W-boson polarization measurement in the t t ¯ dilepton channel using the CDF II detector

Aaltonen, T; Álvarez González, B; Amerio, S; Amidei, D; Anastassov, A; Annovi, A; Antos, J; Apollinari, G; Appel, JA; Arisawa, T; Artikov, A; Asaadi, J; Ashmanskas, W; Auerbach, B; Aurisano, A; Azfar, F; Badgett, W; Bae, T; Barbaro-Galtieri, A; Barnes, VE; Barnett, BA; Barria, P; Bartos, P; Bauce, M; Bedeschi, F; Behari, S; Bellettini, G; Bellinger, J; Benjamin, D; Beretvas, A; Bhatti, A; Bisello, D; Bizjak, I; Bland, KR; Blumenfeld, B; Bocci, A; Bodek, A; Bortoletto, D; Boudreau, J; Boveia, A; Brigliadori, L; Bromberg, C; Brucken, E; Budagov, J; Budd, HS; Burkett, K; Busetto, G; Bussey, P; Buzatu, A; Calamba, A; Calancha, C; Camarda, S; Campanelli, M; Campbell, M; Canelli, F; Carls, B; Carlsmith, D; Carosi, R; Carrillo, S; Carron, S; Casal, B; Casarsa, M; Castro, A; Catastini, P; Cauz, D; Cavaliere, V; Cavalli-Sforza, M; Cerri, A; Cerrito, L; Chen, YC; Chertok, M; Chiarelli, G; Chlachidze, G; Chlebana, F; Cho, K; Chokheli, D; Chung, WH; Chung, YS; Ciocci, MA; Clark, A; Clarke, C; Compostella, G; Convery, ME; Conway, J; Corbo, M; Cordelli, M; Cox, CA; Cox, DJ; Crescioli, F; Cuevas, J; Culbertson, R; Dagenhart, D; dʼAscenzo, N; Datta, M; de Barbaro, P; DellʼOrso, M; Demortier, L; Deninno, M; Devoto, F; dʼErrico, M; Di Canto, A; Di Ruzza, B; Dittmann, JR; DʼOnofrio, M; Donati, S; Dong, P; Dorigo, M; Dorigo, T; Ebina, K; Elagin, A; Eppig, A; Erbacher, R; Errede, S; Ershaidat, N; Eusebi, R; Farrington, S; Feindt, M; Fernandez, JP; Field, R; Flanagan, G; Forrest, R; Frank, MJ; Franklin, M; Freeman, JC; Funakoshi, Y; Furic, I; Gallinaro, M; Garcia, JE; Garfinkel, AF; Garosi, P; Gerberich, H; Gerchtein, E; Giagu, S; Giakoumopoulou, V; Giannetti, P; Gibson, K; Ginsburg, CM; Giokaris, N; Giromini, P; Giurgiu, G; Glagolev, V; Glenzinski, D; Gold, M; Goldin, D; Goldschmidt, N; Golossanov, A; Gomez, G; Gomez-Ceballos, G; Goncharov, M; González, O; Gorelov, I; Goshaw, AT; Goulianos, K; Grinstein, S; Grosso-Pilcher, C; Group, RC; Guimaraes da Costa, J; Hahn, SR; Halkiadakis, E; Hamaguchi, A; Han, JY; Happacher, F; Hara, K; Hare, D; Hare, M; Harr, RF; Hatakeyama, K; Hays, C; Heck, M; Heinrich, J; Herndon, M; Hewamanage, S; Hocker, A; Hopkins, W; Horn, D; Hou, S; Hughes, RE; Hurwitz, M; Husemann, U; Hussain, N; Hussein, M; Huston, J; Introzzi, G; Iori, M; Ivanov, A; James, E; Jang, D; Jayatilaka, B; Jeon, EJ; Jindariani, S; Jones, M; Joo, KK; Jun, SY; Junk, TR; Kamon, T; Karchin, PE; Kasmi, A; Kato, Y; Ketchum, W; Keung, J; Khotilovich, V; Kilminster, B; Kim, DH; Kim, HS; Kim, JE; Kim, MJ; Kim, SB; Kim, SH; Kim, YK; Kim, YJ; Kimura, N; Kirby, M; Klimenko, S; Knoepfel, K; Kondo, K; Kong, DJ; Konigsberg, J; Kotwal, AV; Kreps, M; Kroll, J; Krop, D; Kruse, M; Krutelyov, V; Kuhr, T; Kurata, M; Kwang, S; Laasanen, AT; Lami, S; Lammel, S; Lancaster, M; Lander, RL; Lannon, K; Lath, A; Latino, G; LeCompte, T; Lee, E; Lee, HS; Lee, JS; Lee, SW; Leo, S; Leone, S; Lewis, JD; Limosani, A; Lin, C-J; Lindgren, M; Lipeles, E; Lister, A; Litvintsev, DO; Liu, C; Liu, H; Liu, Q; Liu, T; Lockwitz, S; Loginov, A; Lucchesi, D; Lueck, J; Lujan, P; Lukens, P; Lungu, G; Lys, J; Lysak, R; Madrak, R; Maeshima, K; Maestro, P; Malik, S; Manca, G; Manousakis-Katsikakis, A; Margaroli, F; Marino, C; Martínez, M; Mastrandrea, P; Matera, K; Mattson, ME; Mazzacane, A; Mazzanti, P; McFarland, KS; McIntyre, P; McNulty, R; Mehta, A; Mehtala, P; Mesropian, C; Miao, T; Mietlicki, D; Mitra, A; Miyake, H; Moed, S; Moggi, N; Mondragon, MN; Moon, CS; Moore, R; Morello, MJ; Morlock, J; Movilla Fernandez, P; Mukherjee, A; Muller, T; Murat, P; Mussini, M; Nachtman, J; Nagai, Y; Naganoma, J; Nakano, I; Napier, A; Nett, J; Neu, C; Neubauer, MS; Nielsen, J; Nodulman, L; Noh, SY; Norniella, O; Oakes, L; Oh, SH; Oh, YD; Oksuzian, I; Okusawa, T; Orava, R; Ortolan, L; Pagan Griso, S; Pagliarone, C; Palencia, E; Papadimitriou, V; Paramonov, AA; Patrick, J; Pauletta, G; Paulini, M; Paus, C; Pellett, DE; Penzo, A; Phillips, TJ; Piacentino, G; Pianori, E; Pilot, J; Pitts, K; Plager, C; Pondrom, L; Poprocki, S; Potamianos, K; Prokoshin, F; Pranko, A; Ptohos, F; Punzi, G; Rahaman, A; Ramakrishnan, V; Ranjan, N; Redondo, I; Renton, P; Rescigno, M; Riddick, T; Rimondi, F; Ristori, L; Robson, A; Rodrigo, T; Rodriguez, T; Rogers, E; Rolli, S; Roser, R; Ruffini, F; Ruiz, A; Russ, J; Rusu, V; Safonov, A; Sakumoto, WK; Sakurai, Y; Santi, L; Sato, K; Saveliev, V; Savoy-Navarro, A; Schlabach, P; Schmidt, A; Schmidt, EE; Schwarz, T; Scodellaro, L; Scribano, A; Scuri, F; Seidel, S; Seiya, Y; Semenov, A; Sforza, F; Shalhout, SZ; Shears, T; Shepard, PF; Shimojima, M; Shochet, M; Shreyber-Tecker, I; Simonenko, A; Sinervo, P; Sliwa, K; Smith, JR; Snider, FD; Soha, A; Sorin, V; Song, H; Squillacioti, P; Stancari, M; Denis, R; Stelzer, B; Stelzer-Chilton, O; Stentz, D; Strologas, J; Strycker, GL; Sudo, Y; Sukhanov, A; Suslov, I; Takemasa, K; Takeuchi, Y; Tang, J; Tecchio, M; Teng, PK; Thom, J; Thome, J; Thompson, GA; Thomson, E; Toback, D; Tokar, S; Tollefson, K; Tomura, T; Tonelli, D; Torre, S; Torretta, D; Totaro, P; Trovato, M; Ukegawa, F; Uozumi, S; Varganov, A; Vázquez, F; Velev, G; Vellidis, C; Vidal, M; Vila, I; Vilar, R; Vizán, J; Vogel, M; Volpi, G; Wagner, P; Wagner, RL; Wakisaka, T; Wallny, R; Wang, SM; Warburton, A; Waters, D; Wester, WC; Whiteson, D; Wicklund, AB; Wicklund, E; Wilbur, S; Wick, F; Williams, HH; Wilson, JS; Wilson, P; Winer, BL; Wittich, P; Wolbers, S; Wolfe, H; Wright, T; Wu, X; Wu, Z; Yamamoto, K; Yamato, D; Yang, T; Yang, UK; Yang, YC; Yao, W-M; Yeh, GP; Yi, K; Yoh, J; Yorita, K; Yoshida, T; Yu, GB; Yu, I; Yu, SS; Yun, JC; Zanetti, A; Zeng, Y; Zhou, C; Zucchelli, S

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Abstract

© 2013 Elsevier B.V. All rights reserved. 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.

Date issued

2013

URI

https://hdl.handle.net/1721.1/134227

Journal

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Publisher

Elsevier BV

Citation

Aaltonen, T., et al. "W-Boson Polarization Measurement in the T(T)over-Bar Dilepton Channel Using the Cdf Ii Detector." Physics Letters B 722 1-3 (2013): 48-54.

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