Search for heavy long-lived charged particles with the ATLAS detector in pp collisions at s=7 TeV

Search for heavy long-lived charged particles with the ATLAS detector in pp collisions at s=7 TeV

A search for long-lived charged particles reaching the muon spectrometer is performed using a data sample of 37 pb−1 from pp collisions at s=7 TeV collected by the ATLAS detector at the LHC in 2010. No excess is observed above the estimated background. Stable τ˜ sleptons are excluded at 95% CL up to...

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Veröffentlicht in:Physics letters. B 2011-09, Vol.703 (4), p.428-446
Hauptverfasser: Aad, G., Abbott, B., Aderholz, M., Adye, T., Arabidze, G., Barillari, T., Barton, A.E., Batley, J.R., Battistin, M., Bednyakov, V.A., Behar Harpaz, S., Ben Ami, S., Bozhko, N.I., Carter, J.R., Cavalli, D., Daya, R.K., De Nooij, L., Della Pietra, M., Diaz, M.A., Evans, H., Fabre, C., Fanti, M., Fedorko, W., Feng, E.J., Filippas, A., Fratina, S., Geerts, D.A.A., Gianotti, F., Gilchriese, M., Goebel, M., Goldfarb, S., Gonidec, A., Gonzalez-Sevilla, S., Gratchev, V., Greenwood, Z.D., Hakobyan, H., Hassani, S., Hauser, R., Haywood, S.J., Heim, S., Hodgson, P., Holmgren, S.O., Ibbotson, M., Iengo, P., Jakobs, K., Kajomovitz, E., Kaushik, V., Komaragiri, J.R., Kononov, A.I., Kozanecki, W., Kupco, A., Kurashige, H., Landon, M.P.J., Lys, J., Martin, B., Mazur, M., McCubbin, N.A., McGlone, H., Mehdiyev, R., Miñano, M., Moles-Valls, R., Monk, J., Monzani, S., Myagkov, A.G., Odier, J., Pérez García-Estañ, M.T., Policicchio, A., Pralavorio, P., Raymond, M., Redlinger, G., Rodriguez, D., Romanov, V.M., Salvachua Ferrando, B.M., Sander, H.G., Schmitt, C., Schwemling, Ph, Sherman, D., Sisakyan, A.N., Snuverink, J., Sorbi, M., Spila, F., Stockton, M.C., Tanaka, Y., Teixeira Dias Castanheira, M., Tikhomirov, V.O., Troncon, C., Turlay, E., van Eldik, N., Viehhauser, G.H.A., Waller, P., Wang, H., Weng, Z., Will, J.Z., Wrona, B., Wu, Y., Xie, S., Xie, Y., Yoosoofmiya, R., Zhou, N., Zhu, J.
Format: Artikel
Sprache:eng
Schlagworte:
Exact sciences and technology
Long-lived particles
Nuclear physics
Physics
SUSY
The physics of elementary particles and fields
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Zusammenfassung:A search for long-lived charged particles reaching the muon spectrometer is performed using a data sample of 37 pb−1 from pp collisions at s=7 TeV collected by the ATLAS detector at the LHC in 2010. No excess is observed above the estimated background. Stable τ˜ sleptons are excluded at 95% CL up to a mass of 136 GeV, in GMSB models with N5=3, mmessenger=250 TeV, sign(μ)=1 and tanβ=5. Electroweak production of sleptons is excluded up to a mass of 110 GeV. Gluino R-hadrons in a generic interaction model are excluded up to masses of 530 GeV to 544 GeV depending on the fraction of R-hadrons produced as g˜-balls.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2011.08.042