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http://acervodigital.unesp.br/handle/11449/24459- Title:
- Measurement of the top quark mass in final states with two leptons
- Abazov, V. M.
- Abbott, B.
- Abolins, M.
- Acharya, B. S.
- Adams, M.
- Adams, T.
- Aguilo, E.
- Ahsan, M.
- Alexeev, G. D.
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- Landsberg, G.
- Royon, C.
- Snow, J.
- Voutilainen, M.
- Rubinov, P.
- Ruchti, R.
- Safronov, G.
- Gutierrez, G.
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- Otec, R.
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- Sanders, M. P.
- Lebrun, P.
- Kuzmin, V. A.
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- Dominguez, A.
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- Snyder, S.
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- Blazey, G.
- Soeldner-Rembold, S.
- Orduna, J.
- Sonnenschein, L.
- Heintz, U.
- Alverson, G.
- Leflat, A.
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- Wagner, R.
- Sosebee, M.
- Soustruznik, K.
- Escalier, M.
- Spurlock, B.
- Blessing, S.
- Stark, J.
- Stolin, V.
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- Stoyanova, D. A.
- Strandberg, J.
- Belanger-Champagne, C.
- Beri, S. B.
- Parsons, J.
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- Iashvili, I.
- Strandberg, S.
- Strang, M. A.
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- Strauss, M.
- Stroehmer, R.
- Deliot, F.
- Strom, D.
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- Wahl, H. D.
- Gutierrez, P.
- Dubey, A.
- Tuts, P. M.
- Sumowidagdo, S.
- Li, J.
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- Takahashi, M.
- Bellantoni, L.
- Evans, H.
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- Houben, P.
- Osman, N.
- Taylor, W.
- Wang, M. H. L. S.
- Bloom, K.
- Tiller, B.
- Tissandier, F.
- Titov, M.
- Tokmenin, V. V.
- Li, L.
- Andeen, T.
- Bean, A.
- Dudko, L. V.
- Torchiani, I.
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- Tsybychev, D.
- Osta, J.
- Obrant, G.
- Hesketh, G.
- Tuchming, B.
- Warchol, J.
- Duperrin, A.
- Illingworth, R.
- Evdokimov, A.
- Watts, G.
- Schaile, D.
- Wayne, M.
- Baldin, B.
- Baringer, P.
- Weber, G.
- Boehnlein, A.
- Weber, M.
- Welty-Rieger, L.
- Ito, A. S.
- Wenger, A.
- Evdokimov, V. N.
- Wetstein, M.
- Bernardi, G.
- Hildreth, M. D.
- Schamberger, R. D.
- White, A.
- Wicke, D.
- Dutt, S.
- Edmunds, D.
- Shary, V.
- Otero y Garzon, G. J.
- Lincoln, D.
- Severini, H.
- Williams, M. R. J.
- Wilson, G. W.
- Wimpenny, S. J.
- Wobisch, M.
- Wood, D. R.
- Hedin, D.
- Wyatt, T. R.
- Penning, B.
- Xie, Y.
- Boline, D.
- Hirosky, R.
- Yu, J.
- Xu, C.
- Owen, M.
- Bernhard, R.
- Linnemann, J.
- Yacoob, S.
- Ancu, L. S.
- Jabeen, S.
- Yamada, R.
- Scheglov, Y.
- Yang, W. -C.
- Bolton, T. A.
- Facini, G.
- Yasuda, T.
- Yatsunenko, Y. A.
- Ye, Z.
- Yin, H.
- Padilla, M.
- Cousinou, M. -C.
- Hoang, T.
- Yip, K.
- Hadley, N. J.
- Yoo, H. D.
- Schellman, H.
- Savage, G.
- Lipton, R.
- Youn, S. W.
- Boos, E. E.
- Hohlfeld, M.
- Jaffre, M.
- Borissov, G.
- Unalan, R.
- Bose, T.
- Demarteau, M.
- Diehl, H. T.
- Brandt, A.
- Ferapontov, A. V.
- Brandt, O.
- Brock, R.
- Brooijmans, G.
- Jain, S.
- Bross, A.
- Ellison, J.
- Liu, Y.
- Uvarov, L.
- Brown, D.
- Bu, X. B.
- Hossain, S.
- Hu, Y.
- Schliephake, T.
- Park, S. -J.
- Benitez, J. A.
- Buchholz, D.
