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Probing the nature of and in the isospin violating process
Xiao-Gang Wu, Christoph Hanhart, Qian Wang +1
The isospin violation process is studied assuming that is a hadronic molecule. In association with the production of the $Z_c…
Meson loop singularity, exotic states' productions and decays near threshold
Qian Wang, Christoph Hanhart, Qiang Zhao
We investigate in detail the "triangle singularity" regions of meson loops where the corresponding intermediate mesons are nearly-on-shell and have relatively small momenta, and th…
as the first -wave open charm vector molecular state?
Martin Cleven, Qian Wang, Feng-Kun Guo +3
Since its first observation in 2005, the vector charmonium has turned out to be one of the prime candidates for an exotic state in the charmonium spectrum. It was recentl…
Y(4260): hadronic molecule versus hadro-charmonium interpretation
Qian Wang, Martin Cleven, Feng-Kun Guo +4
In this paper we confront both the hadronic molecule and the hadro-charmonium interpretations of the $\y$ with the experimental data currently available. We conclude that the data…
Systematic study of the singularity mechanism in heavy quarkonium decays
Qian Wang, Christoph Hanhart, Qiang Zhao
We investigate in detail the role of heavy meson loops in the transition from sources to candidates for QCD "exotics", such as , and $Z_b'(1…
Production of the X(3872) in charmonia radiative decays
Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner +2
We discuss the possibilities of producing the X(3872), which is assumed to be a D \bar D^* bound state, in radiative decays of charmonia. We argue that the ideal energy regions to…