Searches for new physics using the t[bar over t] invariant mass distribution in pp collisions at √s = 8  TeV

Searches for new physics using the t[bar over t] invariant mass distribution in pp collisions at √s = 8  TeV

Searches for anomalous top quark-antiquark production are presented, based on pp collisions at s√ = 8  TeV. The data, corresponding to an integrated luminosity of 19.7  fb[superscript −1], were collected with the CMS detector at the LHC. The observed t[bar over t] invariant mass spectrum is found to...

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Bibliographic Details
Main Authors: Apyan, Aram (Contributor), Bauer, Gerry P. (Contributor), Busza, Wit (Contributor), Cali, Ivan Amos (Contributor), Chan, M. (Contributor), Di Matteo, Leonardo (Contributor), Dutta, V. (Contributor), Gomez-Ceballos, Guillelmo (Contributor), Goncharov, Maxim (Contributor), Gulhan, Doga Can (Contributor), Kim, Y. (Contributor), Klute, Markus (Contributor), Lai, Yue Shi (Contributor), Levin, A. (Contributor), Luckey, P. David, Jr (Contributor), Ma, Teng (Contributor), Nahn, Steven (Contributor), Paus, Christoph M. E. (Contributor), Ralph, Duncan Kelley (Contributor), Roland, Christof E. (Contributor), Roland, Gunther M. (Contributor), Stephans, George S. F. (Contributor), Stockli, Fabian (Contributor), Sumorok, Konstanty C. (Contributor), Velicanu, Dragos Alexandru (Contributor), Wolf, R. (Contributor), Wyslouch, Boleslaw (Contributor), Yang, M. (Contributor), Yilmaz, Yetkin (Contributor), Yoon, A.S (Contributor), Zanetti, Marco (Contributor), Zhukova, Victoria (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), Massachusetts Institute of Technology. Laboratory for Nuclear Science (Contributor), Massachusetts Institute of Technology. School of Science (Contributor)
Format: Article
Language:English
Published: American Physical Society, 2014-02-18T14:13:09Z.
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Summary:Searches for anomalous top quark-antiquark production are presented, based on pp collisions at s√ = 8  TeV. The data, corresponding to an integrated luminosity of 19.7  fb[superscript −1], were collected with the CMS detector at the LHC. The observed t[bar over t] invariant mass spectrum is found to be compatible with the standard model prediction. Limits on the production cross section times branching fraction probe, for the first time, a region of parameter space for certain models of new physics not yet constrained by precision measurements.
United States. Dept. of Energy
National Science Foundation (U.S.)

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