We present a direct measurement of the parity-violating asymmetry Ab in the Z0 to bb̄ coupling using a new technique to distinguish the b and b̄ quarks using charged kaons from B decays. The Z0 bosons are produced in e+ē collisions at the SLC with longitudinally polarized electrons. bb̄ events are selected using a secondary vertex mass tag and Ab is determined from the left-right forward-backward asymmetry. From the 1994–1995 data sample, selected from 100 000 hadronic Z0 decays, we obtain Ab = 0.855 ± 0.088stat ± 0.102syst.

Abe, K., Abe, K., Abe, T., Adam, I., Akagi, T., Allen, N., et al. (1999). Direct measurement of Ab in Z0 decays using charged kaon Tagging. PHYSICAL REVIEW LETTERS, 83(10), 1902-1907 [10.1103/PhysRevLett.83.1902].

Direct measurement of Ab in Z0 decays using charged kaon Tagging

CARPINELLI, Massimo;
1999

Abstract

We present a direct measurement of the parity-violating asymmetry Ab in the Z0 to bb̄ coupling using a new technique to distinguish the b and b̄ quarks using charged kaons from B decays. The Z0 bosons are produced in e+ē collisions at the SLC with longitudinally polarized electrons. bb̄ events are selected using a secondary vertex mass tag and Ab is determined from the left-right forward-backward asymmetry. From the 1994–1995 data sample, selected from 100 000 hadronic Z0 decays, we obtain Ab = 0.855 ± 0.088stat ± 0.102syst.
Articolo in rivista - Articolo scientifico
Physics
English
1902
1907
6
Kenji Abe et al. (SLD Collaboration)
Abe, K., Abe, K., Abe, T., Adam, I., Akagi, T., Allen, N., et al. (1999). Direct measurement of Ab in Z0 decays using charged kaon Tagging. PHYSICAL REVIEW LETTERS, 83(10), 1902-1907 [10.1103/PhysRevLett.83.1902].
Abe, K; Abe, K; Abe, T; Adam, I; Akagi, T; Allen, N; Arodzero, A; Ash, W; Aston, D; Baird, K; Baltay, C; Band, H; Barakat, M; Bardon, O; Barklow, T; Bashindzhagyan, G; Bauer, J; Bellodi, G; Ben David, R; Benvenuti, A; Bilei, G; Bisello, D; Blaylock, G; Bogart, J; Bolen, B; Bower, G; Brau, J; Breidenbach, M; Bugg, W; Burke, D; Burnett, T; Burrows, P; Byrne, R; Calcaterra, A; Calloway, D; Camanzi, B; Carpinelli, M; Cassell, R; Castaldi, R; Castro, A; Cavalli Sforza, M; Chou, A; Church, E; Cohn, H; Coller, J; Convery, M; Cook, V; Cotton, R; Cowan, R; Coyne, D; Crawford, G; Damerell, C; Danielson, M; Daoudi, M; de Groot, N; Dell'Orso, R; Dervan, P; de Sangro, R; Dima, M; D'Oliveira, A; Dong, D; Doser, M; Dubois, R; Eisenstein, B; Eschenburg, V; Etzion, E; Fahey, S; Falciai, D; Fan, C; Fernandez, J; Fero, M; Flood, K; Frey, R; Gillman, T; Gladding, G; Gonzalez, S; Goodman, E; Hart, E; Harton, J; Hasan, A; Hasuko, K; Hedges, S; Hertzbach, S; Hildreth, M; Huber, J; Huffer, M; Hughes, E; Huynh, X; Hwang, H; Iwasaki, M; Jackson, D; Jacques, P; Jaros, J; Jiang, Z; Johnson, A; Johnson, J; Johnson, R; Junk, T; Kajikawa, R; Kalelkar, M; Kamyshkov, Y; Kang, H; Karliner, I; Kawahara, H; Kim, Y; King, R; King, M; Kofler, R; Krishna, N; Kroeger, R; Langston, M; Lath, A; Leith, D; Lia, V; Lin, C; Liu, X; Liu, M; Loreti, M; Lu, A; Lynch, H; Ma, J; Mahjouri, M; Mancinelli, G; Manley, S; Mantovani, G; Markiewicz, T; Maruyama, T; Masuda, H; Mazzucato, E; Mckemey, A; Meadows, B; Menegatti, G; Messner, R; Mockett, P; Moffeit, K; Moore, T; Morii, M; Muller, D; Murzin, V; Nagamine, T; Narita, S; Nauenberg, U; Neal, H; Nussbaum, M; Oishi, N; Onoprienko, D; Osborne, L; Panvini, R; Park, H; Park, C; Pavel, T; Peruzzi, I; Piccolo, M; Piemontese, L; Pieroni, E; Pitts, K; Plano, R; Prepost, R; Prescott, C; Punkar, G; Quigley, J; Ratcliff, B; Reeves, T; Reidy, J; Reinertsen, P; Rensing, P; Rochester, L; Rowson, P; Russell, J; Saxton, O; Schalk, T; Schindler, R; Schumm, B; Schwiening, J; Sen, S; Serbo, V; Shaevitz, M; Shank, J; Shapiro, G; Sherden, D; Shmakov, K; Simopoulos, C; Sinev, N; Smith, S; Smy, M; Snyder, J; Staengle, H; Stahl, A; Stamer, P; Steiner, R; Steiner, H; Strauss, M; Su, D; Suekane, F; Sugiyama, A; Suzuki, S; Swartz, M; Szumilo, A; Takahashi, T; Taylor, F; Thom, J; Torrence, E; Toumbas, N; Usher, T; Vannini, C; Va'Vra, J; Vella, E; Venuti, J; Verdier, R; Verdini, P; Wagner, S; Wagner, D; Waite, A; Walston, S; Wang, J; Ward, C; Watts, S; Weidemann, A; Weiss, E; Whitaker, J; White, S; Wickens, F; Williams, B; Williams, D; Williams, S; Willocq, S; Wilson, R; Wisniewski, W; Wittlin, J; Woods, M; Word, G; Wright, T; Wyss, J; Yamamoto, R; Yamartino, J; Yang, X; Yashima, J; Yellin, S; Young, C; Yuta, H; Zapalac, G; Zdarko, R; Zhou, J
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