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On the role of final-state interactions in Dalitz plot studies
Bastian Kubis, Franz Niecknig, Sebastian P. Schneider
The study of Dalitz plots of heavy-meson decays to multi-hadron final states has received intensified interest by the possibility to gain access to precision investigations of CP v…
Anomalous decays of eta' and eta into four pions
Feng-Kun Guo, Bastian Kubis, Andreas Wirzba
We calculate the branching ratios of the yet unmeasured eta' decays into four pions, based on a combination of chiral perturbation theory and vector-meson dominance. The decays eta…
The role of final-state interactions in Dalitz plot studies
Bastian Kubis
Dalitz plot studies for multi-hadron decays of heavy mesons are expected to become very important tools for precision investigations of CP violation. A thorough understanding of th…
Precision calculation of threshold pi^- d scattering, pi N scattering lengths, and the GMO sum rule
V. Baru, C. Hanhart, M. Hoferichter +3
We use chiral perturbation theory (ChPT) to calculate the scattering length with an accuracy of a few percent, including isospin-violating corrections both in the two- and…
Cusps in K --> 3pi decays: a theoretical framework
Juerg Gasser, Bastian Kubis, Akaki Rusetsky
Based on the analysis of 6.031*10^7 K+- --> pi0 pi0 pi+- decays, the NA48/2 collaboration has recently determined the S-wave pi-pi scattering lengths a_0-a_2 with high precision. I…