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| 題名: | Search for supersymmetry in events with photons and low missing transverse energy in pp collisions at √s=7TeV |
| 作者: | 余欣珊;Chatrchyan, S.;Bansal, M.;Cornelis, T.;Walsh, S.;Giammanco, A.;Mercadante, P.G.;Asawatangtrakuldee, C.;Antunovic, Z.;Morovic, S.;Mousa, J.;Tuominiemi, J.;Nayak, A.;Chierici, R.;Schael, S.;Heidemann, C.;Flügge, G.;Kargoll, B.;Burgmeier, A.;Costanza, F.;Böser, C.;Sikler, F.;Ujvari, B.;Ahuja, S.;Banerjee, S.;Mazumdar, K.;Fahim, A.;Colafranceschi, S.;Musenich, R.;Tabarelli de Fatis, T.;Lista, L.;Bisello, D.;Dosselli, U.;Ronchese, P.;Torre, P.;Taroni, S.;Giassi, A.;Tenchini, R.;Son, T.;Choi, M.;Ryu, G.;Lee, J.;Juodagalvis, A.;Carrillo Moreno, S.;Morelos Pineda, A.;Popov, V.;Belyaev, A.;Klyukhin, V.;Mesyats, G.;Troshin, S.;Djordjevic, M.;Fernandez Bedoya, C.;Albajar, C.;Rodríguez-Marrero, A.Y.;Dobson, M.;Elliott-Peisert, A.;Gigi, D.;Janot, P.;Musella, P.;Orsini, L.;Rolandi, G.;Siegrist, P.;Veres, G.I.;Donegà, M.;Chang, Y.H.;Lei, Y.J.;Dumanoglu, I.;Hall, G.;Liu, H.;Sperka, D.;Speer, T.;Cline, D.;Hauser, J.;Plager, C.;Mangano, B.;Simon, S.;Yagil, A.;Smith, J.G.;Green, D.;Musienko, Y.;Spiegel, L.;Matchev, K.;Lebolo, L.M.;Gleyzer, S.V.;Hofman, D.J.;Onel, Y.;Bolognesi, S.;Stringer, R.;Boutemeur, M.;Rudolph, M.;Wood, D.;Kotov, K.;Lujan, P.;Raval, A.;Han, J.;Mesropian, C.;Somalwar, S.;Roe, J.;Akchurin, N.;Wood, J.;Pierro, G.A. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | CMS;Physics |
| 日期: | 2013-02-12 |
| 上傳時間: | 2026-04-23 13:56:51 (UTC+8) |
| 出版者: | United States: Elsevier B.V |
| 摘要: | 摘要： Many models of new physics, including versions of supersymmetry (SUSY), predict production of events with low missing transverse energy, electroweak gauge bosons, and many energetic final-state particles. The stealth SUSY model yields this signature while conserving R-parity by means of a new hidden sector in which SUSY is approximately conserved. The results of a general search for new physics, with no requirement on missing transverse energy, in events with two photons and four or more hadronic jets are reported. The study is based on a sample of proton–proton collisions at s=7 TeV corresponding to 4.96 fb−1 of integrated luminosity collected with the CMS detector in 2011. Based on good agreement between the data and the standard model expectation, the data are used to determine model-independent cross-section limits and a limit on the squark mass in the framework of stealth SUSY. With this first study of its kind, squark masses less than 1430 GeV are excluded at the 95% confidence level.
出版者： United States: Elsevier B.V
出版日期： 2013-02-12
出處： Physics Letters. Section B, 2013-02, Vol.719 (1-3), p.42-61
資源來源： Elsevier ScienceDirect Journals Complete
版權： 2012 CERN
識別號： ISSN: 0370-2693
識別號： EISSN: 1873-2445
識別號： DOI: 10.1016/j.physletb.2012.12.055 |
| 顯示於類別: | [物理學系] 期刊論文
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