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| 題名: | Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV |
| 作者: | 林宗泰;Suarez Gonzalez, J.;Bansal, S.;Cornelis, T.;De Wolf, E. A.;Van Spilbeeck, A.;Daci, N.;Fonseca De Souza, S.;Stoykova, S.;Brigljevic, V.;Finger, M.;Kinnunen, R.;Tuuva, T.;Gras, P.;Carrillo Montoya, C. A.;Chierici, R.;Fan, J.;Ille, B.;Perieanu, A.;Millet, P.;Dooling, S.;Leonard, J.;Ron, E.;Centis Vignali, M.;Sander, C.;Frensch, F.;Topsis-Giotis, I.;Flouris, G.;Foudas, C.;Hajdu, C.;Trocsanyi, Z. L.;Naimuddin, M.;Maggi, M.;Piccolo, D.;Zotto, P.;Salvini, P.;Tonelli, G.;Vernieri, C.;Hong, B.;Park, S. K.;Yu, I.;Olszewski, M.;Gavrilenko, M.;Golubev, N.;Andreev, V.;Dudko, L.;Kalinin, A.;Delgado Peris, A.;Gonzalez Lopez, O.;Missiroli, M.;Calderon, A.;Marco, R.;Piedra Gomez, J.;Benhabib, L.;Bianchi, G.;Bocci, A.;Bondu, O.;Harris, P.;Musella, P.;Veres, G. I.;Wollny, H.;Chen, P. H.;Kenzie, M.;Magnan, A.-M.;Henderson, C.;Bhattacharya, S.;Branson, J. G.;Cittolin, S.;Kelley, R.;Vartak, A.;Gouskos, L.;Bunn, J.;Newman, H. B.;Wilkinson, R.;Nauenberg, U.;Thom, J.;Wittich, P.;Freeman, J.;Harris, R. M.;Musienko, Y.;Sharma, S.;Kypreos, T.;Rinkevicius, A.;Sperka, D.;Yelton, J.;Hagopian, V.;Clarida, W.;Blumenfeld, B.;Mans, J.;Acosta, J. G.;Avdeeva, E.;Kubik, A.;Odell, N.;Smith, G.;Ecklund, K. M.;Li, W.;Garcia-Bellido, A.;Arora, S.;Thomassen, P.;Montalvo, R.;Friis, E. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | Classical and Quantum Gravitation;Elementary Particles;Physics;Physics and Astronomy;Quantum Field Theories;Quantum Field Theory;Quantum Physics;Regular Article - Experimental Physics;Relativity Theory;String Theory |
| 日期: | 2014-01-01 |
| 上傳時間: | 2026-04-23 13:54:19 (UTC+8) |
| 出版者: | Berlin/Heidelberg: Springer Berlin Heidelberg |
| 摘要: | 摘要： A bstract A search is presented for standard model (SM) production of four top quarks t t ¯ t t ¯ in pp collisions in the lepton + jets channel. The data correspond to an integrated luminosity of 19.6 fb −1 recorded at a centre-of-mass energy of 8 TeV with the CMS detector at the CERN LHC. The expected cross section for SM t t ¯ t t ¯ production is σ t t ¯ t t ¯ S M ≈ 1 f b . A combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal and large background. The data are consistent with expectations of the SM, and an upper limit of 32 fb is set at a 95% confidence level on the cross section for producing four top quarks in the SM, where a limit of 32 ± 17 fb is expected.
其他題名： J. High Energ. Phys
出版者： Berlin/Heidelberg: Springer Berlin Heidelberg
出版日期： 2014-11-27
出處： The journal of high energy physics, 2014-11, Vol.2014 (11)
資源來源： ProQuest Open Access Content Collection
版權： The Author(s) 2014
識別號： EISSN: 1029-8479
識別號： DOI: 10.1007/JHEP11(2014)154 |
| 顯示於類別: | [物理學系] 期刊論文
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