The results of a search for pair production of a heavy, top-like quark, t', in the decay mode t't-'→bW+b-W-→bℓ+νb-ℓ-ν- are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0fb-1 in pp collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC. The observed number of events agrees with the expectation from standard model processes, and no evidence of t't-' production is found. Upper limits on the production cross section as a function of t' mass are presented, and t' masses below 557GeV/c2 are excluded at the 95% confidence level.

Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at √s = 7 TeV / 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., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 716:1(2012), pp. 103-121. [10.1016/j.physletb.2012.07.059]

Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at √s = 7 TeV

D. Creanza;N. De Filippis;G. Iaselli;G. Maggi;S. My;G. Pugliese;
2012

Abstract

The results of a search for pair production of a heavy, top-like quark, t', in the decay mode t't-'→bW+b-W-→bℓ+νb-ℓ-ν- are presented. The search is performed with a data sample corresponding to an integrated luminosity of 5.0fb-1 in pp collisions at a center-of-mass energy of 7 TeV, collected by the CMS experiment at the LHC. The observed number of events agrees with the expectation from standard model processes, and no evidence of t't-' production is found. Upper limits on the production cross section as a function of t' mass are presented, and t' masses below 557GeV/c2 are excluded at the 95% confidence level.
2012
Search for heavy, top-like quark pair production in the dilepton final state in pp collisions at √s = 7 TeV / 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., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 716:1(2012), pp. 103-121. [10.1016/j.physletb.2012.07.059]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/2720
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