Inclusive search for supersymmetry using razor variables in pp collisions at √s=7 TeV

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/105060

Title:	Inclusive search for supersymmetry using razor variables in pp collisions at √s=7 TeV
Authors:	余欣珊;Chatrchyan, S;Khachatryan, V;Sirunyan, A M;Tumasyan, A;Adam, W;Aguilo, E;Bergauer, T;Dragicevic, M;Erö, J;Fabjan, C;Friedl, M;Frühwirth, R;Ghete, V M;Hammer, J;Hörmann, N;Hrubec, J;Jeitler, M;Kiesenhofer, W;Knünz, V;Krammer, M;Krätschmer, I;Liko, D;Mikulec, I;Pernicka, M;Rahbaran, B;Rohringer, C;Rohringer, H;Schöfbeck, R;Strauss, J;Taurok, A;Waltenberger, W;Walzel, G;Widl, E;Wulz, C-E;Mossolov, V;Shumeiko, N;Suarez Gonzalez, J;Bansal, M;Bansal, S;Cornelis, T;De Wolf, E A;Janssen, X;Luyckx, S;Mucibello, L;Ochesanu, S;Roland, B;Rougny, R;Selvaggi, M;Staykova, Z;Van Haevermaet, H;Van Mechelen, P;Van Remortel, N;Van Spilbeeck, A;Blekman, F;Blyweert, S;D'Hondt, J;Gonzalez Suarez, R;Kalogeropoulos, A;Maes, M;Olbrechts, A;Van Doninck, W;Van Mulders, P;Van Onsem, G P;Villella, I;Clerbaux, B;De Lentdecker, G;Dero, V;Gay, A P R;Hreus, T;Léonard, A;Marage, P E;Mohammadi, A;Reis, T;Thomas, L;Vander Marcken, G;Vander Velde, C;Vanlaer, P;Wang, J;Adler, V;Beernaert, K;Cimmino, A;Costantini, S;Garcia, G;Grunewald, M;Klein, B;Lellouch, J;Marinov, A;McCartin, J;Ocampo Rios, A A;Ryckbosch, D;Strobbe, N;Thyssen, F;Tytgat, M;Verwilligen, P;Walsh, S;Yazgan, E;Zaganidis, N;Basegmez, S;Bruno, G;Castello, R
Contributors:	理學院物理學系
Date:	2013-08-23
Issue Date:	2026-04-23 12:05:50 (UTC+8)
Publisher:	United States
Abstract:	摘要： An inclusive search is presented for new heavy particle pairs produced in √s=7 TeV proton-proton collisions at the LHC using 4.7±0.1 fb(-1) of integrated luminosity. The selected events are analyzed in the 2D razor space of M(R), an event-by-event indicator of the heavy particle mass scale, and R, a dimensionless variable related to the missing transverse energy. The third-generation sector is probed using the event heavy-flavor content. The search is sensitive to generic supersymmetry models with minimal assumptions about the superpartner decay chains. No excess is observed in the number of events beyond that predicted by the standard model. Exclusion limits are derived in the CMSSM framework as well as for simplified models. Within the CMSSM parameter space considered, gluino masses up to 800 GeV and squark masses up to 1.35 TeV are excluded at 95% confidence level depending on the model parameters. The direct production of pairs of top or bottom squarks is excluded for masses as high as 400 GeV. 其他題名： Phys Rev Lett 出版者： United States 出版日期： 2013-08-23 出處： Physical review letters, 2013-08, Vol.111 (8), p.081802 資源來源： American Physical Society Journals 識別號： ISSN: 1079-7114 識別號： EISSN: 1079-7114 識別號： DOI: 10.1103/PhysRevLett.111.081802 識別號： PMID: 24010428
Appears in Collections:	[Department of Physics] journal & Dissertation

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