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| 題名: | Measurement of spin correlations in tt‾ production using the matrix element method in the muon+jets final state in pp collisions at √s=8 TeV |
| 作者: | 林宗泰;Sirunyan, A.M.;Hartl, C.;Jeitler, M.;Knutsson, A.;Abu Zeid, S.;Van Driessche, W.;Bondu, O.;Quertenmont, L.;Belchior Batista Das Chagas, E.;Carvalho, W.;Tao, J.;Antunovic, Z.;Eerola, P.;Tuovinen, E.;Chanon, N.;Fay, J.;Kiesel, M.K.;Raupach, F.;Padeken, K.;Teyssier, D.;Asin, I.;Costanza, F.;Leonard, J.;Heindl, S.M.;Kornmayer, A.;Saoulidou, N.;Hajdu, C.;Sahoo, N.;Bhardwaj, A.;Sharma, V.;Dey, S.;Chudasama, R.;Ciulli, V.;Meschini, M.;Primavera, F.;Tosi, S.;Lista, L.;Benato, L.;Barone, L.;Rahatlou, S.;Argiro, S.;Mariotti, C.;Marone, M.;Go, Y.;Bunkowski, K.;Belyaev, A.;Colino, N.;Puerta Pelayo, J.;Romero, L.;Munoz Sanchez, F.J.;Cerminara, G.;Guida, R.;Janot, P.;Eller, P.;Pata, J.;Amsler, C.;Pinna, D.;Doan, T.H.;Jain, Sh;Srimanobhas, N.;Ozturk, S.;Lucas, C.;Bainbridge, R.;Lucas, R.;Lyons, L.;Rohlf, J.;Malberti, M.;Klein, D.;Pieri, M.;Yagil, A.;Xie, S.;Johnson, A.;Dittmer, S.;Patterson, J.R.;Albrow, M.;Gray, L.;Lammel, S.;Lipton, R.;Rakness, G.;Hewamanage, S.;Linn, S.;Ackert, A.;Dilsiz, K.;Khalil, S.;Kolberg, T.;Barbieri, R.;Goncharov, M.;Roland, C.;Varma, M.;Evans, A.;Ruckstuhl, N.;Turkewitz, J.;Ratnikov, F.;Alyari, M.;Kharchilava, A.;Jha, M.K.;Xie, W.;Ecklund, K.M.;Park, M.;Greene, S. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | CMS;Collisions;Consistency;Correlation;Correlation analysis;Elementary particles;LHC;Mathematical models;Matrix element method;Particle spin;Samarium;Spin;Top quark |
| 日期: | 2016-07-10 |
| 上傳時間: | 2026-04-23 12:11:56 (UTC+8) |
| 出版者: | Elsevier B.V |
| 摘要: | 摘要： The consistency of the spin correlation strength in top quark pair production with the standard model (SM) prediction is tested in the muon+jets final state. The events are selected from pp collisions, collected by the CMS detector, at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb−1. The data are compared with the expectation for the spin correlation predicted by the SM and with the expectation of no correlation. Using a template fit method, the fraction of events that show SM spin correlations is measured to be 0.72±0.08(stat)−0.13+0.15(syst), representing the most precise measurement of this quantity in the muon+jets final state to date.
出版者： Elsevier B.V
出版日期： 2016-07-10
出處： Physics letters. B, 2016-07, Vol.758 (C), p.321-346
資源來源： Elsevier ScienceDirect Journals Complete - Autoholdings
版權： 2016 The Author
識別號： ISSN: 0370-2693
識別號： EISSN: 1873-2445
識別號： DOI: 10.1016/j.physletb.2016.05.005 |
| 顯示於類別: | [物理學系] 期刊論文
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