@article{3073284,
    title = "W-boson polarization measurement in the tt- dilepton channel using the CDF II detector",
    author = "Aaltonen, T. and Álvarez González, B. and Amerio, S. and Amidei, D. and Anastassov, A. and Annovi, A. and Antos, J. and Apollinari, G. and Appel, J.A. and Arisawa, T. and Artikov, A. and Asaadi, J. and Ashmanskas, W. and Auerbach, B. and Aurisano, A. and Azfar, F. and Badgett, W. and Bae, T. and Barbaro-Galtieri, A. and Barnes, V.E. and Barnett, B.A. and Barria, P. and Bartos, P. and Bauce, M. and Bedeschi, F. and Behari, S. and Bellettini, G. and Bellinger, J. and Benjamin, D. and Beretvas, A. and Bhatti, A. and Bisello, D. and Bizjak, I. and Bland, K.R. and Blumenfeld, B. and Bocci, A. and Bodek, A. and Bortoletto, D. and Boudreau, J. and Boveia, A. and Brigliadori, L. and Bromberg, C. and Brucken, E. and Budagov, J. and Budd, H.S. and Burkett, K. and Busetto, G. and Bussey, P. and Buzatu, A. and Calamba, A. and Calancha, C. and Camarda, S. and Campanelli, M. and Campbell, M. and Canelli, F. and Carls, B. and Carlsmith, D. and Carosi, R. and Carrillo, S. and Carron, S. and Casal, B. and Casarsa, M. and Castro, A. and Catastini, P. and Cauz, D. and Cavaliere, V. and Cavalli-Sforza, M. and Cerri, A. and Cerrito, L. and Chen, Y.C. and Chertok, M. and Chiarelli, G. and Chlachidze, G. and Chlebana, F. and Cho, K. and Chokheli, D. and Chung, W.H. and Chung, Y.S. and Ciocci, M.A. and Clark, A. and Clarke, C. and Compostella, G. and Convery, M.E. and Conway, J. and Corbo, M. and Cordelli, M. and Cox, C.A. and Cox, D.J. and Crescioli, F. and Cuevas, J. and Culbertson, R. and Dagenhart, D. and D'Ascenzo, N. and Datta, M. and De Barbaro, P. and Dell'Orso, M. and Demortier, L. and Deninno, M. and Devoto, F. and D'Errico, M. and Di Canto, A. and Di Ruzza, B. and Dittmann, J.R. and D'Onofrio, M. and Donati, S. and Dong, P. and Dorigo, M. and Dorigo, T. and Ebina, K. and Elagin, A. and Eppig, A. and Erbacher, R. and Errede, S. and Ershaidat, N. and Eusebi, R. and Farrington, S. and Feindt, M. and Fernandez, J.P. and Field, R. and Flanagan, G. and Forrest, R. and Frank, M.J. and Franklin, M. and Freeman, J.C. and Funakoshi, Y. and Furic, I. and Gallinaro, M. and Garcia, J.E. and Garfinkel, A.F. and Garosi, P. and Gerberich, H. and Gerchtein, E. and Giagu, S. and Giakoumopoulou, V. and Giannetti, P. and Gibson, K. and Ginsburg, C.M. and Giokaris, N. and Giromini, P. and Giurgiu, G. and Glagolev, V. and Glenzinski, D. and Gold, M. and Goldin, D. and Goldschmidt, N. and Golossanov, A. and Gomez, G. and Gomez-Ceballos, G. and Goncharov, M. and González, O. and Gorelov, I. and Goshaw, A.T. and Goulianos, K. and Grinstein, S. and Grosso-Pilcher, C. and Group, R.C. and Guimaraes Da Costa, J. and Hahn, S.R. and Halkiadakis, E. and Hamaguchi, A. and Han, J.Y. and Happacher, F. and Hara, K. and Hare, D. and Hare, M. and Harr, R.F. and Hatakeyama, K. and Hays, C. and