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W-boson polarization measurement in the t(t)over-bar dilepton channel using the CDF II detector
- Authors
- Lueck, J[Lueck, J.]; Aaltonen, T[Aaltonen, T.]; Lujan, P[Lujan, P.]; Gonzalez, BA[Alvarez Gonzalez, B.]; Lukens, P[Lukens, P.]; Amerio, S[Amerio, S.]; Lungu, G[Lungu, G.]; Amidei, D[Amidei, D.]; Lys, J[Lys, J.]; Anastassov, A[Anastassov, A.]; Lysak, R[Lysak, R.]; Annovi, A[Annovi, A.]; Madrak, R[Madrak, R.]; Antos, J[Antos, J.]; Maeshima, K[Maeshima, K.]; Apollinari, G[Apollinari, G.]; Maestro, P[Maestro, P.]; Appel, JA[Appel, J. A.]; Malik, S[Malik, S.]; Arisawa, T[Arisawa, T.]; Manca, G[Manca, G.]; Artikov, A[Artikov, A.]; Manousakis-Katsikakis, A[Manousakis-Katsikakis, A.]; Asaadi, J[Asaadi, J.]; Margaroli, F[Margaroli, F.]; Ashmanskas, W[Ashmanskas, W.]; Marino, C[Marino, C.]; Auerbach, B[Auerbach, B.]; Martinez, M[Martinez, M.]; Aurisano, A[Aurisano, A.]; Mastrandrea, P[Mastrandrea, P.]; Azfar, R[Azfar, R.]; Matera, K[Matera, K.]; Badgett, W[Badgett, W.]; Mattson, ME[Mattson, M. E.]; Bae, T[Bae, T.]; Mazzacane, A[Mazzacane, A.]; Barbaro-Galtieri, A[Barbaro-Galtieri, A.]; Mazzanti, R[Mazzanti, R.]; Barnes, VE[Barnes, V. E.]; McFarland, KS[McFarland, K. S.]; Barnett, BA[Barnett, B. A.]; McIntyre, P[McIntyre, P.]; Barria, P[Barria, P.]; McNulty, R[McNulty, R.]; Bartos, P[Bartos, P.]; Mehta, A[Mehta, A.]; Bauce, M[Bauce, M.]; Mehtala, P[Mehtala, P.]; Bedeschi, F[Bedeschi, F.]; Mesropian, C[Mesropian, C.]; Behari, S[Behari, S.]; Miao, T[Miao, T.]; Bellettini, G[Bellettini, G.]; Mietlicki, D[Mietlicki, D.]; Bellinger, J[Bellinger, J.]; Mitra, A[Mitra, A.]; Benjamin, D[Benjamin, D.]; Miyake, H[Miyake, H.]; Beretvas, A[Beretvas, A.]; Moed, S[Moed, S.]; Bhatti, A[Bhatti, A.]; Moggi, N[Moggi, N.]; Bisello, D[Bisello, D.]; Mondragon, MN[Mondragon, M. N.]; Bizjak, I[Bizjak, I.]; Moon, CS[Moon, C. S.]; Bland, KR[Bland, K. R.]; Moore, R[Moore, R.]; Blumenfeld, B[Blumenfeld, B.]; Morello, MJ[Morello, M. J.]; Bocci, A[Bocci, A.]; Morlock, J[Morlock, J.]; Bodek, A[Bodek, A.]; Fernandez, PM[Movilla Fernandez, P.]; Bortoletto, D[Bortoletto, D.]; Mukherjee, A[Mukherjee, A.]; Boudreau, J[Boudreau, J.]; Muller, T[Muller, Th.]; Boveia, A[Boveia, A.]; Murat, P[Murat, P.]; Brigliadori, L[Brigliadori, L.]; Mussini, M[Mussini, M.]; Bromberg, C[Bromberg, C.]; Nachtman, J[Nachtman, J.]; Brucken, E[Brucken, E.]; Nagai, Y[Nagai, Y.]; Budagov, J[Budagov, J.]; Naganoma, J[Naganoma, J.]; Budd, HS[Budd, H. S.]; Nakano, I[Nakano, I.]; Burkett, K[Burkett, K.]; Napier, A[Napier, A.]; Busetto, G[Busetto, G.]; Nett, J[Nett, J.]; Bussey, P[Bussey, P.]; Neu, C[Neu, C.]; Buzatu, A[Buzatu, A.]; Neubauer, MS[Neubauer, M. S.]; Calamba, A[Calamba, A.]; Nielsen, J[Nielsen, J.]; Calancha, C[Calancha, C.]; Nodulman, L[Nodulman, L.]; Camarda, S[Camarda, S.]; Noh, SY[Noh, S. Y.]; Campanelli, M[Campanelli, M.]; Norniella, O[Norniella, O.]; Campbell, M[Campbell, M.]; Oakes, L[Oakes, L.]; Canelli, F[Canelli, F.]; Oh, SH[Oh, S. H.]; Carls, B[Carls, B.]; Oh, YD[Oh, Y. D.]; Carlsmith, D[Carlsmith, D.]; Oksuzian, I[Oksuzian, I.]; Carosi, R[Carosi, R.]; Okusawa, T[Okusawa, T.]; Carrillo, S[Carrillo, S.]; Orava, R[Orava, R.]; Carron, S[Carron, S.]; Ortolan, L[Ortolan, L.]; Casal, B[Casal, B.]; Griso, SP[Griso, S. Pagan]; Casarsa, M[Casarsa, M.]; Pagliarone, C[Pagliarone, C.]; Castro, A[Castro, A.]; Palencia, E[Palencia, E.]; Catastini, P[Catastini, P.]; Papadimitriou, V[Papadimitriou, V.]; Cauz, D[Cauz, D.]; Paramonov, AA[Paramonov, A. A.]; Cavaliere, V[Cavaliere, V.]; Patrick, J[Patrick, J.]; Cavalli-Sforza, M[Cavalli-Sforza, M.]; Pauletta, G[Pauletta, G.]; Cerri, A[Cerri, A.]; Paulini, M[Paulini, M.]; Cerrito, L[Cerrito, L.]; Paus, C[Paus, C.]; Chen, YC[Chen, Y. C.]; Pellett, DE[Pellett, D. 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J.]; Redondo, I[Redondo, I.]; Crescioli, F[Crescioli, F.]; Renton, R[Renton, R.]; Cuevas, J[Cuevas, J.]; Rescigno, M[Rescigno, M.]; Culbertson, R[Culbertson, R.]; Riddick, T[Riddick, T.]; Dagenhart, D[Dagenhart, D.]; Rimondi, F[Rimondi, F.]; d'Ascenzo, N[d'Ascenzo, N.]; Ristori, L[Ristori, L.]; Datta, M[Datta, M.]; Robson, A[Robson, A.]; de Barbaro, R[de Barbaro, R.]; Rodrigo, T[Rodrigo, T.]; Dell'Orso, M[Dell'Orso, M.]; Rodriguez, T[Rodriguez, T.]; Demortier, L[Demortier, L.]; Rogers, E[Rogers, E.]; Deninno, M[Deninno, M.]; Rolli, S[Rolli, S.]; Devoto, E[Devoto, E.]; Roser, R[Roser, R.]; d'Errico, M[d'Errico, M.]; Ruffini, E[Ruffini, E.]; Di Canto, A[Di Canto, A.]; Ruiz, A[Ruiz, A.]; Di Ruzza, B[Di Ruzza, B.]; Russ, J[Russ, J.]; Dittmann, JR[Dittmann, J. R.]; Rusu, V[Rusu, V.]; D'Onofrio, M[D'Onofrio, M.]; Safonov, A[Safonov, A.]; Donati, S[Donati, S.]; Sakumoto, WK[Sakumoto, W. 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- Issue Date
- 13-May-2013
- Publisher
- ELSEVIER SCIENCE BV
- Citation
- PHYSICS LETTERS B, v.722, no.1-3, pp.48 - 54
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICS LETTERS B
- Volume
- 722
- Number
- 1-3
- Start Page
- 48
- End Page
- 54
- ISSN
- 0370-2693
- Abstract
- We present a measurement of the W-boson polarization in top-quark decays in t (t) over bar events with decays to dilepton final states using data corresponding to 5.1 fb(-1) of integrated luminosity in p (p) over bar collisions collected by the CDF II detector at the Tevatron. Assuming a top-quark mass of 172.5 GeV/c(2), a simultaneous measurement of the fractions of longitudinal (f(0)) and right-handed (f(+)) W-bosons yields the results f(0) = 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 f(0) = 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. (C) 2013 Elsevier B.V. All rights reserved.
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