Search for Z′ resonances decaying to t¯t in dilepton+jets final states in pp collisions at √s=7 TeV
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2013-04
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Journal Article
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Abstract
A search for resonances decaying to top quark-antiquark pairs is performed using a dilepton+jets data sample recorded by the CMS experiment at the LHC in pp collisions at √s=7 TeV corresponding to an integrated luminosity of 5.0 fb−1. No significant deviations from the standard model background are observed. Upper limits are presented for the production cross section times branching fraction of top quark-antiquark resonances for masses from 750 to 3000 GeV. In particular, the existence of a leptophobic topcolor particle Z′ is excluded at the 95% confidence level for resonance masses MZ′<1.3 TeV for ΓZ′=0.012MZ′, and M<1.9 TeV for ΓZ′=0.10MZ′.
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published
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87 (7)
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72002
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American Physical Society
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03381 - Pauss, Felicitas (emeritus)
03593 - Dissertori, Günther / Dissertori, Günther
03904 - Wallny, Rainer / Wallny, Rainer
08803 - Grab, Christoph (Tit.Prof.)