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The role of spin-flipping terms in hadronic transitions of
Jorge Segovia, Francisco Fernandez, David R. Entem
Recent experimental data on the and processes seem to contradict the naive expectation that hadronic transitions with spin-flipping terms sho…
Dominant contributions to the nucleon-nucleon interaction at sixth order of chiral perturbation theory
D. R. Entem, N. Kaiser, R. Machleidt +1
We present the dominant two- and three-pion-exchange contributions to the nucleon-nucleon interaction at sixth order (next-to-next-to-next-to-next-to-next-to-leading order, N5LO) o…
Charmed-strange Meson Spectrum: Old and New Problems
Jorge Segovia, David R. Entem, Francisco Fernandez
The LHCb Collaboration has recently reported the observation for the first time of a spin- resonance in the heavy quark sector. They have shown that the struc…
Puzzles in quarkonium hadronic transitions with two pion emission
F. Fernandez, J. Segovia, P. G. Ortega +1
The anomalously large rates of some hadronic transitions from quarkonium are studied using QCD multipole expansion (QCDME) in the framework of a constituent quark model which has b…