- Buehler, M.
- Buescher, V.
- Bunichev, V.
- Burdin, S.
- Li, Q. Z.
- Burnett, T. H.
- Buszello, C. P.
- Ferbel, T.
- Liu, Z.
- Chan, K. M.
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- Schlobohm, S.
- Elvira, V. D.
- Park, S. K.
- Calpas, B.
- Couderc, F.
- Calvet, S.
- Uvarov, S.
- Cammin, J.
- Fiedler, F.
- Atramentov, O.
- Carrasco-Lizarraga, M. A.
- Carrera, E.
- Carvalho, W.
- Casey, B. C. K.
- Schwanenberger, C.
- Lobodenko, A.
- Castilla-Valdez, H.
- Kvita, J.
- Chakrabarti, S.
- Uzunyan, S.
- Tully, C.
- Partridge, R.
- Chakraborty, D.
- Filthaut, F.
- Lubatti, H. J.
- Fisher, W.
- Zeitnitz, C.
- Fisk, H. E.
- Hegeman, J. G.
- Askew, A.
- Fortner, M.
- Jakobs, K.
- Anzelc, M. S.
- Fox, H.
- Fu, S.
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- Zelitch, S.
- Gadfort, T.
- Galea, C. F.
- Bandurin, D. V.
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- Vachon, B.
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- Garcia-Bellido, A.
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- Gay, P.
- Geist, W.
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- Gerber, C. E.
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- Parua, N.
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- van den Berg, P. J.
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- Shamim, M.
- Gillberg, D.
- Haefner, P.
- Ginther, G.
- Zhao, T.
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- Van Kooten, R.
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- Greenwood, Z. D.
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- Zhou, B.
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- Perfilov, M.
- Johns, K.
- Chandra, A.
- Johnson, C.
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- Davies, G.
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- Crepe-Renaudin, S.
- Johnston, D.
- Jonckheere, A.
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- Kasper, P. A.
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- Kaushik, V.
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- Vasilyev, I. A.
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- Zieminska, D.
- Shivpuri, R. K.
- Kirby, M. H.
- Sawyer, L.
- Cutts, D.
- Choi, S.
- Kirsch, M.
- Joint Inst Nucl Res
- Centro Brasileiro de Pesquisas Físicas (CBPF)
- Univ Estado Rio de Janeiro
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- 1550-7998
- Department of Energy (DOE) and National Science Foundation (NSF) - USA
- Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
- Rosatom State Atomic Energy Corporation (ROSATOM)
- Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
- Department of Science and Technology (DST) - India
- Colciencias (Colombia)
- Consejo Nacional de Ciencia y Tecnología (CONACYT)
- Korea Science and Engineering Foundation (KOSEF)
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Foundation for Fundamental Research on Matter (FOM)
- Science and Technology Facilities Council (STFC)
- Czech Science Foundation (GACR)
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Bundesministerium für Bildung und Forschung (BMBF)
- Science Foundation Ireland (SFI)
- Swedish Research Council
- CAS and CNSF (China)
- Alexander von Humboldt Foundation
- We present measurements of the top quark mass (m(t)) in tt candidate events with two final state leptons using 1 fb(-1) of data collected by the D0 experiment. Our data sample is selected by requiring two fully identified leptons or by relaxing one lepton requirement to an isolated track if at least one jet is tagged as a b jet. The top quark mass is extracted after reconstructing the event kinematics under the tt hypothesis using two methods. In the first method, we integrate over expected neutrino rapidity distributions, and in the second we calculate a weight for the possible top quark masses based on the observed particle momenta and the known parton distribution functions. We analyze 83 candidate events in the data and obtain m(t)=176.2 +/- 4.8(stat)+/- 2.1(sys) GeV and m(t)=173.2 +/- 4.9(stat)+/- 2.0(sys) GeV for the two methods, respectively. Accounting for correlations between the two methods, we combine the measurements to obtain m(t)=174.7 +/- 4.4(stat)+/- 2.0(sys) GeV.
- 1-Nov-2009
- Physical Review D. College Pk: Amer Physical Soc, v. 80, n. 9, p. 20, 2009.
- 20
- Amer Physical Soc
- http://dx.doi.org/10.1103/PhysRevD.80.092006
- http://hdl.handle.net/11449/24459
- Acesso restrito
- outro
- http://repositorio.unesp.br/handle/11449/24459
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