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.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Bergauer, T.; Dragicevic, M.

Searches for new physics using the tt-bar invariant mass distribution in pp collisions at s√=8 TeV

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Issue Date

2013-11-22

Author

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.

Khachatryan, V.

Sirunyan, A. M.

Tumasyan, A.

Adam, W.

Bergauer, T.

Dragicevic, M.

Publisher

American Physical Society

Type

Article

Article Version

Scholarly/refereed, publisher version

Metadata

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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.

Description

This is the publisher's version, also available electronically from http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.111.211804.

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.

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