Evidence for Z(c)(+/-)(3900) in semi-inclusive decays of b-flavored hadrons

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No. of bitstreams: 0 Previous issue date: 2018-09-28 Fermi Research Alliance, LLC Department of Energy (USA) National Science Foundation (USA) Alternative Energies and Atomic Energy Commission (France) National Center for Scientific Research/National Institute of Nuclear and Particle Physics (France) Ministry of Education and Science of the Russian Federation (Russia) National Research Center Kurchatov Institute of the Russian Federation (Russia) Russian Foundation for Basic Research (Russia) National Council for the Development of Science and Technology (Brazil) Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) Department of Atomic Energy (India) Department of Science and Technology (India) Administrative Department of Science, Technology and Innovation (Colombia) National Council of Science and Technology (Mexico) National Research Foundation of Korea (Korea) Foundation for Fundamental Research on Matter (Netherlands) Science and Technology Facilities Council (United Kingdom) Royal Society (United Kingdom) Ministry of Education, Youth and Sports (Czech Republic) Bundesministerium fur Bildung und Forschung (Federal Ministry of Education and Research) (Germany) Deutsche Forschungsgemeinschaft (German Research Foundation) (Germany) Science Foundation Ireland (Ireland) Swedish Research Council (Sweden) China Academy of Sciences (China) National Natural Science Foundation of China (China) Ministry of Education and Science of Ukraine (Ukraine) We present evidence for the exotic charged charmoniumlike state Z(c)(+/-)(3900) decaying to J/psi pi(+/-) in semi-inclusive weak decays of b-flavored hadrons. The signal is correlated with a parent J/psi pi(+)pi(-) system in the invariant-mass range 4.2-4.7 GeV that would include the exotic structure Y(4260). The study is based on 10.4 fb(-1) of p (p) over bar collision data collected by the D0 experiment at the Fermilab Tevatron collider. 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