Searches for supersymmetry using the M ^sub T2^ variable in hadronic events produced in pp collisions at 8 TeV

• Published in: The journal of high energy physics Vol. 2015; no. 5; p. 1
• Main Authors: Friedl, M, Hörmann, N, Liko, D, Van Mulders, P, Vanlaer, P, Costantini, S, Du Pree, T, Vidal Marono, M, De Jesus Damiao, D, Vilela Pereira, A, Dogra, S, Gregores, E M, Novaes, S F, Piperov, S, Chen, H S, Cheng, T, Mavromanolakis, G, Tiko, A, Kortelainen, M J, Faure, J L, Hamel De Monchenault, G, Hebbeker, T, Papacz, P, Choudhury, S, Gunnellini, P, Lutz, B, Salfeld-nebgen, J, Walsh, R, Görner, M, Haller, J, Schlieckau, E, Descroix, A, Hartmann, F, Geralis, T, Ujvari, B, Modak, A, Majumder, G, Sudhakar, K, Felcini, M, Guiducci, L, Primavera, F, Albergo, S, Giassi, A, Pedraza, I, Reucroft, S, Bluj, M, Olszewski, M, Varela, J, Moisenz, P, Pozdnyakov, I, Ekmedzic, M, Milosevic, J, Puerta Pelayo, J, Fernandez Menendez, J, Scodellaro, L, Bloch, P, Botta, C, D'alfonso, M, Dorney, B, Girone, M, Marrouche, J, Masetti, L, Martinez Ruiz Del Arbol, P, Lu, Y J, Ozturk, S, Gülmez, E, Lucas, C, Harper, S, Turner, M, Segala, M, Jandir, P, Macneill, I, Flowers, K, Incandela, J, Mirman, N, Nicolas Kaufman, G, Albrow, M, Elvira, V D, Marraffino, J M, Soha, A, Yumiceva, F, Bucinskaite, I, Kurt, P, Martin, C, Kellogg, R G, Goncharov, M, Kubota, Y, Snow, G R, Zhang, J, Brinson, J, Hughes, R, Mooney, M, Zuranski, A, Bortoletto, D, Demina, R, Castaneda Hernandez, A, Montalvo, R, Faulkner, J, Carlsmith, D, Sarangi, T
• Format: Journal Article
• Language: English
• Published: Heidelberg Springer Nature B.V 01-05-2015
• Subjects: High energy physics
• ISSN: 1029-8479
• DOI: 10.1007/JHEP05(2015)078

Abstract Searches for supersymmetry (SUSY) are performed using a sample of hadronic events produced in 8 TeV pp collisions at the CERN LHC. The searches are based on the M ^sub T2^ variable, which is a measure of the transverse momentum imbalance in an event. The data were collected with the CMS detector and correspond to an integrated luminosity of 19.5 fb^sup -1^. Two related searches are performed. The first is an inclusive search based on signal regions defined by the value of the M ^sub T2^ variable, the hadronic energy in the event, the jet multiplicity, and the number of jets identified as originating from bottom quarks. The second is a search for a mass peak corresponding to a Higgs boson decaying to a bottom quark-antiquark pair, where the Higgs boson is produced as a decay product of a SUSY particle. For both searches, the principal backgrounds are evaluated with data control samples. No significant excess over the expected number of background events is observed, and exclusion limits on various SUSY models are derived. [Figure not available: see fulltext.]