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Rong, G
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Contact email: rongg@ihep.ac.cn
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Rong, G

Biography

Gang Rong,born in 1956. After graduation from the Chinese University of Science and Technology in 1980 he came to the Institute of High Energy of Physics. From 1993 to 1994 he worked in the University of California at Irvine for studies of Charm Meson production and decays. In 2000 he was promoted as a full professor and adviser of Ph.D. students. He lead several research groups for doing particle physics research projects supported by the National Natural Science Foundation of China and supported by the Ministry of Science and Technology of China. He also served as BES-III’s charm physics convener in 2008. He was honored of the National Natural Science Awards, the CAS Natural Science Awards and the Beijing Science & Technology Awards.
Achievement and Experience:
 
The most important questions in physics are the properties and the interactions of the three families of quarks and leptons. The focus of his research in high energy experimental particle physics for many years has been in the area of electroweak and strong interactions. After 1984, his main activity involves the BES-I, BES-II and BES-III experiments at the BEPC and BEPC-II colliders in Beijing. At these experiments various bound states of charm quarks and tau lepton are produced. The aim of his research groups at these experiments have been focusing on charm physics via weak decays of D and Ds mesons as well as focusing on production and decays of bound states of c quark and anti-c quark or multi-quark states. In these research area, he and his colleague discovered for the first time in the world that the particle lying above DD-bar threshold decay into non-DD-bar final states through the strong interaction:y(3770)àJ/y p+p- and found that (15+-5)% of y(3770) decay to non-DD-bar. These two discoveries overturned that the “particles above DD-bar threshold decay to DD-bar due to strong force with 100% branching fraction” and established that the particles lying above DD-bar threshold can transform into J/yp+p- final states due to strong interaction. These two discoveries inspire a lot of experimental physics from other experiment groups to search for non-DD-bar decays of particles lying above the DD-bar threshold by examining J/yp+p- final states, resulting in discoveries of a set of new kinds of particles such as X(3872), Y(4260), etc. In addition, they first observed the anomalous line-shape of cross sections for e+e àhadrons near 3.765 GeV. Furthermore, by systematic studies of D meson semileptonic decays, he and his colleague solved a long-standing puzzle in the world that “ the isospin conservation is not held in the exclusive D meson semileptonic decays”.

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