dc.contributor.author CMS CollaborationAdair, A.Akgun, B.Boulahouache, C.Ecklund, K.M.Geurts, F.J.M.Li, W.Padley, B.P.Redjimi, R.Roberts, J.Zabel, J. 2015-07-14T18:08:57Z 2015-07-14T18:08:57Z 2013 CMS Collaboration, Adair, A., Akgun, B., et al.. "Measurement of the X(3872) production cross section via decays to J/ψπ + π − in pp collisions at √s=7 TeV." Journal of High Energy Physics, 2013, no. 154 (2013) http://dx.doi.org/10.1007/JHEP04(2013)154. https://hdl.handle.net/1911/80990 The production of the X(3872) is studied in pp collisions at √s=7 TeV, using decays to J/ψπ + π −, where the J/ψ decays to two muons. The data were recorded by the CMS experiment and correspond to an integrated luminosity of 4.8 fb−1. The measurements are performed in a kinematic range in which the X(3872) candidates have a transverse momentum 10 < p T  < 50 GeV and rapidity |y| < 1.2. The ratio of the X(3872) and ψ(2S) cross sections times their branching fractions into J/ψπ + π − is measured as a function of p T. In addition, the fraction of X(3872) originating from B decays is determined. From these measurements the prompt X(3872) differential cross section times branching fraction as a function of p T is extracted. The π + π − mass spectrum of the J/ψπ + π − system in the X(3872) decays is also investigated. eng JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0 https://creativecommons.org/licenses/by/4.0/ Measurement of the X(3872) production cross section via decays to J/ψπ + π − in pp collisions at √s=7 TeV Journal article Journal of High Energy Physics Hadron-Hadron Scattering 2013 154 Springer Text http://dx.doi.org/10.1007/JHEP04(2013)154 publisher version
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