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Measurement of Rb Using a Vertex Mass Tag
Authors :
K. Abe T. Akagi N. J. Allen W. W. Ash D. Aston K. G. Baird C. Baltay H. R. Band M. B. Barakat G. Baranko O. Bardon T. L. Barklow G. L. Bashindzhagyan A. O. Bazarko R. Ben-David A. C. Benvenuti G. M. Bilei D. Bisello G. Blaylock J. R. Bogart B. Bolen T. Bolton G. R. Bower J. E. Brau M. Breidenbach W. M. Bugg D. Burke T. H. Burnett P. N. Burrows W. Busza A. Calcaterra D. O. Caldwell D. Calloway B. Camanzi M. Carpinelli R. Cassell R. Castaldi A. Castro M. Cavalli-Sforza A. Chou E. Church H. O. Cohn J. A. Coller V. Cook R. Cotton R. F. Cowan D. G. Coyne G. Crawford A. D'Oliveira C. J. S. Damerell M. Daoudi N. de Groot R. De Sangro R. Dell'Orso P. J. Dervan M. Dima D. N. Dong P. Y. C. Du R. Dubois B. I. Eisenstein R. Elia E. Etzion S. Fahey D. Falciai C. Fan J. P. Fernandez M. J. Fero R. Frey T. Gillman G. Gladding S. Gonzalez E. L. Hart J. L. Harton A. Hasan Y. Hasegawa K. Hasuko S. J. Hedges S. S. Hertzbach M. D. Hildreth J. Huber M. E. Huffer E. W. Hughes H. Hwang Y. Iwasaki D. J. Jackson P. Jacques J. A. Jaros Z. Y. Jiang A. S. Johnson J. R. Johnson R. A. Johnson T. Junk R. Kajikawa M. Kalelkar H. J. Kang I. Karliner H. Kawahara H. W. Kendall Y. D. Kim M. E. King R. King R. R. Kofler N. M. Krishna R. S. Kroeger J. F. Labs M. Langston A. Lath J. A. Lauber D. W. G. S. Leith V. Lia M. X. Liu X. Liu M. Loreti A. Lu H. L. Lynch J. Ma G. Mancinelli S. Manly G. Mantovani T. W. Markiewicz T. Maruyama H. Masuda E. Mazzucato A. K. McKemey B. T. Meadows R. Messner P. M. Mockett K. C. Moffeit T. B. Moore D. Muller T. Nagamine S. Narita U. Nauenberg H. Neal M. Nussbaum Y. Ohnishi N. Oishi D. Onoprienko L. S. Osborne R. S. Panvini C. H. Park H. Park T. J. Pavel I. Peruzzi M. Piccolo L. Piemontese E. Pieroni K. T. Pitts R. J. Plano R. Prepost C. Y. Prescott G. D. Punkar J. Quigley B. N. Ratcliff T. W. Reeves J. Reidy P. L. Reinertsen P. E. Rensing L. S. Rochester P. C. Rowson J. J. Russell O. H. Saxton T. Schalk R. H. Schindler B. A. Schumm J. Schwiening S. Sen V. V. Serbo M. H. Shaevitz J. T. Shank G. Shapiro D. J. Sherden K. D. Shmakov C. Simopoulos N. B. Sinev S. R. Smith M. B. Smy J. A. Snyder H. Staengle P. Stamer H. Steiner R. Steiner M. G. Strauss D. Su F. Suekane A. Sugiyama S. Suzuki M. Swartz A. Szumilo T. Takahashi F. E. Taylor E. Torrence A. I. Trandafir J. D. Turk T. Usher J. Va'vra C. Vannini E. Vella J. P. Venuti R. Verdier P. G. Verdini D. L. Wagner S. R. Wagner A. P. Waite S. J. Watts A. W. Weidemann E. R. Weiss J. S. Whitaker S. L. White F. J. Wickens D. C. Williams S. H. Williams S. Willocq R. J. Wilson W. J. Wisniewski M. Woods G. B. Word J. Wyss R. K. Yamamoto J. M. Yamartino X. Yang J. Yashima S. J. Yellin C. C. Young H. Yuta G. Zapalac R. W. Zdarko J. Zhou Abe, K Akagi, T Allen, N Ash, W Aston, D Baird, K Baltay, C Band, H