Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/107046

Title:	Search for standard model production of four top quarks in the lepton + jets channel in pp collisions at √s = 8 TeV
Authors:	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.
Contributors:	理學院物理學系
Keywords:	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
Date:	2014-01-01
Issue Date:	2026-04-23 13:54:19 (UTC+8)
Publisher:	Berlin/Heidelberg: Springer Berlin Heidelberg
Abstract:	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
Appears in Collections:	[Department of Physics] journal & Dissertation

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