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Complex Meson Spectroscopy
Eef van Beveren, Frieder Kleefeld, George Rupp
We do meson spectroscopy by studying the behavior of S-matrix poles in the complex-energy plane, as a function of the coupling strength for triplet-P-zero quark-pair creation. Ther…
From the Kappa via the Ds0*(2317) to the chi_c0: connecting light and heavy scalar mesons
Eef van Beveren, Joao E. G. N. Costa, Frieder Kleefeld +1
Pole trajectories connecting light and heavy scalar mesons, both broad resonances and quasi-bound states, are computed employing a simple coupled-channel model. Instead of varying…
Images in Christmas Balls
Eef van Beveren, Frieder Kleefeld, George Rupp
We describe light-reflection properties of spherically curved mirrors, like balls in the Christmas tree. In particular, we study the position of the image which is formed somewhere…