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Improving the Hadron Physics of Non-Standard-Model Decays: Example Bounds on R-parity Violation
J. T. Daub, H. K. Dreiner, C. Hanhart +2
Using the example of selected decays driven by R-parity-violating supersymmetric operators, we demonstrate how strong final-state interactions can be controlled quantitatively with…
Dispersive analysis of omega/phi --> 3pi decays and the omega/phi --> pi0 gamma* transition form factors
Sebastian P. Schneider, Bastian Kubis, Franz Niecknig
We present a dispersive analysis of the three-pion decays of the lightest isoscalar vector mesons. The framework allows for a consistent implementation of final-state interactions…
Roy-Steiner equations for pi N scattering
Christoph Ditsche, Martin Hoferichter, Bastian Kubis +1
Starting from hyperbolic dispersion relations for the invariant amplitudes of pion-nucleon scattering together with crossing symmetry and unitarity, one can derive a closed system…
Extracting the chiral anomaly from gamma pi --> pi pi
Martin Hoferichter, Bastian Kubis, Dimitrios Sakkas
We derive dispersive representations for the anomalous process gamma pi --> pi pi with the pi pi P-wave phase shift as input. We investigate how in this framework the chiral anomal…
MesonNet Workshop on Meson Transition Form Factors
E. Czerwinski, S. Eidelman, C. Hanhart +5
The mini-proceedings of the Workshop on Meson Transition Form Factors held in Cracow from May 29th to 30th, 2012 introduce the meson transition form factor project with special emp…
omega --> pi0 gamma* and phi --> pi0 gamma* Transition form factors in dispersion theory
Sebastian P. Schneider, Bastian Kubis, Franz Niecknig
We calculate the omega --> pi0 gamma* and phi --> pi0 gamma* electromagnetic transition form factors based on dispersion theory, relying solely on a previous dispersive analysis of…