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Search: Author = R.Mach

Found 37 matches.

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1996CI08      Nucl.Phys. A609, 377 (1996)

A.Cieply, R.Mach

Coupled Channel Approach for Pionic Atoms 1H and 3He

ATOMIC PHYSICS, Mesic-Atoms 1H, 3He; calculated pionic atom energy shifts, absorption widths. Momentum space method, coupled-channels approach.

doi: 10.1016/S0375-9474(96)00269-2
Citations: PlumX Metrics

1994BY02      Nucl.Phys. A574, 685 (1994)

P.Bydzovsky, R.Mach, S.S.Kamalov

Nuclear Structure Effects in (π+, π0) and (p, n) Reactions on 13C

NUCLEAR REACTIONS 13C(π+, π0), E=165, 50 MeV; 13C(p, n), E=160 MeV; calculated σ(θ), asymmetry vs θ. Microscopic plus phenomenological models.

doi: 10.1016/0375-9474(94)90954-7
Citations: PlumX Metrics

1994CI01      Phys.Rev. C49, 1454 (1994)

A.Cieply, R.Mach

Influence of Nuclear Structure on the Characteristics of Light Pionic Atoms

NUCLEAR STRUCTURE A=4-44; analyzed pionic level shifts, widths data; deduced structure, nonlocal effects role. Multiple scattering theory, momentum space formulation, standard pion-nucleus optical potential extension.

ATOMIC PHYSICS, Mesic-Atoms A=4-44; analyzed pionic level shifts, widths data; deduced structure, nonlocal effects role. Multiple scattering theory, momentum space formulation, standard pion-nucleus optical potential extension.

doi: 10.1103/PhysRevC.49.1454
Citations: PlumX Metrics

1994ME01      Phys.Rev. C49, 320 (1994)

R.Meier, E.Boschitz, B.Brinkmoller, J.Buhler, S.Ritt, M.Wessler, J.A.Konter, S.Mango, B.van den Brandt, V.A.Efimovykh, A.I.Kovalev, A.N.Prokofiev, V.V.Polyakov, P.Chaumette, J.Deregel, G.Durand, J.Fabre, R.Mach, R.Tacik

Vector Analyzing Power Measurement of Pion Scattering from Polarized 7Li in the Region of the Δ33 Resonance

NUCLEAR REACTIONS 7Li(π+, π+), E=134, 164, 194 MeV; measured inclusive analyzing powers iT11(θ), σ(θ). Polarized target. Coupled channels optical model.

doi: 10.1103/PhysRevC.49.320
Citations: PlumX Metrics

1993BY02      Phys.Rev. C47, 2414 (1993)

P.Bydzovsky, R.Mach

Nucleon-Nucleon Bound State Contribution to the Proton Scattering by Nuclei

NUCLEAR REACTIONS 12C(p, p), E=64.9-83.4 MeV; 13C(p, p), (p, n), 40Ca, 16O(p, p), E=72 MeV; calculated σ(θ); deduced nucleon-nucleon bound state role.

doi: 10.1103/PhysRevC.47.2414
Citations: PlumX Metrics

1992BE41      Phys.Rev. C46, 2456 (1992)

C.Bennhold, L.Tiator, S.S.Kamalov, R.Mach

Electromagnetic and Pion-Nuclear Reactions on 15N

NUCLEAR REACTIONS 15N(π+, π0), E=30, 48 MeV; calculated σ(θ). 15N(γ, π-), E=170 MeV; calculated σ(θ). 15N(e, e), E not given; calculated M1 form factor; deduced higher configurations role. Shell model.

doi: 10.1103/PhysRevC.46.2456
Citations: PlumX Metrics

1991BY01      Phys.Rev. C43, 1610 (1991)

P.Bydzovsky, R.Mach, F.Nichitiu

Isospin Effects in Antinucleon-Nucleon Scattering and Annihilation

NUCLEAR REACTIONS 1H(p-bar, p-bar), (n-bar, n-bar), E ≤ 300 MeV; calculated elastic, reaction σ(E); deduced isospin effects role. Optical model.

doi: 10.1103/PhysRevC.43.1610
Citations: PlumX Metrics

1991CI08      Phys.Rev. C44, 713 (1991)

A.Cieply, M.Gmitro, R.Mach, S.S.Kamalov

Momentum-Space Method for Pionic Atoms

NUCLEAR STRUCTURE 4He, 6Li, 12,13C, 14N, 16O, 19F, 20Ne, 23Na, 24Mg, 28Si, 32S, 40Ca, 56Fe; calculated symmetrized Fermi density distribution parameters, pionic level shifts, widths. Momentum space method.