Heck, M. and Heinrich, J. and Herndon, M. and Hewamanage, S. and Hocker, A. and Hopkins, W. and Horn, D. and Hou, S. and Hughes, R.E. and Hurwitz, M. and Husemann, U. and Hussain, N. and Hussein, M. and Huston, J. and Introzzi, G. and Iori, M. and Ivanov, A. and James, E. and Jang, D. and Jayatilaka, B. and Jeon, E.J. and Jindariani, S. and Jones, M. and Joo, K.K. and Jun, S.Y. and Junk, T.R. and Kamon, T. and Karchin, P.E. and Kasmi, A. and Kato, Y. and Ketchum, W. and Keung, J. and Khotilovich, V. and Kilminster, B. and Kim, D.H. and Kim, H.S. and Kim, J.E. and Kim, M.J. and Kim, S.B. and Kim, S.H. and Kim, Y.K. and Kim, Y.J. and Kimura, N. and Kirby, M. and Klimenko, S. and Knoepfel, K. and Kondo, K. and Kong, D.J. and Konigsberg, J. and Kotwal, A.V. and Kreps, M. and Kroll, J. and Krop, D. and Kruse, M. and Krutelyov, V. and Kuhr, T. and Kurata, M. and Kwang, S. and Laasanen, A.T. and Lami, S. and Lammel, S. and Lancaster, M. and Lander, R.L. and Lannon, K. and Lath, A. and Latino, G. and LeCompte, T. and Lee, E. and Lee, H.S. and Lee, J.S. and Lee, S.W. and Leo, S. and Leone, S. and Lewis, J.D. and Limosani, A. and Lin, C.-J. and Lindgren, M. and Lipeles, E. and Lister, A. and Litvintsev, D.O. and Liu, C. and Liu, H. and Liu, Q. and Liu, T. and Lockwitz, S. and Loginov, A. and Lucchesi, D. and Lueck, J. and Lujan, P. and Lukens, P. and Lungu, G. and Lys, J. and Lysak, R. and Madrak, R. and Maeshima, K. and Maestro, P. and Malik, S. and Manca, G. and Manousakis-Katsikakis, A. and Margaroli, F. and Marino, C. and Martínez, M. and Mastrandrea, P. and Matera, K. and Mattson, M.E. and Mazzacane, A. and Mazzanti, P. and McFarland, K.S. and McIntyre, P. and McNulty, R. and Mehta, A. and Mehtala, P. and Mesropian, C. and Miao, T. and Mietlicki, D. and Mitra, A. and Miyake, H. and Moed, S. and Moggi, N. and Mondragon, M.N. and Moon, C.S. and Moore, R. and Morello, M.J. and Morlock, J. and Movilla Fernandez, P. and Mukherjee, A. and Muller, Th. and Murat, P. and Mussini, M. and Nachtman, J. and Nagai, Y. and Naganoma, J. and Nakano, I. and Napier, A. and Nett, J. and Neu, C. and Neubauer, M.S. and Nielsen, J. and Nodulman, L. and Noh, S.Y. and Norniella, O. and Oakes, L. and Oh, S.H. and Oh, Y.D. and Oksuzian, I. and Okusawa, T. and Orava, R. and Ortolan, L. and Pagan Griso, S. and Pagliarone, C. and Palencia, E. and Papadimitriou, V. and Paramonov, A.A. and Patrick, J. and Pauletta, G. and Paulini, M. and Paus, C. and Pellett, D.E. and Penzo, A. and Phillips, T.J. and Piacentino, G. and Pianori, E. and Pilot, J. and Pitts, K. and Plager, C. and Pondrom, L. and Poprocki, S. and Potamianos, K. and Prokoshin, F. and Pranko, A. and Ptohos, F. and Punzi, G. and Rahaman, A. and Ramakrishnan, V. and Ranjan, N. and Redondo, I. and Renton, P. and Rescigno, M. and Riddick, T. and Rimondi, F. and Ristori, L. and Robson, A. and Rodrigo, T. and Rodriguez, T. and Rogers, E. and Rolli, S. and