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Exotic open and hidden charm states
Christoph Hanhart, Feng-Kun Guo, Ulf-G. Meißner
We discuss recent theoretical developments in the context of charmed exotics with special emphasis on hadronic molecules. Especially we discuss, how these could be identified from…
Charmed Exotics
G. Bali, A. Denig, S. I. Eidelman +5
These are the mini-proceedings of the CHARMEX workshop. The meeting focused on recent developments in charm spectroscopy, especially on the possible role of the states that do not…
Study of the , , and in the radiative decays
L. S. Geng, F. K. Guo, C. Hanhart +3
In this paper we present an approach to study the radiative decay modes of the into a photon and one of the tensor mesons , , as well as the scalar one…
Extraction of the light quark mass ratio from the decays psi' --> J/psi pi^0 (eta)
Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner
Light quark masses are important fundamental parameters of the Standard Model. The decays psi'-->J/psi pi^0 (eta) were widely used in determining the light quark mass ratio m_u/m_d…
Chiral Extrapolations of light resonances from dispersion relations and Chiral Perturbation Theory
Guillermo Ríos, Ángel Gómez Nicola, Christoph Hanhart +1
We review our recent study of the pion mass dependence of the rho and sigma resonances generated from one-loop SU(2) Chiral Perturbation Theory (ChPT) with the Inverse Amplitude Me…
Implications of heavy quark spin symmetry on heavy meson hadronic molecules
Feng-Kun Guo, Christoph Hanhart, Ulf-G. Meißner
In recent years, many heavy mesons and charmonia were observed which do not fit in the conventional quark model expectations. Some of them are proposed to be hadronic molecules. He…