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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 strong neutron-proton mass difference from the charge symmetry breaking in pn-->d pi0
A. Filin, V. Baru, E. Epelbaum +4
We perform a complete calculation of charge symmetry breaking effects for the reaction pn -> d pi0 at leading order in chiral perturbation theory. A new leading-order operator is i…
p-Wave pion production from nucleon-nucleon collisions
V. Baru, E. Epelbaum, J. Haidenbauer +4
We investigate p-wave pion production in nucleon-nucleon collisions up to next-to-next-to-leading order in chiral effective field theory. In particular, we show that it is possible…
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…