MEASUREMENT OF B0-BBAR0 MIXING AT THE CERN SPPBARS COLLIDER

Albajar, C; Albrow, Mg; Allkofer, Oc; Ankoviak, K; Apsimon, R; Aubert, B; Bacci, C; Bartha, S; Bauer, G; Bettini, A; Bezaguet, A; Biddulph, P; Bohn, H; Bohrer, A; Bonino, R; Bos, K; Botlo, M; Brockhausen, D; Buchanan, C; Buschbeck, B; Busetto, G; Caner, A; Casoli, P; Castilla-Valdez, H; Cavanna, F; Cennini, P; Centro, S; Ceradini, F; Ciapetti, G; Cittolin, S; Clayton, E; Cline, D; Colas, J; Conte, R; Coughlan, Ja; Dau, D; Daum, C; Della Negra, M; Demoulin, M; Denegri, D; Dibon, H; Diciaccio, A; Hedo, Fjd; Dobrzynski, L; Dorenbosch, J; Dowell, Jd; Drijard, D; Eggert, K; Eisenhandler, E; Ellis, N; Evans, H; Faissner, H; Felcini, M; Fensome, If; Ferrando, A; Fortson, L; Fuess, T; Garvey, J; Geiser, A; Givernaud, A; Gonidec, A; Gonzalez, B; Gregory, Jm; Gronberg, J; Holthuizen, Dj; Jank, W; Jorat, G; Josa, Mi; Kalmus, Pip; Karimaki, V; Kenyon, I; Kinnunen, R; Krammer, M; Kryn, D; Lacava, F; Lammel, S; Landon, M; Lemoigne, Y; Levegrun, S; Linglin, D; Lipa, P; Markou, C; Markytan, M; Marquina, Ma; Martinelli, R; Maurin, G; Mcmahon, S; Mendiburu, Jp; Meneguzzo, A; Merlo, Jp; Meyer, T; Moers, T; Mohammadi, M; Morgan, K; Morsch, A; Moulin, A; Muller, T; Munoz, R; Naumann, L; Nedelec, P; Nikitas, M; Nisati, A; Norton, A; O'Dell, V; Otwinowski, S; Pancheri, G; Passaseo, M; Pauss, F; Petrolo, E; Mortari, Gp; Pietarinen, E; Pimia, M; Placci, A; Pontecorvo, L; Porte, Jp; Priem, R; Prosi, R; Radermacher, E; Rauschkolb, M; Reithler, H; Revol, Jp; Robins, S; Robinson, D; Rodrigo, T; Rohlf, J; Rubbia, C; Sajot, G; Salicio, Jm; Samyn, D; Schinzel, D; Schleichert, R; Schroder, M; Seez, C; Shah, Tp; Sphicas, P; Stork, D; Stubenrauch, C; Sumorok, K; Szoncso, F; Tan, Ch; Taurok, A; Taylor, L; Tether, S; Teykal, H; Thompson, G; Torrente-Lujan, E; Tuchscherer, H; Tuominiemi, J; van de Guchte, W; van Dijk, A; Vargas, M; Veneziano, S; Vialle, Jp; Virdee, Ts; von Schlippe, W; Vrana, J; Vuillemin, V; Wacker, K; Wagner, H; Wu, X; Wulz, Ce; Yvert, M; Zacharov, I; Zanello, L; Zolnierowski, Y; Zotto, P

doi:10.1016/0370-2693(91)90661-9

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We report on a new measurement of B0-BBAR0 mixing at the CERN SppBARS Collider. Mixing is measured in the non-isolated high mass dimuon sample using data from the 1988-1989 collider runs. The measured value of the mixing parameter, chi, is 0.145 +/- 0.035(stat.) +/- 0.014(syst.). The average of this measurement and that from our 1984-1985 data is chi = 0.148 +/- 0.029(stat.) +/- 0.017(syst.) assuming fully correlated systematic errors. Using the measurement of chi-d from ARGUS and CLEO, we obtain chi-s = 0.50 +/- 0.20, which gives a limit of chi-s > 0.17 (0.12) at 90% (95%) CL. Including the measurements of chi from the ALEPH and L3 experiments gives chi-s = 0.53 +/- 0.15, and a limit of chi-s > 0.27 (0.23) at 90% (95%) CL.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11697/3678

Titolo:	MEASUREMENT OF B0-BBAR0 MIXING AT THE CERN SPPBARS COLLIDER
Autori interni:	CAVANNA, FLAVIO
Data di pubblicazione:	1991
Rivista:	PHYSICS LETTERS. SECTION B
Abstract:	We report on a new measurement of B0-BBAR0 mixing at the CERN SppBARS Collider. Mixing is measured in the non-isolated high mass dimuon sample using data from the 1988-1989 collider runs. The measured value of the mixing parameter, chi, is 0.145 +/- 0.035(stat.) +/- 0.014(syst.). The average of this measurement and that from our 1984-1985 data is chi = 0.148 +/- 0.029(stat.) +/- 0.017(syst.) assuming fully correlated systematic errors. Using the measurement of chi-d from ARGUS and CLEO, we obtain chi-s = 0.50 +/- 0.20, which gives a limit of chi-s > 0.17 (0.12) at 90% (95%) CL. Including the measurements of chi from the ALEPH and L3 experiments gives chi-s = 0.53 +/- 0.15, and a limit of chi-s > 0.27 (0.23) at 90% (95%) CL.
Handle:	http://hdl.handle.net/11697/3678
Appare nelle tipologie:	1.1 Articolo in rivista

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