NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = A.Svarc Found 46 matches. 2023BR14 Phys.Rev. C 108, 065205 (2023) W.J.Briscoe, A.Schmidt, I.Strakovsky, R.L.Workman, A.Svarc Extended SAID partial-wave analysis of pion photoproduction
doi: 10.1103/PhysRevC.108.065205
2023SV02 Phys.Rev. C 108, 014615 (2023) Laurent+Pietarinen partial-wave analysis NUCLEAR REACTIONS 1H(γ, K+Λ), E(cm)=1625-2296 MeV; analyzed kaon photoproduction data from CLAS and GRAAL experiments; deduced multipoles, resonance pole parameters. Experimental data fitted in terms of a modified Laurent expansion (Laurent+Pietarinen expansion). Bonn-Gatchina analysis.
doi: 10.1103/PhysRevC.108.014615
2022SV02 Phys.Rev. C 105, 024614 (2022) A.Svarc, Y.Wunderlich, L.Tiator Application of the single-channel, single-energy amplitude and partial-wave analysis method to K+Λ photoproduction NUCLEAR REACTIONS 1H(γ, K+Λ), E(cm)=1625-2296 MeV; analyzed σ(θ) from CLAS(2006BR06, 2010MC02, 2016PA25) and GRAAL (2007LL01); deduced photoproduction multipoles. Amplitude and partial-wave analysis (AA-PWA).
doi: 10.1103/PhysRevC.105.024614
2021OS03 Phys.Rev. C 104, 034605 (2021) H.Osmanovic, M.Hadzimehmedovic, R.Omerovic, J.Stahov, V.Kashevarov, M.Ostrick, L.Tiator, A.Svarc Single-energy partial-wave analysis for pion photoproduction with fixed-t analyticity NUCLEAR REACTIONS 1H(polarized γ, π0p), (polarized γ, π+n), 1n(polarized γ, π-p), (polarized γ, π0n), W<2.2 GeV; analyzed experimental world collection of data from several laboratories; deduced helicity amplitudes, polarization observables, electric and magnetic isoscalar and isovector multipoles for different isospins using fixed-t analyticity constraining method for single-energy partial wave analysis (SE PWA) in pion photoproduction. Compiled experimental world data for π0p, π+n and π-p channels from experiments at A2MAMI, CLAS, CBELSA/TAPS
doi: 10.1103/PhysRevC.104.034605
2021SV01 Phys.Rev. C 104, 014605 (2021) Each single-energy, single-channel partial-wave analysis is inherently model-dependent
doi: 10.1103/PhysRevC.104.014605
2020SV01 Phys.Rev. C 102, 064609 (2020) A.Svarc, Y.Wunderlich, L.Tiator Amplitude- and truncated partial-wave analyses combined: A single-channel method for extracting photoproduction multipoles directly from measured data NUCLEAR REACTIONS 1H(polarized γ, ηp), (polarized γ, π0p), E=710-1470 MeV; analyzed experimental σ(θ, E) data from CBELSA/TAPS (2020, PL-B 803, 135323), A2@MAMI (2016An07), GRAAL (2007Ba67), and A2@MAMI (2010Mc05) collaborations for photoproduction of mesons; deduced photoproduction multipoles for partial waves directly from the experimental data by combining amplitude- and truncated partial-wave analyses.
doi: 10.1103/PhysRevC.102.064609
2019OS04 Phys.Rev. C 100, 055203 (2019) H.Osmanovic, M.Hadzimehmedovic, R.Omerovic, J.Stahov, M.Gorchtein, V.Kashevarov, K.Nikonov, M.Ostrick, L.Tiator, A.Svarc Single-energy partial wave analysis for π0 photoproduction on the proton with fixed-t analyticity imposed NUCLEAR REACTIONS 1H(γ, π0p), (polarized γ, π0p), E(cm)=1.07-1.9 GeV; analyzed experimental differential σ(E) data from A2@MAMI, DAPHNE, MAMI, CBELSA/TAPS and GRAAL collaborations; deduced electric and magnetic multipoles up to l=3. Fixed-t single energy partial-wave analysis (SE PWA) of π0 photoproduction on the world collection of data.
