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Searches for new physics using the tt-bar invariant mass distribution in pp collisions at s√=8 TeV
Baringer, Philip S. Bean, Alice Benelli, Gabriele Kenny, R. P., III Murray, Michael J. Noonan, Danny Sanders, Stephen J. Stringer, Robert W. Wood, Jeffrey Scott Chatrchyan, S.
Baringer, Philip S.
Bean, Alice
Benelli, Gabriele
Kenny, R. P., III
Murray, Michael J.
Noonan, Danny
Sanders, Stephen J.
Stringer, Robert W.
Wood, Jeffrey Scott
Chatrchyan, S.
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Abstract
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(−1), were collected with the CMS detector at the LHC. The observed tt-bar 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.
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This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.111.211804.
Date
2013-11-22
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American Physical Society
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Citation
S. Chatrchyan et al. (CMS Collaboration). (2013). "Searches for new physics using the tt-bar invariant mass distribution in pp collisions at s√=8 TeV." Physical Review Letters, 111(21):211804. http://dx.doi.org/10.1103/PhysRevLett.111.211804.