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11 papers · 2 filters
Propagation of a massive spin-3/2 particle
Helmut Haberzettl
The propagation of an off-shell spin-3/2 baryon is investigated in a consistent framework using projections corresponding to one irreducible spin-3/2 and two irreducible spin-1/2 r…
Alternative evaluations of halos in nuclei
S. Karataglidis, P. J. Dortmans, K. Amos +1
Data for the scattering of 6He, 8He, 9Li, and 11Li from hydrogen are analyzed within a fully microscopic folding model of proton-nucleus scattering. Current data suggest that of th…
Problems with Extraction of the Nucleon to Delta(1232) Photonic Amplitudes
R. M. Davidson, Nimai C. Mukhopadhyay, M. S. Pierce +3
We investigate the model dependence and the importance of choice of database in extracting the {\it physical} nucleon-Delta(1232) electromagnetic transition amplitudes, of interest…
The weak strangeness production reaction in a one-boson-exchange model
A. Parreño, A. Ramos, N. G. Kelkar +1
The weak production of Lambdas in nucleon-nucleon scattering is studied in a meson-exchange framework. The weak transition operator for the reaction is identical to a…
Kaon photoproduction with form factors in a gauge-invariant approach
H. Haberzettl, C. Bennhold, T. Mart +1
The general gauge-invariant photoproduction formalism given by Haberzettl is applied to kaon photoproduction off the nucleon at the tree level, with form factors describing composi…
Vector Meson Photoproduction with an Effective Lagrangian in the Quark Model
Qiang Zhao, Zhenping Li, C. Bennhold
A quark model approach to the photoproduction of vector mesons off nucleons is proposed. Its starting point is an effective Lagrangian of the interaction between the vector meson a…