doi: 10.1103/PhysRevC.100.055203
2018GO05 Phys.Rev. C 97, 035204 (2018) B.Golli, H.Osmanovic, S.Sirca, A.Svarc Genuine quark state versus dynamically generated structure for the Roper resonance
doi: 10.1103/PhysRevC.97.035204
2018OS01 Phys.Rev. C 97, 015207 (2018) H.Osmanovic, M.Hadzimehmedovic, R.Omerovic, J.Stahov, V.Kashevarov, K.Nikonov, M.Ostrick, L.Tiator, A.Svarc Fixed-t analyticity as a constraint in single-energy partial-wave analyses of meson photoproduction reactions NUCLEAR REACTIONS 1H(γ, pη), E=1487-1850 MeV; analyzed differential σ(E, θ) for polarization observables experimental data at MAMI and GRAAL facilities using analytical constraints from fixed-t dispersion relations in partial wave analysis of η photoproduction data.
doi: 10.1103/PhysRevC.97.015207
2018SV01 Phys.Rev. C 97, 054611 (2018) A.Svarc, Y.Wunderlich, H.Osmanovic, M.Hadzimehmedovic, R.Omerovic, J.Stahov, V.Kashevarov, K.Nikonov, M.Ostrick, L.Tiator, R.Workman Connection between angle-dependent phase ambiguities and the uniqueness of the partial-wave decomposition
doi: 10.1103/PhysRevC.97.054611
2018SV03 Phys.Rev. C 98, 045206 (2018) A.Svarc, H.Osmanovic, M.Hadzimehmedovic, R.Omerovic, J.Stahov, M.Gorchteyn, V.Kashevarov, K.Nikonov, M.Ostrick, L.Tiator Role of angle-dependent phase rotations of reaction amplitudes in η photoproduction on protons NUCLEAR REACTIONS 1H(γ, η), E(cm)=1.5-2.0 GeV; calculated E0+η and all η photoproduction multipoles using Kent State University, Bonn-Gatchina, Julich-Bonn, and Mainz EtaMAID models, differential σ(θ) using partial wave analysis. Comparison with experimental data from MAMI and GRAAL collaborations.
doi: 10.1103/PhysRevC.98.045206
2018TI10 Eur.Phys.J. A 54, 210 (2018) L.Tiator, M.Gorchtein, V.L.Kashevarov, K.Nikonov, M.Ostrick, M.Hadzimehmedovic, R.Omerovic, H.Osmanovic, J.Stahov, A.Svarc Eta and etaprime photoproduction on the nucleon with the isobar model EtaMAID2018 NUCLEAR REACTIONS 1H(γ, η), (γ, η')1H, E ≈ 1-3 GeV;1n(γ, η)1n, E ≈ 1-3 GeV; calculated σ using EtaMAID2018 code (updated isobar model EtaMAID); compared with published experimental data.
