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NSR database version of April 11, 2024.

Search: Author = O.Dumbrajs

Found 22 matches.

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1986DU10      Nucl.Phys. A457, 491 (1986)

O.Dumbrajs, H.Heiselberg, A.S.Jensen, A.Miranda, G.C.Oades, J.M.Richard

Microscopic Calculation of Antiproton Atomic-Like Bound States in Light Nuclei

ATOMIC PHYSICS 4He, 6,7Li, 12C, 16,17,18O; calculated antiprotonic level shifts. Microscopic model.

doi: 10.1016/0375-9474(86)90464-1
Citations: PlumX Metrics


1985DU05      Phys.Scr. 31, 485 (1985)

O.Dumbrajs

Scattering Lengths Derived from Atomic Level Shifts in Light Antiprotonic Atoms.

NUCLEAR REACTIONS 4He, 6,7Li, 12C, 16,17O(p-bar, p-bar), E not given; analyzed antiprotonic atom strong interaction level shifts; deduced scattering lengths. Coulomb corrections.

doi: 10.1088/0031-8949/31/6/008
Citations: PlumX Metrics


1985HE24      Nucl.Phys. A446, 637 (1985)

H.Heiselberg, A.S.Jensen, A.Miranda, G.C.Oades, O.Dumbrajs

Phenomenological Analyses of Antiproton Elastic Scattering Data

NUCLEAR REACTIONS 12C, 40Ca, 208Pb(p-bar, p-bar), E at 300, 600 MeV/c; analyzed σ(θ); deduced potential parameters. Phenomenological optical potential.

doi: 10.1016/0375-9474(85)90635-9
Citations: PlumX Metrics


1984DU01      Phys.Rev. C29, 581 (1984)

O.Dumbrajs, J.Frohlich, U.Klein, H.G.Schlaile

Analysis of π± - 12C Elastic Scattering

NUCLEAR REACTIONS 12C(π+, π+), (π-, π-), E=30-226 MeV; analyzed σ(θ), phase shifts; deduced inelasticity parameter energy dependence. Pure hadronic amplitude, phenomenological ansatz.

doi: 10.1103/PhysRevC.29.581
Citations: PlumX Metrics


1984DU02      Phys.Rev. C29, 670 (1984)

O.Dumbrajs

Rapidly Convergent Effective Range Formula

NUCLEAR REACTIONS 1n(p, p), E=1-80 MeV; calculated s-wave scattering lengths, other parameters. Effective range formula.

doi: 10.1103/PhysRevC.29.670
Citations: PlumX Metrics


1984DU04      Nucl.Phys. A412, 195 (1984)

O.Dumbrajs, A.M.Green, J.A.Niskanen

Low-Energy Scattering Parameters and Atomic Level Shifts in the (p-bar)16O, (p-bar)32S and (p-bar)40Ca Systems

NUCLEAR REACTIONS 16O, 32S, 40Ca(p-bar, p-bar), E=low; calculated scattering parameters; deduced atomic level shift, scattering parameter relationship. Optical potential.

doi: 10.1016/0375-9474(84)90678-X
Citations: PlumX Metrics


1984DU06      Z.Phys. A316, 43 (1984)

O.Dumbrajs, W.Dutty, J.Franz, E.Rossle, H.Schmitt, L.Schmitt

Model-Independent Analysis of the Differential Cross Section for the Reaction n + d → π0 + t at Medium Energies

NUCLEAR REACTIONS 2H(n, π0), E=460-560 MeV; analyzed σ(θ). Model independent method.

doi: 10.1007/BF01415659
Citations: PlumX Metrics


1984DU14      Z.Phys. A319, 87 (1984)

O.Dumbrajs

Constraints on the Short-Range Potential from the Energy Level Shifts in Protonium

ATOMIC PHYSICS 1H; analyzed antiprotonic atom level shifts; deduced short range potential constraints.

doi: 10.1007/BF01429771
Citations: PlumX Metrics


1982AT01      Phys.Rev. C26, 680 (1982)

G.Atkin, O.Dumbrajs

Analytic Parametrization for Nuclear Form Factors

NUCLEAR STRUCTURE 3,4He; calculated form factors, charge distribution vs radius. Factorization theorem, analytic parametrization.

doi: 10.1103/PhysRevC.26.680
Citations: PlumX Metrics


1981DU16      Z.Phys. A301, 55 (1981)

O.Dumbrajs

Analytic Parametrizations for Nuclear Form Factors

NUCLEAR STRUCTURE 12C, 16O; calculated charge density distributions, form factors. Pole model, analytic parametrization.

doi: 10.1007/BF01412463
Citations: PlumX Metrics


1981DU19      Z.Phys. A303, 235 (1981)

O.Dumbrajs, M.Martinis

Extraction of Nuclear Coupling Constants from Data on Nuclear Charge Form Factors

