46 citations · 398 across the 24 of their papers we have counts for
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Single-energy partial wave analysis for pion photoproduction with fixed-t analyticity
H. Osmanović, M. Hadžimehmedović, R. Omerović +5
Experimental data for pion photoproduction including differential cross sections and various polarization observables from four reaction channels, , , $γ…
Single-Energy Partial Wave Analysis for Photoproduction on Proton with Fixed- Analyticity Imposed
H. Osmanović, M. Hadžimehmedović, R. Omerović +7
High precision data of the reaction from its threshold up to ~GeV have been used in order to perform a single-energy partial wave analysis with minimal model de…
The role of angle dependent phase rotations of reaction amplitudes in photoproduction on protons
A. Švarc, H. Osmanović, M. Hadžimehmedović +6
It has recently been proven that the invariance of observables with respect to angle dependent phase rotations of reaction amplitudes mixes multipoles changing also their relative…
Eta and Etaprime Photoproduction on the Nucleon with the Isobar Model EtaMAID2018
L. Tiator, M. Gorchtein, V. L. Kashevarov +7
The isobar model EtaMAID has been updated with new and high precision data for eta and etaprime photoproduction on protons and neutrons from MAMI, ELSA, GRAAL and CLAS. The backgro…
From Experimental Data to Pole Parameters in a Direct Way (Angle Dependent Continuum Ambiguity and Laurent + Pietarinen Expansion)
A. Švarc, Y. Wunderlich, H. Osmanović +8
Unconstrained partial-wave amplitudes obtained at discrete energies from fits to complete sets of eight independent observables which are required to uniquely reconstruct reaction…
Fixed-t analyticity as a constraint in single energy partial wave analyses of meson photoproduction reactions
H. Osmanović, M. Hadžimehmedović, R. Omerović +6
Partial wave amplitudes of meson photoproduction reactions are an important source of information in baryon spectroscopy. We investigate a new approach in single-energy partial wav…
A connection between angular dependent phase ambiguities and the uniqueness of the partial wave decomposition
A. Švarc, Y. Wunderlich, H. Osmanović +8
Unconstrained partial-wave amplitudes obtained at discrete energies from fits to complete sets of experimental data may not vary smoothly with energy, and are in principle non-uniq…
Baryon transition form factors at the pole
L. Tiator, M. Döring, R. L. Workman +5
Electromagnetic resonance properties are uniquely defined at the pole and do not depend on the separation of the resonance from background or the decay channel. Photon-nucleon bran…
Generalization of the model-independent Laurent-Pietarinen single-channel pole-extraction formalism to multiple channels
Alfred Svarc, Mirza Hadzimehmedovic, Hedim Osmanovic +3
A method to extract resonance pole information from single-channel partial-wave amplitudes based on a Laurent (Mittag-Leffler) expansion and conformal mapping techniques has recent…
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…
Poles of Karlsruhe-Helsinki KH80 and KA84 solutions extracted by using Laurent+Pietarinen method
Alfred Svarc, Mirza Hadzimehmedovic, Rifat Omerovic +2
Poles of partial wave scattering matrices have also in hadron spectroscopy recently been established as a sole link between experiment and QCD theories and models [1-4]. We have, h…
A new method for extracting poles from single-channel data based on Laurent expansion of T-matrices with Pietarinen power series representing the non-singular part
Alfred Svarc, Mirza Hadzimehmedovic, Hedim Osmanovic +1
We present a new approach to quantifying pole parameters of single-channel processes based on Laurent expansion of partial wave T-matrices. Instead of guessing the analytical form…
Evaluation of the Pion-Nucleon Sigma Term from CHAOS Data
J. Stahov, H. Clement, G. J. Wagner
We have reanalyzed the scattering data at low energy in the Coulomb-nuclear interference region as measured by the CHAOS group at TRIUMF with the aim to determine the p…