doi: 10.1140/epja/i2018-12643-x
2017WU12 Phys.Rev. C 96, 065202 (2017) Y.Wunderlich, A.Svarc, R.L.Workman, L.Tiator, R.Beck Toward an understanding of discrete ambiguities in truncated partial-wave analyses
doi: 10.1103/PhysRevC.96.065202
2016TI11 Phys.Rev. C 94, 065204 (2016) L.Tiator, M.Doring, R.L.Workman, M.Hadzimehmedovic, H.Osmanovic, R.Omerovic, J.Stahov, A.Svarc Baryon transition form factors at the pole
doi: 10.1103/PhysRevC.94.065204
2015SV01 Phys.Rev. C 91, 015207 (2015) A.Svarc, M.Hadzimehmedovic, H.Osmanovic, J.Stahov, R.L.Workman Pole structure from energy-dependent and single-energy fits to GWU-SAID πN elastic scattering data
doi: 10.1103/PhysRevC.91.015207
2014SV01 Phys.Rev. C 89, 045205 (2014) A.Svarc, M.Hadzimehmedovic, R.Omerovic, H.Osmanovic, J.Stahov Poles of Karlsruhe-Helsinki KH80 and KA84 solutions extracted by using the Laurent-Pietarinen method
doi: 10.1103/PhysRevC.89.045205
2014SV02 Phys.Rev. C 89, 065208 (2014) A.Svarc, M.Hadzimehmedovic, H.Osmanovic, J.Stahov, L.Tiator, R.Workman Pole positions and residues from pion photoproduction using the Laurent-Pietarinen expansion method
doi: 10.1103/PhysRevC.89.065208
2013SV01 Phys.Rev. C 87, 067001 (2013) Examining potential shortcomings in using phase shifts as a link between experiment and QCD
doi: 10.1103/PhysRevC.87.067001
2013SV02 Phys.Rev. C 88, 035206 (2013) A.Svarc, M.Hadzimehmedovic, H.Osmanovic, J.Stahov, L.Tiator, R.L.Workman Introducing the Pietarinen expansion method into the single-channel pole extraction problem
doi: 10.1103/PhysRevC.88.035206
2011CE05 Phys.Rev. C 84, 015205 (2011) S.Ceci, M.Doring, C.Hanhart, S.Krewald, U.-G.Meissner, A.Svarc Relevance of complex branch points for partial wave analysis
doi: 10.1103/PhysRevC.84.015205
2011HA40 Phys.Rev. C 84, 035204 (2011) M.Hadzimehmedovic, S.Ceci, A.Svarc, H.Osmanovic, J.Stahov Poles as the only true resonant-state signals extracted from a worldwide collection of partial-wave amplitudes using only one, well controlled pole-extraction method
doi: 10.1103/PhysRevC.84.035204
2011OS02 Phys.Rev. C 84, 035205 (2011) H.Osmanovic, S.Ceci, A.Svarc, M.Hadzimehmedovic, J.Stahov Stability of the Zagreb realization of the Carnegie-Mellon-Berkeley coupled-channels unitary model
doi: 10.1103/PhysRevC.84.035205
2010BA38 Phys.Rev. C 82, 038203 (2010) M.Batinic, S.Ceci, A.Svarc, B.Zauner Poles of the Zagreb analysis partial-wave T matrices
doi: 10.1103/PhysRevC.82.038203
2010TI08 Phys.Rev. C 82, 055203 (2010) L.Tiator, S.S.Kamalov, S.Ceci, G.Y.Chen, D.Drechsel, A.Svarc, S.Yang Singularity structure of the πN scattering amplitude in a meson-exchange model up to energies W≤2.0 GeV
doi: 10.1103/PhysRevC.82.055203
2008CA12 Eur.Phys.J. A 35, 253 (2008) S.Capstick, A.Svarc, L.Tiator, J.Gegelia, M.M.Giannini, E.Santopinto, C.Hanhart, S.Scherer, T.-S.H.Lee, T.Sato, N.Suzuki The physical meaning of scattering matrix singularities in coupled-channel formalisms BRAG 2007 Workshop summary
doi: 10.1140/epja/i2007-10576-1
2006CE02 Few-Body Systems 39, 27 (2006) The Re-Analysis of the 1700 MeV Structure of the P11 Partial Wave Using the πN → KΛ Production Data
doi: 10.1007/s00601-006-0153-3
2006CE03 Phys.Rev.Lett. 97, 062002 (2006) πN → ηN Data Require the Existence of the N(1710) P11 Resonance, Reducing the 1700-MeV Continuum Ambiguity
doi: 10.1103/PhysRevLett.97.062002
2001TI01 Phys.Rev. D63, 052001 (2001) W.B.Tippens, V.Abaev, M.Batinic, V.Bekrenev, W.J.Briscoe, R.E.Chrien, M.Clajus, D.Isenhower, N.Kozlenko, S.Kruglov, M.J.Leitch, A.Marusic, T.Moriwaki, T.Morrison, B.M.K.Nefkens, J.C.Peng, P.H.Pile, J.W.Price, D.Rigsby, M.E.Sadler, R.Sawafta, I.Slaus, H.Seyfarth, A.Starostin, I.Supek, R.J.Sutter, A.Svarc, D.B.White Measurement of Charge Symmetry Breaking by the Comparison of π+d → ppη with π-d → nnη NUCLEAR REACTIONS 2H(π+, 2pX), (π-, 2nX), E at 655-752 MeV/c; measured η meson production associated invariant mass spectra, σ; deduced charge symmetry breaking features.