NUCLEAR STRUCTURE 4He; analyzed form factor data; deduced nuclear coupling constant. Dispersion relation.

doi: 10.1007/BF01424764
Citations: PlumX Metrics


1980DU01      J.Phys.(London) G6, L9 (1980)

O.Dumbrajs

On the Determination of the π3He3He Coupling on the Basis of PCAC

NUCLEAR REACTIONS 3He(γ, π+), E ≈ threshold; calculated π-He-He coupling constant. PCAC hypothesis.

doi: 10.1088/0305-4616/6/1/003
Citations: PlumX Metrics


1980DU06      Phys.Rev. C21, 1677 (1980)

O.Dumbrajs

Analyticity and Model-Independent Determination of the Nuclear Charge Density

NUCLEAR STRUCTURE 4He; calculated nuclear charge density. Form factor analyticity, model-independent determination.

doi: 10.1103/PhysRevC.21.1677
Citations: PlumX Metrics


1980DU15      Lett.Nuovo Cim. 29, 69 (1980)

O.Dumbrajs

The π3He3He Coupling Constant and the p3H → n3He Charge Exchange

NUCLEAR REACTIONS 3H(p, n), E=0.415-600 GeV; analyzed σ(θ); deduced pion-3He coupling constant.

doi: 10.1007/BF02745103
Citations: PlumX Metrics


1980DU16      Phys.Rev. C22, 2151 (1980)

O.Dumbrajs

Pion Coupling to the A=6, A=12, and A=14 Nuclei

NUCLEAR REACTIONS 6Li, 12C, 14N(p, n), E=0.144 GeV; analyzed σ(θ); deduced pion-nucleus-nucleus coupling constants. PCAC hypothesis.

doi: 10.1103/PhysRevC.22.2151
Citations: PlumX Metrics


1980DU20      Z.Phys. A298, 61 (1980)

O.Dumbrajs

Electron Scattering with the Excitation of the 15.11 MeV State of 12C and the π 12B 12C Coupling Constant

NUCLEAR REACTIONS 12C(e, e'), E not given; analyzed M1 form factor; deduced pion-12B-12C coupling constant. Partially conserved axial current, conserved vector current hypotheses.

doi: 10.1007/BF01416029
Citations: PlumX Metrics


1979DU09      Nuovo Cim. 51A, 81 (1979)

O.Dumbrajs

Backward Dispersion Relations and Pion-4He Phase-Shift Analyses

NUCLEAR REACTIONS 4He(π, π), E=51-260 MeV; calculated phase shifts for L=0, 1, 2. Backward dispersion relations.

doi: 10.1007/BF02822326
Citations: PlumX Metrics


1977DU01      Z.Phys. A280, 249 (1977)

O.Dumbrajs, M.Staszel

Pole and Quark-Counting Model for Form Factors of Light Nuclei

NUCLEAR STRUCTURE 3,4He, 6Li; calculated form factors. Dispersion relation approach.

doi: 10.1007/BF01434349
Citations: PlumX Metrics


1976DU06      J.Phys.(London) G2, 795 (1976)

O.Dumbrajs, M.Staszel

Evaluation of the Medium-Energy Real Parts of the Forward p-4He Elastic Scattering Amplitude from Dispersion Relations

NUCLEAR REACTIONS 4He(p, p), E=1.5-10 GeV; calculated real part of forward scattering amplitude.

doi: 10.1088/0305-4616/2/11/004
Citations: PlumX Metrics


1975DU09      Phys.Lett. 57B, 327 (1975)

S.Dubnicka, O.Dumbrajs

Estimation of the Coupling 4He dd

NUCLEAR REACTIONS 4He(d, d); calculated coupling.

doi: 10.1016/0370-2693(75)90462-1
Citations: PlumX Metrics


1974DU11      Nucl.Phys. A235, 417 (1974)

S.Dubnicka, O.V.Dumbrajs

Determination of Nuclear Spectroscopic Factors from Data on Differential Cross Sections for Elastic Neutron Scattering on Light Nuclei

NUCLEAR STRUCTURE 2H, 12C, 14N; calculated neutron coupling constant.

doi: 10.1016/0375-9474(74)90202-4
Citations: PlumX Metrics


1973DU10      Rev.Roum.Phys. 18, 1249 (1973)

O.V.Dumbrais, F.Nichitiu, Y.A.Scherbakov

Application of the Accelerated Convergence Expansion to a Phase Shift Analysis of the Elastic π± He4 Scattering

NUCLEAR REACTIONS 4He(π+, π+), (π-, π-), E=24-180 MeV; calculated σ.


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Note: The following list of authors and aliases matches the search parameter O.Dumbrajs: , O.V.DUMBRAIS, O.V.DUMBRAJS