Search for resonant top quark plus jet production in t(t)over-bar + jets events with the ATLAS detector in pp collisions at root s=7 TeV
Number of Authors: 2902
2012 (English)In: Physical Review D, ISSN 1550-7998, Vol. 86, no 9, 091103- p.Article in journal (Refereed) Published
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 (t)over-barq or tq, leading to a resonance within the t(t)over-bar + jets signature. The full 2011 ATLAS pp collision data set from the LHC (4.7 fb(-1)) is used to search for t(t)over-bar 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.
Place, publisher, year, edition, pages
2012. Vol. 86, no 9, 091103- p.
Proton-Proton Collisions, Root-S=7 Tev, Atlas Detector, Pp Collisions, Performance, Lhc
IdentifiersURN: urn:nbn:se:kth:diva-109513DOI: 10.1103/PhysRevD.86.091103ISI: 000311547400001ScopusID: 2-s2.0-84870401288OAI: oai:DiVA.org:kth-109513DiVA: diva2:582982
FunderSwedish Research Council
QC 20130107. Author count: 29022013-01-072013-01-07Bibliographically approved