, M. G., March, P. V., Mir, L. M., Medcalf, T., Quazi, I. S., Strong, J. A., West, L. R., Botterill, D. R., Clifft, R. W., Edgecock, T. R., Edwards, M., Fisher, S. M., Jones, T. J., Norton, P. R., Salmon, D. P., Thompson, J. C., Blochdevaux, B., Colas, P., Duarte, H., Kozanecki, W., Lancon, E., Lemaire, M. C., Locci, E., Perez, P., Perrier, F., Rander, J., Renardy, J. F., Rosowsky, A., Roussarie, A., Schuller, J. P., Schwindling, J., Mohand, D. S., Vallage, B., Johnson, R. P., Litke, A. M., Taylor, G., Wear, J., Ashman, J. G., Babbage, W., Booth, C. N., Buttar, C., Carney, R. E., Cartwright, S., Combley, F., Hatfield, F., Thompson, L. F., Barberio, E., Bohrer, A., Brandt, S., Cowan, G., Grupen, C., Lutters, G., Rivera, F., Schafer, U., Smolik, L., Dellamarina, R., Giannini, G., Gobbo, B., Ragusa, F., Bellantoni, L., Chen, W., Cinabro, D., Conway, J. S., Cowen, D. F., Feng, Z., D. P. S., Gao, Y. S., Grahl, J., Harton, J. L., Jared, R. C., Leclaire, B. W., Lishka, C., Pan, Y. B., Pater, J. R., Saadi, Y., Sharma, V., Schmitt, M., Shi, Z. H., Walsh, A. M., Weber, F. V., S. L., Wu, Wu, X., Zheng, M., Zobernig, G.
Přispěvatelé: Barate, R, Decamp, D, Ghez, P, Goy, C, Lees, Jp, Merle, E, Minard, Mn, Pietrzyk, B, Bravo, S, Casado, Mp, Chmeissani, M, Crespo, Jm, Fernandez, E, Fernandez Bosman, M, Garrido, L, Grauges, E, Martinez, M, Merino, G, Miquel, R, Mir, Lm, Pacheco, A, Ruiz, H, Colaleo, A, Creanza, D, de Palma, M, 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, Boix, G, Buchmuller, O, Cattaneo, M, Cerutti, F, Dissertori, G, Drevermann, H, Forty, Rw, Frank, M, Greening, Tc, Hansen, Jb, Harvey, J, Janot, P, Jost, B, Lehraus, I, Mato, P, Minten, A, Moutoussi, A, Ranjard, F, Rolandi, Luigi, Schlatter, D, Schmitt, M, Schneider, O, Spagnolo, P, Tejessy, W, Teubert, F, Tournefier, E, Wright, Ae, Ajaltouni, Z, Badaud, F, Chazelle, G, Deschamps, O, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, Jc, Pallin, D, Perret, P, Podlyski, F, Hansen, Jd, Hansen, Jr, Hansen, Ph, Nilsson, B, Waananen, A, Daskalakis, G, Kyriakis, A, Markou, C, Simopoulou, E, Vayaki, A, Blondel, A, Bonneaud, G, Brient, Jc, Rouge, A, Rumpf, M, Swynghedauw, M, Verderi, M, Videau, H, Focardi, E, Parrini, G, Zachariadou, K, Antonelli, A, Antonelli, M, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, Gp, Passalacqua, L, Pepe Altarelli, M, Halley, Aw, Lynch, Jg, Negus, P, O'Shea, V, Raine, C, Teixeira