doi: 10.1103/PhysRevD.63.052001
1999CA19 Phys.Rev. C59, R3002 (1999) S.Capstick, T.-S.H.Lee, W.Roberts, A.Svarc Evidence for the Fourth P11 Resonance Predicted by the Constituent Quark Model
doi: 10.1103/PhysRevC.59.R3002
1999CE06 J.Phys.(London) G25, L35 (1999) The Importance of the Nucleon-Nucleon Correlations for the ηα S-Wave Scattering Length, and the π0-η Mixing Angle in the Low-Energy ηα Scattering Length Model NUCLEAR REACTIONS 2H(d, π0), E=1.1 GeV; 2H(d, αX), E not given; analyzed data; deduced ηα S-wave scattering length contributions, related features.
doi: 10.1088/0954-3899/25/6/101
1998BA39 Phys.Scr. 58, 15 (1998) M.Batinic, I.Dadic, I.Slaus, A.Svarc, B.M.K.Nefkens, T.-S.H.Lee The New Determination of the ηN S-Wave Scattering Length from a Three-Channel, Multi-Resonance Amplitude Analysis
1997BA65 Phys.Scr. 56, 321 (1997) M.Batinic, A.Svarc, T.-S.H.Lee Near Threshold η Production in Proton-Proton Collisions NUCLEAR REACTIONS 1H(p, X), E=1260-1360 MeV; analyzed σ; deduced η production mechanism features.
1996BA90 Few-Body Systems 20, 69 (1996) Complete Analysis of the ηN S-Wave Scattering-Length Values and Its Natural Limitations in Any Single-Resonance Model NUCLEAR REACTIONS 1H(π-, X), E ≈ thershold; calculated η(nucleon)-scattering length, production σ. Single resonance reduction of multi-resonance model.
1995BA33 Phys.Rev. C51, 2310 (1995); Erratum Phys.Rev. C57, 1004 (1998) M.Batinic, I.Slaus, A.Svarc, B.M.K.Nefkens πN → (Eta)N and (Eta)N → (Eta)N Partial-Wave T Matrices in a Coupled, Three-Channel Model NUCLEAR REACTIONS 1H(π-, X), E ≤ 2500 MeV; analyzed σ(E), σ(θ) along with πN-, (eta)N-elastic scattering data. Three-coupled-channels model.
doi: 10.1103/PhysRevC.51.2310
1995BA77 Phys.Rev. C52, 2188 (1995) ηN S-Wave Scattering Length in a Three-Coupled-Channel, Multiresonance, Unitary Model
doi: 10.1103/PhysRevC.52.2188
1994BA53 Phys.Rev. C50, 1300 (1994) M.Batinic, T.-S.H.Lee, M.P.Locher, Y.Lu, A.Svarc Off-Shell Effects for the Reaction pp → πd at High Energies NUCLEAR REACTIONS 1H(polarized p, π+), E=1.3-2.4 GeV; analyzed σ(θ), analyzing power data; deduced pp distortion role. Relativistic meson rescattering model.
