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76 papers
Electroweak Transitions of Hyperons and Charmed Baryons: Opportunities and Prospects
Patrik Adlarson, Constantia Alexandrou, Simone Bacchio +9
We present a phenomenology-driven overview of opportunities and outstanding challenges in baryon electroweak transitions, focusing on hyperon and charmed-baryon processes for which…
Getting a handle on correlation functions
Gernot Eichmann
The central objects in a quantum field theory are its n-point correlation functions and matrix elements. Their structure is determined by Lorentz invariance and leads to tensor dec…
Timelike form factor for the anomalous process
Angel S. Miramontes, Gernot Eichmann, Reinhard Alkofer
The form factor for the anomalous process is calculated in the isospin limit for several values of the light current-quark mass (i.e., the…
Functional methods for hadron spectroscopy
Gernot Eichmann, Christian S. Fischer, Joshua Hoffer
We summarize recent results for four-quark states with hidden and open flavor obtained from a four-quark Bethe-Salpeter/Faddeev-Yakubowsky equation. The approach dynamically predic…
Hadron physics with functional methods
Gernot Eichmann
We give a pedagogical introduction to hadron spectroscopy and structure studies using functional methods. We explain the basic features of Dyson-Schwinger, Bethe-Salpeter and Fadde…
Axial-vector and scalar contributions to hadronic light-by-light scattering
Gernot Eichmann, Christian S. Fischer, Tim Haeuser +1
We present results for single axial-vector and scalar meson pole contributions to the hadronic light-by-light scattering (HLbL) part of the muon's anomalous magnetic moment. In the…