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14 papers · 2 filters
The proton magnetic radius: a new puzzle?
Yong-Hui Lin, Hans-Werner Hammer, Ulf-G. Meißner
We comment on the puzzling status of the proton magnetic radius determinations.
Nucleon resonance parameters from Roy-Steiner equations
Martin Hoferichter, Jacobo Ruiz de Elvira, Bastian Kubis +1
A reliable determination of the pole parameters and residues of nucleon resonances is notoriously challenging, given the required analytic continuation into the complex plane. We p…
Production of the as the spin-2 partner of in collisions
Pan-Pan Shi, Vadim Baru, Feng-Kun Guo +2
In 2021, the Belle collaboration reported the first observation of a new structure in the final state produced in the two-photon fusion process. In the hadronic molecule…
Pion axioproduction revisited
Cheng-Cheng Li, Tao-Ran Hu, Feng-Kun Guo +1
In this work, we extend the analysis of the pion axioproduction, , to include the impact of the Roper resonance together the previously studied r…
Dark matter scattering off He in chiral effective field theory
J. de Vries, C. Körber, A. Nogga +1
We study dark matter scattering off He and other light nuclei using chiral effective field theory. We consider scalar DM interactions and include both one- and two-nucleon sc…
Method for measuring the charge radii of charged hyperons from the time-like region
Yong-Hui Lin, Feng-Kun Guo, Ulf-G. Meißner
We propose a novel method for measuring the charge radii of charged stable hadrons, with which the first measurement of the charge radii of the and the is foreseen. The…