doi: 10.1103/PhysRevC.50.1300
1993SL02 Acta Phys.Pol. B24, 1857 (1993) I.Slaus, M.Batinic, A.Marusic, I.Supek, A.Svarc Symmetries
1992SV01 J.Phys.(London) G18, L11 (1992) The Pauli Principle is Sufficient to Account for the Broad Structure in pp → π+d at the Invariant Mass of 2.41 GeV NUCLEAR REACTIONS 1H(p, π+), E=high; analyzed data; deduced Pauli principle role in observed broad structure.
doi: 10.1088/0954-3899/18/1/003
1991LO01 Z.Phys. A338, 89 (1991) Pole Expansion of the Deuteron Vertex Functions Revisited NUCLEAR STRUCTURE 2H; analyzed (e, d) scattering data; deduced S-, D-state vertex function. Relativistic pole approximation. NUCLEAR REACTIONS 2H(e, e), E not given; analyzed structure function, tensor polarization. Relativistic pole approximation.
doi: 10.1007/BF01279118
1990LO19 Fizika(Zagreb) 22, 549 (1990) Deuteron Vertex Functions Including Meson Exchange Corrections NUCLEAR STRUCTURE 2H; analyzed binding energy, effective radius, quadrupole moment data; deduced S-, D-state vertex functions. Meson exchange corrections. NUCLEAR REACTIONS 2H(e, e), E not given; analyzed structure function, t20 data; deduced S-, D-state vertex functions. Meson exchange corrections.
1988LO14 Few-Body Systems 5, 59 (1988) Off-Shell Effects in pp → πd, πd → pp Spin Observables NUCLEAR REACTIONS 1H(polarized p, π), E=515, 578 MeV; analyzed polarization observable data; deduced off-shell effects in pp-π, πd-pp spin observables.
doi: 10.1007/BF01351269
1986LO02 Czech.J.Phys. B36, 230 (1986) M.P.Locher, A.Svarc, M.Batinic The Reaction pp-πd in the GeV Region NUCLEAR REACTIONS 2H(p, π+), E=0.525, 0.87, 1.52 GeV; calculated σ(θ). 1H(p, π+), E=1-4 GeV; calculated all helicity amplitudes. Relativistic model.
doi: 10.1007/BF01597151
1985LO01 J.Phys.(London) G11, 183 (1985) Energy Dependence of Relativistic Predictions for pp → dγ in the Δ-Resonance Region NUCLEAR REACTIONS 1H(p, π), (polarized p, π), E=400-800 MeV; calculated σ(θ), asymmetry, spin correlation parameter vs θ. 2H(π, p), E=510-799 MeV; calculated vector polarization vs θ. Unpolarized, polarized targets. Isobar region, single neutron exchange, channel distortion factors.
doi: 10.1088/0305-4616/11/2/005
1984GR07 Ann.Phys.(New York) 153, 301 (1984) W.Grein, A.Konig, P.Kroll, M.P.Locher, A.Svarc Relativistic Study of the Reaction pp → dπ: Formalism and comparison with experiment at T(p) = 578 MeV NUCLEAR REACTIONS 1H(polarized p, π), E=578 MeV; calculated beam asymmetry, spin correlation parameter vs θ. Relativistic approach, pion-nucleon amplitudes, off-shell effects.
doi: 10.1016/0003-4916(84)90021-6
1984LO02 Z.Phys. A316, 55 (1984) Pole Expansion of the Deuteron Vertex Function Constrained by Modern Data NUCLEAR REACTIONS 2H(e, e), E not given; calculated σ(θ) components, S-, D-state vertex functions; deduced S-, D-state poles. Static properties input, invariant multipole expansion technique.
doi: 10.1007/BF01415661
1980SV02 J.Phys.(London) G6, 1397 (1980) The Extraction of the Neutron-Neutron Scattering Length from Muon Capture by a Deuteron NUCLEAR REACTIONS 2H(μ-, n) E at rest; calculated neutron spectrum; deduced neutron-neutron off-energy-shell interaction vs neutron-neutron scattering length. Phase space, weak interaction, final state enhancement.
doi: 10.1088/0305-4616/6/11/011
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