Search for supersymmetry in pp collisions at s=7 TeV in final states with missing transverse momentum and b-jets

Results are presented of a search for supersymmetric particles in events with large missing transverse momentum and at least one heavy flavour jet candidate in s=7 TeV proton–proton collisions. In a data sample corresponding to an integrated luminosity of 35 pb−1 recorded by the ATLAS experiment at...

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Veröffentlicht in:	Physics letters. B 2011-07, Vol.701 (4), p.398-416
Hauptverfasser:	Aad, G., Aderholz, M., Adye, T., Arabidze, G., Barillari, T., Barton, A.E., Batley, J.R., Bednyakov, V.A., Bracinik, J., Buszello, C.P., Cammin, J., Chekanov, S., Cranmer, K., Davidson, N., De, K., De Vivie De Regie, J.B., Demers, S., Di Micco, B., do Vale, M.A.B., Dopke, J., Dotti, A., Düren, M., Erdmann, J., Errede, S., Formica, A., Gaycken, G., Geerts, D.A.A., George, S., Glatzer, J., Glonti, G.L., Gross, E., Hanke, P., Harenberg, T., Harris, O.M., Harrison, K., Hartjes, F., Hauser, R., Henderson, R.C.W., Jia, J., Jiang, Y., Kawagoe, K., Khandanyan, H., König, A.C., Koffas, T., Kotov, S., Krieger, P., Kroll, J., Lebedev, A., Leggett, C., Levêque, J., Liu, C., Mackeprang, R., Magradze, E., Mann, A., Mapelli, A., Martyniuk, A.C., Marx, M., Masetti, L., Menot, C., Nash, M., Naumann, T., Nelson, S., Novakova, J., Pantea, D., Parodi, F., Piacquadio, G., Potter, C.T., Read, A.L., Rodriguez Garcia, Y., Romaniouk, A., Rossi, E., Rothberg, J., Sampsonidis, D., Savinov, V., Scheirich, D., Shatalov, P.B., Sloper, J., Sondericker, J., Soni, N., Stanecka, E., Su, D., Suhr, C., Suita, K., Szeless, B., Todorova-Nova, S., Touchard, F., Urrejola, P., Vannucci, F., Veneziano, S., Vincter, M.G., Viret, S., Vlachos, S., Vorobel, V., Wagner, W., Wicek, F., Wildt, M.A., Ybeles Smit, G.V., Zaidan, R., Zemla, A., Zendler, C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Exact sciences and technology Gluino LHC Nuclear physics Physics Sbottom Stop Supersymmetry The physics of elementary particles and fields
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Beschreibung
Zusammenfassung:	Results are presented of a search for supersymmetric particles in events with large missing transverse momentum and at least one heavy flavour jet candidate in s=7 TeV proton–proton collisions. In a data sample corresponding to an integrated luminosity of 35 pb−1 recorded by the ATLAS experiment at the Large Hadron Collider, no significant excess is observed with respect to the prediction for Standard Model processes. For R-parity conserving models in which sbottoms (stops) are the only squarks to appear in the gluino decay cascade, gluino masses below 590 GeV (520 GeV) are excluded at the 95% C.L. The results are also interpreted in an MSUGRA/CMSSM supersymmetry breaking scenario with tanβ=40 and in an SO(10) model framework.
ISSN:	0370-2693 1873-2445
DOI:	10.1016/j.physletb.2011.06.015