1. DDirect measurement of Ab and Ac at the Z0 pole using a lepton tag
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Abe K, Abe T, Adam I, Akagi T, Allen NJ, Arodzero A, Ash WW, Aston D, Baird KG, Baltay C, Band HR, Barakat MB, Bardon O, Barklow TL, Bashindzhagyan GL, Bauer JM, Bellodi G, Ben David R, Benvenuti AC, Bilei GM, Bisello D, Blaylock G, Bogart JR, Bolen B, Bower GR, Brau JE, Breidenbach M, Bugg WM, Burke D, Burnett TH, Burrows PN, Byrne RM, Calcaterra A, Calloway D, Camanzi B, CARPINELLI, Massimo, Cassell R, Castaldi R, Castro A, Cavalli Sforza M, Chou A, Church E, Cohn HO, Coller JA, Convery MR, Cook V, Cotton R, Cowan RF, Coyne DG, Crawford G, Damerell CJS, Danielson MN, Daoudi M, de Groot N, Dell'Orso R, Dervan PJ, de Sangro R, Dima M, D'Oliveira A, Dong DN, Doser M, Dubois R, Eisenstein BI, Eschenburg V, Etzion E, Fahey S, Falciai D, Fan C, Fernandez JP, Fero MJ, Flood K, Frey R, Gillman T, Gladding G, Gonzalez S, Goodman ER, Hart EL, Harton JL, Hasan A, Hasuko K, Hedges SJ, Hertzbach SS, Hildreth MD, Huber J, Huffer ME, Hughes EW, Huynh X, Hwang H, Iwasaki M, Jackson DJ, Jacques P, Jaros JA, Jiang ZY, Johnson AS, Johnson JR, Johnson RA, Junk T, Kajikawa R, Kalelkar M, Kamyshkov Y, Kang HJ, Karliner I, Kawahara H, Kim YD, King R, King ME, Kofler RR, Krishna NM, Kroeger RS, Langston M, Lath A, Leith DWG, Lia V, Lin CJS, Liu X, Liu MX, Loreti M, Lu A, Lynch HL, Ma J, Mahjouri H, Mancinelli G, Manly S, Mantovani G, Markiewicz TW, Maruyama T, Masuda H, Mazzucato E, McKemey AK, Meadows BT, Menegatti G, Messner R, Mockett PM, Moffeit KC, Moore TB, Morii M, Muller D, Murzin V, Nagamine T, Narita S, Nauenberg U, Neal H, Nussbaum M, Oishi N, Onoprienko D, Osborne LS, Panvini RS, Park H, Park CH, Pavel TJ, Peruzzi I, Piccolo M, Piemontese L, Pieroni E, Pitts KT, Plano RJ, Prepost R, Prescott CY, Punkar GD, Quigley J, Ratcliff BN, Reeves TW, Reidy J, Reinertsen PL, Rensing PE, Rochester LS, Rowson PC, Russell JJ, Saxton OH, Schalk T, Schindler RH, Schumm BA, Schwiening J, Sen S, Serbo VV, Shaevitz MH, Shank JT, Shapiro G, Sherden DJ, Shmakov KD, Simopoulos C, Sinev NB, Smith SR, Smy MB, Snyder JA, Staengle H, Stahl A, Stamer P, Steiner R, Steiner H, Strauss MG, Su D, Suekane F, Sugiyama A, Suzuki S, Swartz M, Szumilo A, Takahashi T, Taylor FE, Thom J, Torrence E, Toumbas NK, Usher T, Vannini C, Va'vra J, Vella E, Venuti JP, Verdier R, Verdini PG, Wagner SR, Wagner DL, Waite AP, Walston S, Wang J, Ward C, Watts SJ, Weidemann AW, Weiss ER, Whitaker JS, White SL, Wickens FJ, Williams B, Williams DC, Williams SH, Willocq S, Wilson RJ, Wisniewski WJ, Wittlin JL, Woods M, Word GB, Wright TR, Wyss J, Yamamoto RK, Yamartino JH, Yang X, Yashima J, Yellin SJ, Young CC, Yuta H, Zapalac G, Zdarko RW, Zhou J., 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, H, Mancinelli, G, Manly, 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, and Zhou, J
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Physics - Abstract
The parity violation parameters Ab and Ac of the Zbb¯ and Zcc¯ couplings have been measured directly, using the polar angle dependence of the Z0-pole polarized cross sections. Bottom and charmed hadrons were tagged via semileptonic decays. Both the muon and electron identification algorithms take advantage of new multivariate techniques, incorporating for the first time information from the SLD Čerenkov Ring Imaging Detector. Based on the 1993–1995 SLD sample of 150 000 Z0 decays produced with highly polarized electron beams, we measure Ab=0.910±0.068(stat)±0.037(syst), Ac=0.642±0.110(stat)±0.063(syst).
- Published
- 1999