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5 papers · 2 filters
Theory Viewpoint on Extracting Nucleon Polarisabilities in Low-Energy Compton Scattering
Harald W. Griesshammer, Anatoly I. L'vov, Judith A. McGovern +3
During the workshop "Compton Scattering off Protons and Light Nuclei: pinning down the nucleon polarisabilities" (ECT*, Trento, Italy, 29 July -- 2 August 2013, http://www.ectstar.…
The proton-deuteron system in pionless EFT revisited
Sebastian König, Harald W. Grießhammer, H. -W. Hammer
We provide a detailed discussion of the low-energy proton-deuteron system in pionless effective field theory, considering both the spin-quartet and doublet S-wave channels. Extendi…
Pole structure from energy-dependent and single-energy fits to elastic scattering data
Alfred Švarc, Mirza Hadžimehmedović, Hedim Osmanović +2
The pole structure of the current GW/SAID partial-wave analysis of elastic scattering and production data is studied. Pole positions and residues are extracted from both…
Pole positions and residues from pion photoproduction using the Laurent+Pietarinen expansion method
Alfred Švarc, Mirza Hadžimehmedović, Hedim Osmanović +3
We have applied a new approach to determine the pole positions and residues from pion photoproduction multipoles. The method is based on a Laurent expansion of the partial wave T-m…
Photocouplings at the Pole from Pion Photoproduction
D. Rönchen, M. Döring, F. Huang +6
The reactions and are analyzed in a semi-phenomenological approach up to GeV. Fits to differential cross section and single and double polariza…