Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Alfred Švarc"'
Autor:
Alfred Švarc, Mirza Hadžimehmedović, Hedim Osmanović, Jugoslav Stahov, Lothar Tiator, Ron L. Workman
Publikováno v:
Physics Letters B, Vol 755, Iss , Pp 452-455 (2016)
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 recently been developed. This method has been applied to a number of reactio
Externí odkaz:
https://doaj.org/article/fb38b2c2d56e4566b65d991785409e22
Publikováno v:
Physical Review C. 102
Amplitude- and truncated partial-wave analyses are combined into a single-channel method for extracting multipoles directly from measured data. In practice, we have created a two-step procedure which is fit to the same database: in the first step we
Autor:
K. Livingston, S. Lutterer, S. Gardner, N. S. Borisov, M. Unverzagt, V. V. Kulikov, H. J. Arends, A. B. Lazarev, A. Neiser, Alfred Švarc, F. Cividini, A. Braghieri, F. Afzal, D. G. Middleton, B. Oussena, C. Collicott, D. P. Watts, K. Spieker, K. Bantawa, M. Bashkanov, R. A. Miskimen, M. Ostrick, S. Kay, C. Sfienti, V. E. Tarasov, Patrick Achenbach, Yu. A. Usov, G. M. Huber, A. E. Kudryavtsev, A. Käser, O. Steffen, P. Aguar-Bartolomé, V. L. Kashevarov, A. G. Denig, E. J. Downie, N. K. Walford, J. Wettig, E. Mornacchi, A. Thiel, J. Stahov, S. Fegan, Durga Paudyal, J. C. McGeorge, Nicholas Zachariou, V. Sokhoyan, I. J. D. MacGregor, M. I. Ferretti Bondy, M. A. Martemianov, D. Gurevich, D. Hornidge, D. Ghosal, S. Wagner, M. Wolfes, Anthony W. Thomas, D. I. Glazier, Guy Ron, Z. Ahmed, Susanna Costanza, Michaela Thiel, W. J. Briscoe, A. Powell, M. Günther, L. Tiator, I. I. Strakovsky, A. N. Mushkarenkov, S. A. Bulychjov, D. M. Manley, Lena Heijkenskjöld, P. P. Martel, R. Omerović, M. Korolija, R. Beck, C. Mullen, J. R. M. Annand, D. Werthmüller, M. Biroth, M. Hadžimehmedović, P. B. Otte, A. B. Neganov, P. Pedroni, W. Gradl, S. N. Prakhov, B. Krusche, P. Drexler, H. Osmanović, T. Rostomyan, I. Supek, I. Gorodnov, Ron L. Workman, Roderick M. Macrae, S. Abt, C. S. Akondi, A. J. Sarty
Publikováno v:
Physical Review C. 100
The γ n → π 0 n differential cross section evaluated for 27 energy bins span the photon-energy range 290–813 MeV ( W = 1.195 –1.553 GeV) and the pion c.m. polar production angles, ranging from 18 ∘ to 162 ∘ , making use of model-dependent
Autor:
J. Stahov, Alfred Švarc, R. Omerović, M. Hadžimehmedović, L. Tiator, H. Osmanović, M. Ostrick, K. Nikonov, V. L. Kashevarov, Mikhail Gorchtein
Publikováno v:
Physical Review C. 100
High-precision data of the $\ensuremath{\gamma}p\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}p$ reaction from its threshold up to $W=1.9\phantom{\rule{0.28em}{0ex}}\mathrm{GeV}$ have been used in order to perform a single-energy partial-wave analysi
Autor:
Alfred Švarc
Publikováno v:
EPJ Web of Conferences, Vol 241, p 03005 (2020)
As it has been shown in the invited talk at the NSTAR-2017 conference [1] it is in principle possible to extract pole parameters directly from experiment with minimal model dependence, and in this contribution one way to achieve it in practice by fix
Autor:
K. Nikonov, R. Omerović, V. L. Kashevarov, J. Stahov, L. Tiator, H. Osmanović, M. Ostrick, M. Gorchteyn, M. Hadžimehmedović, Alfred Švarc
Publikováno v:
Physical Review C. 98
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
Autor:
K. Nikonov, M. Hadžimehmedović, R. Omerović, H. Osmanović, J. Stahov, Lothar Tiator, M. Ostrick, Mikhail Gorchtein, Alfred Švarc, V. L. Kashevarov
Publikováno v:
EPJ Web of Conferences, Vol 199, p 01019 (2019)
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e1a3cf1fdd842d47db179bb84a1a4b9
Autor:
R. Omerović, V. L. Kashevarov, H. Osmanović, K. Nikonov, J. Stahov, M. Ostrick, Alfred Švarc, L. Tiator, M. Hadžimehmedović
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df6aac4653a9bf134317a45fb2ec3b3d
https://doi.org/10.1103/physrevc.97.015207
https://doi.org/10.1103/physrevc.97.015207
Autor:
Melita Salkovic-Petrisic, Alfred Švarc, Vladimir Farkaš, Jelena Osmanovic Barilar, Robert Bagarić, Ana Babic Perhoc, Edna Grünblatt, Ana Knezovic, Peter Riederer
Publikováno v:
Babic Perhoc, A, Osmanovic Barilar, J, Knezovic, A, Farkas, V, Bagaric, R, Svarc, A, Grünblatt, E, Riederer, P & Salkovic-Petrisic, M 2019, ' Cognitive, behavioral and metabolic effects of oral galactose treatment in the transgenic Tg2576 mice ', Neuropharmacology, vol. 148, pp. 50-67 . https://doi.org/10.1016/j.neuropharm.2018.12.018
Alzheimer's disease (AD) is the most common neurodegenerative disorder associated with insulin resistance and glucose hypometabolism in the brain. Oral administration of galactose, a nutrient that provides an alternative source of energy, prevents an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f001022ead7a714f5c31460b1e0250e1
https://doi.org/10.1016/j.neuropharm.2018.12.018
https://doi.org/10.1016/j.neuropharm.2018.12.018
Autor:
Ron L. Workman, J. Stahov, H. Osmanović, R. Omerović, V. L. Kashevarov, K. Nikonov, M. Hadžimehmedović, Y. Wunderlich, Alfred Švarc, L. Tiator, M. Ostrick
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1955c640005f5ddc06929055b376836f
https://doi.org/10.1103/physrevc.97.054611
https://doi.org/10.1103/physrevc.97.054611