Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Omerović, R."'
Autor:
Osmanović, H., Hadžimehmedović, M., Omerović, R., Stahov, J., Kashevarov, V., Ostrick, M., Tiator, L., Švarc, A.
Publikováno v:
Phys. Rev. C 104, 034605 (2021)
Experimental data for pion photoproduction including differential cross sections and various polarization observables from four reaction channels, $\gamma p \to \pi^0 p$, $\gamma p \to \pi^+n$, $\gamma n \to \pi^- p$ and $\gamma n \to \pi^0 n$ from t
Externí odkaz:
http://arxiv.org/abs/2107.06513
Autor:
Osmanović, H., Hadžimehmedović, M., Omerović, R., Stahov, J., Gorchtein, M., Kashevarov, V., Nikonov, K., Ostrick, M., Tiator, L., Švarc, A.
Publikováno v:
Phys. Rev. C 100, 055203 (2019)
High precision data of the $\gamma p \to \pi^0 p$ reaction from its threshold up to $W=2$~GeV have been used in order to perform a single-energy partial wave analysis with minimal model dependence. Continuity in energy was achieved by imposing constr
Externí odkaz:
http://arxiv.org/abs/1908.05167
Autor:
Tiator, L., Gorchtein, M., Kashevarov, V. L., Nikonov, K., Ostrick, M., Hadzimehmedovic, M., Omerovic, R., Osmanovic, H., Stahov, J., Svarc, A.
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 background is described in a recently developed Regge-cut model, and for the
Externí odkaz:
http://arxiv.org/abs/1807.04525
Autor:
Švarc, A., Osmanović, H., Hadžimehmedović, M., Omerović, R., Stahov, J., Kashevarov, V., Nikonov, K., Ostrick, M., Tiator, L.
Publikováno v:
Phys. Rev. C 98, 045206 (2018)
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 strength [1]. All contemporary partial wave analyses (PWA) in $\eta$ p
Externí odkaz:
http://arxiv.org/abs/1807.02759
Autor:
Švarc, A., Wunderlich, Y., Osmanović, H., Hadžimehmedović, M., Omerović, R., Stahov, J., Kashevarov, V., Nikonov, K., Ostrick, M., Tiator, L., Workman, R.
Publikováno v:
Few-Body Systems (2018) 59:96
Unconstrained partial-wave amplitudes obtained at discrete energies from fits to complete sets of eight independent observables which are required to uniquely reconstruct reaction amplitudes do not vary smoothly with energy, and are in principle non-
Externí odkaz:
http://arxiv.org/abs/1806.05675
Autor:
Anisovich, A. V., Burkert, V., Hadžimehmedović, M., Ireland, D. G., Klempt, E., Nikonov, V. A., Omerović, R., Osmanović, H., Sarantsev, A. V., Stahov, J., Švarc, A., Thoma, U.
Data on the reaction $\gamma p\to K^+\Lambda$ from the CLAS experiments are used to derive the leading multipoles, $E_{0+}$, $M_{1-}$, $E_{1+}$, and $M_{1+}$, from the production threshold to 2180\,MeV in 24 slices of the invariant mass. The four mul
Externí odkaz:
http://arxiv.org/abs/1712.07549
Autor:
Anisovich, A. V., Burkert, V., Hadžimehmedović, M., Ireland, D. G., Klempt, E., Nikonov, V. A., Omerović, R., Sarantsev, A. V., Stahov, J., Švarc, A., Thoma, U.
The two reactions $\gamma p\to K^+\Lambda$ and $\pi^-p\to K^0\Lambda$ are analyzed to determine the leading photoproduction multipoles and the pion-induced partial wave amplitudes in slices of the invariant mass. The multipoles and the partial-wave a
Externí odkaz:
http://arxiv.org/abs/1712.07537
Autor:
Osmanović, H., Hadžimehmedović, M., Omerović, R., Stahov, J., Kashevarov, V., Nikonov, K., Ostrick, M., Tiator, L., Švarc, A.
Publikováno v:
Phys. Rev. C 97, 015207 (2018)
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 wave analyses of these reactions. Instead of using a constraint to theore
Externí odkaz:
http://arxiv.org/abs/1707.07891
Autor:
Švarc, A., Wunderlich, Y., Osmanović, H., Hadžimehmedović, M., Omerović, R., Stahov, J., Kashevarov, V., Nikonov, K., Ostrich, M., Tiator, L., Workman, R.
Publikováno v:
Phys. Rev. C 97, 054611 (2018)
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-unique. We demonstrate how this behavior can be ascribed to the continuum
Externí odkaz:
http://arxiv.org/abs/1706.03211
Autor:
Tiator, L., Döring, M., Workman, R. L., Hadžimehmedović, M., Osmanović, H., Omerović, R., Stahov, J., Švarc, A.
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 branching ratios are nowadays often quoted at the pole, and we generalize
Externí odkaz:
http://arxiv.org/abs/1606.00371