Searches for new physics using the ttbar invariant mass distribution in pp collisions at sqrt(s)=8 TeV - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review Letters Year : 2013

Searches for new physics using the ttbar invariant mass distribution in pp collisions at sqrt(s)=8 TeV

S. Chatrchyan
  • Function : Author
Pierre Busson
R. Granier de Cassagnac
C. Mironov
P. Paganini
J.-L. Agram
C. Collard
E. Conte
P. van Hove
D. Contardo
M. Gouzevitch
M. Lethuillier
V. Sordini
P. Verdier

Abstract

Searches for anomalous top quark-antiquark production are presented, based on pp collisions at sqrt(s) = 8 TeV. The data, corresponding to an integrated luminosity of 19.7 inverse femtobarns, were collected with the CMS detector at the LHC. No excess of events above the yield expected from the standard model is observed. 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.

Dates and versions

in2p3-00860076 , version 1 (10-09-2013)

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Cite

S. Chatrchyan, M. Besançon, F. Couderc, M. Dejardin, D. Denegri, et al.. Searches for new physics using the ttbar invariant mass distribution in pp collisions at sqrt(s)=8 TeV. Physical Review Letters, 2013, 111, pp.211804. ⟨10.1103/PhysRevLett.111.211804⟩. ⟨in2p3-00860076⟩
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