%0 Journal Article %T Search for single b*-quark production with the ATLAS detector at root s=7 TeV %A ATLAS Collaboration (Aad, G. et al %A Cabrera Urban, S. %A Castillo Gimenez, V. %A Costa, M. J. %A Fassi, F. %A Ferrer, A. %A Fiorini, L. %A Fuster, J. %A Garcia, C. %A Garcia Navarro, J. E. %A Gonzalez de la Hoz, S. %A Hernandez Jimenez, Y. %A Higon-Rodriguez, E. %A Irles Quiles, A. %A Kaci, M. %A Lacasta, C. %A Lacuesta, V. R. %A March, L. %A Marti-Garcia, S. %A Miñano, M. %A Mitsou, V. A. %A Moles-Valls, R. %A Moreno Llacer, M. %A Oliver Garcia, E. %A Pedraza Lopez, S. %A Perez Garcia-Estañ, M. T. %A Romero Adam, E. %A Ros, E. %A Salt, J. %A Sanchez Martinez, V. %A Solans, C. A. %A Soldevila, U. %A Sanchez, J. %A Torro Pastor, E. %A Valero, A. %A Valladolid Gallego, E. %A Valls Ferrer, J. A. %A Villaplana Perez, M. %A Vos, M. %J Physics Letters B %D 2013 %V 721 %N 4-5 %I Elsevier Science Bv %@ 0370-2693 %G English %F ATLASCollaborationAad_etal2013 %O WOS:000318055900001 %O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1421), last updated on Thu, 30 May 2013 12:31:28 +0000 %X The results of a search for an excited bottom-quark b* in pp collisions at root s = 7 TeV, using 4.7 fb(-1) of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b*-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton + jets final states, which are combined to set limits on b*-quark couplings for a range of b*-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b* couplings, b* quarks with masses less than 870 GeV are excluded at the 95% credibility level. %K ATLAS %K b* %K Single top-quark %K Excited quark %R 10.1016/j.physletb.2013.03.016 %U http://arxiv.org/abs/arXiv:1301.1583 %U https://doi.org/10.1016/j.physletb.2013.03.016 %P 171-189