Measurement of the W boson helicity in top quark decays using 5.4 fb^-1 of ppbar collision data
Creators: name: Abazov, V. M.
name: Abbott, B.
name: Acharya, B. S.
name: Adams, M.
name: Adams, T.
name: Alexeev, G. D.
name: Alkhazov, G.
name: Altona, A.
name: Alverson, G.
name: Alves, G. A.
name: Ancu, L. S.
name: Aoki, M.
name: Arnoud, Y.
name: Arov, M.
name: Askew, A.
name: Asman, B.
name: Atramentov, O.
name: Avila, C.
name: BackusMayes, J.
name: Badaud, F.
name: Bagby, L.
name: Baldin, B.
name: Bandurin, D. V.
name: Banerjee, S.
name: Barberis, E.
name: Baringer, P.
name: Barreto, J.
name: Bartlett, J. F.
name: Bassler, U.
name: Bazterra, V.
name: Beale, S.
name: Bean, A.
name: Begalli, M.
name: Begel, M.
name: Belanger-Champagne, C.
name: Bellantoni, L.
name: Beri, S. B.
name: Bernardi, G.
name: Bernhard, R.
name: Bertram, I.
name: Besancon, M.
name: Beuselinck, R.
name: Bezzubov, V. A.
name: Bhat, P. C.
name: Bhatnagar, V.
name: Blazey, G.
name: Blessing, S.
name: Bloom, K.
name: Boehnlein, A.
name: Boline, D.
name: Bolton, T. A.
name: Boos, E. E.
name: Borissov, G.
name: Bose, T.
name: Brandt, A.
name: Brandt, O.
name: Brock, R.
name: Brooijmans, G.
name: Bross, A.
name: Brown, D.
name: Brown, J.
name: Bu, X. B.
name: Buehler, M.
name: Buescher, V.
name: Bunichev, V.
name: Burdinb, S.
name: Burnett, T. H.
name: Buszello, C. P.
name: Calpas, B.
name: Camacho-Perez, E.
name: Carrasco-Lizarraga, M. A.
name: Casey, B. C. K.
name: Castilla-Valdez, H.
name: Chakrabarti, S.
name: Chakraborty, D.
name: Chan, K. M.
name: Chandra, A.
name: Chen, G.
name: Chevalier-Thery, S.
name: Cho, D. K.
name: Cho, S. W.
name: Choi, S.
name: Choudhary, B.
name: Christoudias, T.
name: Cihangir, S.
name: Claes, D.
name: Clutter, J.
name: Cooke, M.
name: Cooper, W. E.
name: Corcoran, M.
name: Couderc, F.
name: Cousinou, M. -C.
name: Croc, A.
name: Cutts, D.
name: Cwiok, M.
name: Das, A.
name: Davies, G.
name: De, K.
name: de Jong, S. J.
name: De La Cruz-Burelo, E.
name: Deliot, F.
name: Demarteau, M.
name: Demina, R.
name: Denisov, D.
name: Denisov, S. P.
name: Desai, S.
name: DeVaughan, K.
name: Diehl, H. T.
name: Diesburg, M.
name: Dominguez, A.
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name: Dudko, L. V.
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name: Duperrin, A.
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name: Edmunds, D.
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name: Elvira, V. D.
name: Enari, Y.
name: Evans, H.
name: Evdokimov, A.
name: Evdokimov, V. N.
name: Facini, G.
name: Ferbel, T.
name: Fiedler, F.
name: Filthaut, F.
name: Fisher, W.
name: Fisk, H. E.
name: Fortner, M.
name: Fox, H.
name: Fuess, S.
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name: Garcia-Bellido, A.
name: Gavrilov, V.
name: Gay, P.
name: Geist, W.
name: Geng, W.
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name: La Cruz, I. Heredia-De
name: Herner, K.
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name: Hildreth, M. D.
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name: Johns, K.
name: Johnson, M.
name: Johnston, D.
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name: Jonsson, P.
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name: Lietti, S. M.
name: Lim, J. K.
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name: Lipton, R.
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name: Lokajicek, M.
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name: Lubatti, H. J.
name: Luna-Garciae, R.
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name: Martinez-Ortega, J.
name: McCarthy, R.
name: McGivern, C. L.
name: Meijer, M. M.
name: Melnitchouk, A.
name: Menezes, D.
name: Mercadante, P. G.
name: Merkin, M.
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name: Mulhearn, M.
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name: van Leeuwen, W. M.
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name: Wahl, H. D.
name: Wang, M. H. L. S.
name: Warchol, J.
name: Watts, G.
name: Wayne, M.
name: Weberg, M.
name: Welty-Rieger, L.
name: White, A.
name: Wicke, D.
name: Williams, M. R. J.
name: Wilson, G. W.
name: Wimpenny, S. J.
name: Wobisch, M.
name: Wood, D. R.
name: Wyatt, T. R.
name: Xie, Y.
name: Xu, C.
name: Yacoob, S.
name: Yamada, R.
name: Yang, W. -C.
name: Yasuda, T.
name: Yatsunenko, Y. A.
name: Ye, Z.
name: Yin, H.
name: Yip, K.
name: Youn, S. W.
name: Yu, J.
name: Zelitch, S.
name: Zhao, T.
name: Zhou, B.
name: Zhu, J.
name: Zielinski, M.
name: Zieminska, D.
name: Zivkovic, L.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We present a measurement of the helicity of the W boson produced in top quark decays using ttbar decays in the l+jets and dilepton final states selected from a sample of 5.4 fb^-1 of collisions recorded using the D0 detector at the Fermilab Tevatron ppbar collider. We measure the fractions of longitudinal and right-handed W bosons to be f_0 = 0.669 +- 0.102 [ +- 0.078 (stat.) +- 0.065 (syst.)] and f_+ = 0.023 +- 0.053 [+- 0.041 (stat.) +- 0.034 (syst.)], respectively. This result is consistent at the 98% level with the standard model. A measurement with f_0 fixed to the value from the standard model yields f_+ = 0.010 +- 0.037 [+- 0.022 (stat.) +- 0.030 (syst.) ].
description: To be submitted to Phys. Rev. D