@Article{LHCbCollaborationAaij_etal2018, author="LHCb Collaboration (Aaij, R. et al and Garcia Martin, L. M. and Henry, L. and Martinez-Vidal, F. and Oyanguren, A. and Remon Alepuz, C. and Ruiz Valls, P. and Ruiz Vidal, J. and Sanchez Mayordomo, C.", title="Search for excited B-c(+) states", journal="Journal of High Energy Physics", year="2018", publisher="Springer", volume="01", number="1", pages="138--18pp", optkeywords="B physics; Hadron-Hadron scattering (experiments); Spectroscopy", abstract="A search is performed in the invariant mass spectrum of the B-c(+)pi(+) pi(-) system for the excited B-c(+) states B-c (2(1)S(0)) + and B-c(2(3)S(1)) + using a data sample of p p collisions collected by the LHCb experiment at the centre- of- mass energy of root s = 8TeV, corresponding to an integrated luminosity of 2 fb(-1). No evidence is seen for either state. Upper limits on the ratios of the production cross- sections of the Bc (2(1)S(0)) + and B-c(2(3)S(1)) + states times the branching fractions of Bc (2(1)S(0))(+) -> B-c(+)pi(+) pi(-) and B-c (2(3) S-1)(+) -> B-c*(+)pi(+) pi(-) over the production cross- section of the B-c(+) state are given as a function of their masses. They are found to be between 0.02 and 0.14 at 95{\%} con fi dence level for B-c (2(1)S(0)) + and B-c (2(3)S(1)) + in the mass ranges [6830; 6890] MeV/c(2) and [6795; 6890] MeV/c(2), respectively.", optnote="WOS:000424644300001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3485), last updated on Wed, 21 Feb 2018 08:48:34 +0000", issn="1029-8479", doi="10.1007/JHEP01(2018)138", opturl="http://arxiv.org/abs/1712.04094", opturl="https://doi.org/10.1007/JHEP01(2018)138", archivePrefix="arXiv", eprint="1712.04094", language="English" }