Search for resonant top quark plus jet production in tt̅ +jets events with the ATLAS detector in pp collisions at √s=7 TeV
Author(s)Taylor, Frank E.
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This paper presents a search for a new heavy particle produced in association with a top or antitop quark. Two models in which the new heavy particle is a color singlet or a color triplet are considered, decaying, respectively, to t̅ q or tq, leading to a resonance within the tt̅ +jets signature. The full 2011 ATLAS pp collision data set from the LHC (4.7 fb-1) is used to search for tt̅ events produced in association with jets, in which one of the W bosons from the top quarks decays leptonically and the other decays hadronically. The data are consistent with the Standard Model expectation, and a new particle with mass below 430 Gev for both W′ boson and color triplet models is excluded at 95% confidence level, assuming unit right-handed coupling.
DepartmentMassachusetts Institute of Technology. Department of Physics
Physical Review D
American Physical Society
Aad, G. et al. “Search for Resonant Top Quark Plus Jet Production in Tt[over ¯]+jets Events with the ATLAS Detector in Pp Collisions at Sqrt[s]=7 TeV.” Physical Review D 86.9 (2012). © 2012 CERN, for the ATLAS Collaboration
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