Barakat, M Baranko, G Bardon, O Barklow, T Bashindzhagyan, G Bazarko, A Ben David, R Benvenuti, A Bilei, G Bisello, D Blaylock, G Bogart, J Bolen, B Bolton, T Bower, G Brau, J Breidenbach, M Bugg, W Burke, D Burnett, T Burrows, P Busza, W Calcaterra, A Caldwell, D Calloway, D Camanzi, B Carpinelli, M Cassell, R Castaldi, R Castro, A Cavalli Sforza, M Chou, A Church, E Cohn, H Coller, J Cook, V Cotton, R Cowan, R Coyne, D Crawford, G D'Oliveira, A Damerell, C Daoudi, M de Groot, N De Sangro, R Dell'Orso, R Dervan, P Dima, M Dong, D Du, P Dubois, R Eisenstein, B Elia, R Etzion, E Fahey, S Falciai, D Fan, C Fernandez, J Faro, M Frey, R Gillman, T Gladding, G Gonzalez, S Hart, E Harton, J Hasan, A Hasegawa, Y Hasuko, K Hedges, S Hertzbach, S Hildreth, M Huber, J Huffer, M Hughes, E Hwang, H Iwasaki, Y Jackson, D Jacques, P Jaros, J Jiang, Z Johnson, A Johnson, J Johnson, R Junk, T Kajikawa, R Kalelkar, M Kang, H Karliner, I Kawahara, H Kendall, H Kim, Y King, M King, R Kofler, R Krishna, N Kroeger, R Labs, J Langston, M Lath, A Lauber, J Leith, D Lia, V Liu, M Liu, X Loreti, M Lu, A Lynch, H Ma, J Mancinelli, G Manly, S Mantovani, G Markiewicz, T Maruyama, T Masuda, H Mazzucato, E Mckemey, A Meadows, B Messner, R Mockett, P Moffeit, K Moore, T Muller, D Nagamine, T Narita, S Nauenberg, U Neal, H Nussbaum, M Ohnishi, Y Oishi, N Onoprienko, D Osborne, L Panvini, R Park, C Park, H 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 Schall, 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 Stamer, P Steiner, H Steiner, R Strauss, M Su, D Suekane, F Sugiyama, A Suzuki, S Swartz, M Szumilo, A Takahashi, T Taylor, F Torrence, E Trandafir, A Turk, J Usher, T Va'Vra, J Vannini, C Vella, E Venuti, J Verdier, R Verdini, P Wagner, D Wagner, S Waite, A Watts, S Weidemann, A Weiss, E Whitaker, J White, S Wickens, F Williams, D Williams, S Willocq, S Wilson, R Wisniewski, W Woods, M Word, G Wyss, J Yamamoto, R Yamartino, J Yang, X Yashima, J Yellin, S Young, C Yuta, H Zapalac, G Zdarko, R Zhou, J
Source :
Scopus-Elsevier
Publication Year :
1998
Publisher :
American Physical Society, 1998.
Abstract
We report a new measurement of Rb = Gamma(Z0->b-bbar) / Gamma(Z0->hadrons) using a double tag technique, where the b hemisphere selection is based on the reconstructed mass of the B hadron decay vertex. The measurement was performed using a sample of 130k hadronic Z0 events, collected with the SLD at the SLC. The method utilizes the 3-D vertexing abilities of the CCD pixel vertex detector and the small stable SLC beams to obtain a high b-tagging efficiency and purity. We obtain Rb=0.2142+/-0.0034(stat.)+/-0.0015(syst.)+/-0.0002(R_c).<br />11 pages including 3 eps files
Details
Language :
English
ISSN :
00319007
Volume :
80
Issue :
4
Database :
OpenAIRE
Journal :
Physical Review Letters
Accession number :
edsair.doi.dedup.....9c3fc0978b7844dca09a1b300fb63387