@Article{ATLASCollaborationAad_etal2015, author="ATLAS Collaboration (Aad, G. et al and Cabrera Urban, S. and Castillo Gimenez, V. and Costa, M. J. and Ferrer, A. and Fiorini, L. and Fuster, J. and Garcia, C. and Garcia Navarro, J. E. and Gonzalez de la Hoz, S. and Hernandez Jimenez, Y. and Higon-Rodriguez, E. and Irles Quiles, A. and Kaci, M. and King, M. and Lacasta, C. and Lacuesta, V. R. and Marti-Garcia, S. and Mitsou, V. A. and Moles-Valls, R. and Oliver Garcia, E. and Pedraza Lopez, S. and Perez Garcia-Esta{\~A}{\textpm}, M. T. and Romero Adam, E. and Ros, E. and Salt, J. and Sanchez Martinez, V. and Soldevila, U. and Sanchez, J. and Torro Pastor, E. and Valero, A. and Valladolid Gallego, E. and Valls Ferrer, J. A. and Vos, M.", title="Search for the X-b and other hidden-beauty states in the pi(+)pi(-)gamma(1S) channel at ATLAS", journal="Physics Letters B", year="2015", publisher="Elsevier Science Bv", volume="740", pages="199--217", abstract="This Letter presents a search for a hidden-beauty counterpart of the X(3872) in the mass ranges of 10.05-10.31 GeV and 10.40-11.00 GeV, in the channel X-b -> pi(+)pi(-)gamma(1S)(-> mu(+)mu(-)), using 16.2 fb(-1) of root s = 8 TeV pp collision data collected by the ATLAS detector at the LHC. No evidence for new narrow states is found, and upper limits are set on the product of the Xb cross section and branching fraction, relative to those of the gamma(25), at the 95{\%} confidence level using the CLs approach. These limits range from 0.8{\%} to 4.0{\%}, depending on mass. For masses above 10.1 GeV, the expected upper limits from this analysis are the most restrictive to date. Searches for production of the gamma(1(3)D(J)), gamma(10860), and gamma(11 020) states also reveal no significant signals.", optnote="WOS:000347046200028", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=2097), last updated on Thu, 19 Feb 2015 11:09:22 +0000", issn="0370-2693", doi="10.1016/j.physletb.2014.11.055", opturl="http://arxiv.org/abs/1410.4409", opturl="https://doi.org/10.1016/j.physletb.2014.11.055", archivePrefix="arXiv", eprint="1410.4409", language="English" }