Dias, P, Thompson, A, Cavanaugh, R, Dhamotharan, S, Geweniger, C, Hanke, P, Hansper, G, Hepp, V, Kluge, Ee, Putzer, A, Sommer, J, Tittel, K, Werner, S, Wunsch, M, Beuselinck, R, Binnie, Dm, Cameron, W, Dornan, Pj, Girone, M, Marinelli, N, Sedgbeer, Jk, Thompson, Jc, Thomson, E, Ghete, Vm, Girtler, P, Kneringer, E, Kuhn, D, Rudolph, G, Bowdery, Ck, Buck, Pg, Finch, Aj, Foster, F, Hughes, G, Jones, Rwl, Robertson, Na, Giehl, I, Jakobs, K, Kleinknecht, K, Quast, G, Renk, B, Rohne, E, Sander, Hg, Wachsmuth, H, Zeitnitz, C, Bonissent, A, Carr, J, Coyle, P, Leroy, O, Payre, P, Rousseau, D, Talby, M, Aleppo, M, Ragusa, F, Dietl, H, Ganis, G, Heister, A, Huttmann, K, Lutjens, G, Mannert, C, Manner, W, Moser, Hg, Schael, S, Settles, R, Stenzel, H, Wiedenmann, W, Wolf, G, Azzurri, P, Boucrot, J, Callot, O, Chen, S, Cordier, A, Davier, M, Duflot, L, Grivaz, Jf, Heusse, P, Jacholkowska, A, Le Diberder, F, Lefrancois, J, Lutz, Am, Schune, Mh, Veillet, Jj, Videau, I, Yuan, C, Zerwas, D, Bagliesi, G, Boccali, T, Calderini, G, Ciulli, V, Foa, L, Giassi, A, Ligabue, Franco, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Sciaba, A, Sguazzoni, G, Tenchini, R, Venturi, A, Verdini, Pg, Blair, Ga, Cowan, G, Green, Mg, Medcalf, T, Strong, Ja, von Wimmersperg Toeller, Jh, Clifft, Rw, Edgecock, Tr, Norton, Pr, Tomalin, Ir, Bloch Devaux, B, Colas, P, Emery, S, Kozanecki, W, Lancon, E, Lemaire, Mc, Locci, E, Perez, P, Rander, J, Renardy, Jf, Roussarie, A, Schuller, Jp, Schwindling, J, Trabelsi, A, Vallage, B, Black, Sn, Dann, Jh, Johnson, Rp, Kim, Hy, Konstantinidis, N, Litke, Am, Mcneil, Ma, Taylor, G, Booth, Cn, Cartwright, S, Combley, F, Lehto, M, Thompson, Lf, Affholderbach, K, Bohrer, A, Brandt, S, Grupen, C, Misiejuk, A, Prange, G, Sieler, U, Giannini, G, Gobbo, B, Rothberg, J, Wasserbaech, S, Armstrong, Sr, Cranmer, K, Elmer, P, Ferguson, Dp, Gao, Y, Gonzalez, S, Hayes, Oj, Hu, H, Jin, S, Kile, J, Mcnamara, Pa, Nielsen, J, Orejudos, W, Pan, Yb, Saadi, Y, Scott, Ij, Walsh, J, Wu, Sl, Wu, X, Zobernig, G.
Jazyk: angličtina
Rok vydání: 1993
Předmět:
Popis: The lifetimes of the (B) over bar (0) and B- mesons are measured using a sample of about four million hadronic Z decays collected from 1991 to 1995 with the ALEPH detector at LEP. The data sample has been recently reprocessed, achieving a substantial improvement in the tracking performance. Semileptonic decays of (B) over bar (0) and B- mesons are partially reconstructed by identifying events containing a lepton with an associated D*(+) or D-0 meson, The proper time of the B meson is estimated from the measured decay length and the momentum of the D-lepton system. A fit to the proper time of 1880 D*(+)l(-) and 2856 D(0)l(-) candidates yields the following results: tau ((B) over bar0) = 1.518 +/- 0.053 +/- 0.034 ps, tau (B-) = 1.648 +/- 0.049 +/- 0.035 ps, tau (B-)/tau ((B) over bar0) = 1.085 +/- 0.059 +/- 0.018. (C) 2000 Elsevier Science B.V. All rights reserved.
Databáze: OpenAIRE