TY - JOUR AU - ATLAS Collaboration (Aad, G. et al AU - Cabrera Urban, S. AU - Castillo Gimenez, V. AU - Costa, M. J. AU - Fassi, F. AU - Ferrer, A. AU - Fiorini, L. AU - Fuster, J. AU - Garcia, C. AU - Garcia Navarro, J. E. AU - Gonzalez de la Hoz, S. AU - Hernandez Jimenez, Y. AU - Higon-Rodriguez, E. AU - Irles Quiles, A. AU - Kaci, M. AU - Lacasta, C. AU - Lacuesta, V. R. AU - Marti-Garcia, S. AU - Miñano, M. AU - Mitsou, V. A. AU - Moles-Valls, R. AU - Moreno Llacer, M. AU - Oliver Garcia, E. AU - Pedraza Lopez, S. AU - Perez Garcia-Estañ, M. T. AU - Romero Adam, E. AU - Ros, E. AU - Salt, J. AU - Sanchez Martinez, V. AU - Solans, C. A. AU - Soldevila, U. AU - Sanchez, J. AU - Torro Pastor, E. AU - Valero, A. AU - Valladolid Gallego, E. AU - Valls Ferrer, J. A. AU - Villaplana Perez, M. AU - Vos, M. PY - 2012 DA - 2012// TI - 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 T2 - Phys. Rev. D JO - Physical Review D SP - 091103 EP - 20pp VL - 86 IS - 9 PB - Amer Physical Soc AB - 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. SN - 1550-7998 UR - http://arxiv.org/abs/1209.6593 UR - https://doi.org/10.1103/PhysRevD.86.091103 DO - 10.1103/PhysRevD.86.091103 LA - English N1 - WOS:000311547400001 ID - ATLASCollaborationAad_etal2012 ER -