Could the near-threshold XYZ states be simply kinematic effects?
نویسندگان
چکیده
Feng-Kun Guo, Christoph Hanhart, Qian Wang, and Qiang Zhao Helmholtz-Institut für Strahlenund Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany Institut für Kernphysik and Institute for Advanced Simulation, Forschungszentrum Jülich, D–52425 Jülich, Germany Institute of High Energy Physics and Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, Beijing 100049, China (Received 25 November 2014; revised manuscript received 3 February 2015; published 27 March 2015)
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