Roser, R. and Ruffini, F. and Ruiz, A. and Russ, J. and Rusu, V. and Safonov, A. and Sakumoto, W.K. and Sakurai, Y. and Santi, L. and Sato, K. and Saveliev, V. and Savoy-Navarro, A. and Schlabach, P. and Schmidt, A. and Schmidt, E.E. and Schwarz, T. and Scodellaro, L. and Scribano, A. and Scuri, F. and Seidel, S. and Seiya, Y. and Semenov, A. and Sforza, F. and Shalhout, S.Z. and Shears, T. and Shepard, P.F. and Shimojima, M. and Shochet, M. and Shreyber-Tecker, I. and Simonenko, A. and Sinervo, P. and Sliwa, K. and Smith, J.R. and Snider, F.D. and Soha, A. and Sorin, V. and Song, H. and Squillacioti, P. and Stancari, M. and Denis, R.St. and Stelzer, B. and Stelzer-Chilton, O. and Stentz, D. and Strologas, J. and Strycker, G.L. and Sudo, Y. and Sukhanov, A. and Suslov, I. and Takemasa, K. and Takeuchi, Y. and Tang, J. and Tecchio, M. and Teng, P.K. and Thom, J. and Thome, J. and Thompson, G.A. and Thomson, E. and Toback, D. and Tokar, S. and Tollefson, K. and Tomura, T. and Tonelli, D. and Torre, S. and Torretta, D. and Totaro, P. and Trovato, M. and Ukegawa, F. and Uozumi, S. and Varganov, A. and Vázquez, F. and Velev, G. and Vellidis, C. and Vidal, M. and Vila, I. and Vilar, R. and Vizán, J. and Vogel, M. and Volpi, G. and Wagner, P. and Wagner, R.L. and Wakisaka, T. and Wallny, R. and Wang, S.M. and Warburton, A. and Waters, D. and Wester, W.C., III and Whiteson, D. and Wicklund, A.B. and Wicklund, E. and Wilbur, S. and Wick, F. and Williams, H.H. and Wilson, J.S. and Wilson, P. and Winer, B.L. and Wittich, P. and Wolbers, S. and Wolfe, H. and Wright, T. and Wu, X. and Wu, Z. and Yamamoto, K. and Yamato, D. and Yang, T. and Yang, U.K. and Yang, Y.C. and Yao, W.-M. and Yeh, G.P. and Yi, K. and Yoh, J. and Yorita, K. and Yoshida, T. and Yu, G.B. and Yu, I. and Yu, S.S. and Yun, J.C. and Zanetti, A. and Zeng, Y. and Zhou, C. and Zucchelli, S. and CDF Collaboration",
    journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
    year = "2013",
    volume = "722",
    number = "1-3",
    pages = "48-54",
    publisher = "Elsevier B.V.",
    doi = "10.1016/j.physletb.2013.03.032",
    abstract = "We present a measurement of the W-boson polarization in top-quark decays in tt- events with decays to dilepton final states using data corresponding to 5.1 fb-1 of integrated luminosity in pp- collisions collected by the CDF II detector at the Tevatron. Assuming a top-quark mass of 172.5 GeV/c2, a simultaneous measurement of the fractions of longitudinal ( f0) and right-handed ( f+) W-bosons yields the results f0 = 0.70-0.17 +0.18 (stat) ± 0.06(syst) and f+ =-0.09 ± 0.09(stat) ± 0.03(syst). Combining this measurement with our previous measurement based on single-lepton final states, we obtain f0 = 0.84 ± 0.09(stat) ± 0.05(syst) and f+ =-0.16 ± 0.05(stat) ± 0.04(syst). The results are consistent with the standard model expectation. © 2013 Elsevier B.V. All rights reserved."
}