ATOMIC PHYSICS, Mesic-Atoms 4He, 6Li, 12,13C, 14N, 16O, 19F, 20Ne, 23Na, 24Mg, 28Si, 32S, 40Ca, 56Fe; calculated pionic level shifts, widths. Momentum space method.

doi: 10.1103/PhysRevC.44.713
Citations: PlumX Metrics

1991CI11      Czech.J.Phys. B41, 1091 (1991)

A.Cieply, M.Gmitro, R.Mach

Nuclear Structure Effects in Light π-Mesoatoms

NUCLEAR STRUCTURE A ≤ 50; calculated pionic level energy shifts. 19F, 20Ne, 23Na, 24Mg, 28Si, 32S, 40,44Ca; calculated charge radii. Nucleon Fermi motion contribution to pion-nucleus optical potential.

ATOMIC PHYSICS, Mesic-Atoms A ≤ 50; calculated pionic level energy shifts. Nucleon Fermi motion contribution to pion-nucleus optical potential.

doi: 10.1007/BF01598984
Citations: PlumX Metrics

1991KA18      Phys.Lett. 259B, 410 (1991)

S.S.Kamalov, C.Bennhold, R.Mach

2p-Shell Admixtures in Pion Single Charge Exchange on 13C

NUCLEAR REACTIONS 13C(π+, π0), E=30-240; calculated σ(θ). 2p-shell admixtures.

doi: 10.1016/0370-2693(91)91648-F
Citations: PlumX Metrics

1991RI01      Phys.Rev. C43, 745 (1991)

S.Ritt, E.T.Boschitz, R.Meier, R.Tacik, M.Wessler, K.Junker, J.A.Konter, S.Mango, D.Renker, B.van den Brandt, V.Efimovykh, A.Kovaliov, A.Prokofev, R.Mach, P.Chaumette, J.Deregel, G.Durand, J.Fabre, W.Thiel

Measurement of the Vector Analyzing Power iT11 in π+-6Li(pol) Scattering

NUCLEAR REACTIONS 6Li(π+, π+), (π+, π+'), E=100-219 MeV; measured σ(θ), vector analyzing power vs θ. Vector polarized 6LiD target. Model analyses.

doi: 10.1103/PhysRevC.43.745
Citations: PlumX Metrics

1990KI06      Nucl.Phys. A511, 592 (1990)

M.Kirchbach, R.Mach, D.O.Riska

The Axial Charge Sum Rule for Complex Nuclei

NUCLEAR STRUCTURE 15C, 15N; calculated one-body transition density for states; deduced effective axial charge form factor features.

doi: 10.1016/0375-9474(90)90112-Y
Citations: PlumX Metrics

1990MA21      Nucl.Phys. A511, 601 (1990)

R.Mach, S.S.Kamalov

Spin Effects in Pion Scattering by Nitrogen

NUCLEAR REACTIONS 15,14N(π+, π+), (π-, π-), E ≈ 130-220 MeV; 15N(π+, π0), E=130, 164 MeV; calculated σ(θ), vector analyzing power vs θ. Optical model.

doi: 10.1016/0375-9474(90)90113-Z
Citations: PlumX Metrics

1990ME11      Phys.Rev. C42, 2222 (1990)

R.Meier, E.T.Boschitz, S.Ritt, R.Tacik, M.Wessler, J.A.Konter, S.Mango, D.Renker, B.van den Brandt, W.Meyer, W.Thiel, R.Mach, P.Amaudruz, R.R.Johnson, G.R.Smith, P.Weber

Pion Scattering from Polarized 15N at T(π) = 164 MeV

NUCLEAR REACTIONS 15N(π+, π+), (π+, π+'), E=164 MeV; measured σ(E(π)), σ(θ), analyzing power vs θ. Polarized 15NH3 target. Momentum space coupled-channels formalism.

doi: 10.1103/PhysRevC.42.2222
Citations: PlumX Metrics

1989TA21      Phys.Rev.Lett. 63, 1784 (1989)

R.Tacik, E.T.Boschitz, R.Meier, S.Ritt, M.Wessler, K.Junker, J.A.Konter, S.Mango, D.Renker, B.van den Brandt, W.Meyer, W.Thiel, P.Chaumette, J.Deregel, G.Durand, J.Fabre, P.Amaudruz, R.R.Johnson, G.Smith, P.Weber, R.Mach

Spin Effects in π-Nucleus Scattering in the Region of the Δ(3, 3) Resonance

NUCLEAR REACTIONS 15N(π+, π+), (π+, π+'), E=164 MeV; 6Li(π+, π+), (π+, π+'), E=134, 164 MeV; measured σ(θ), vector, tensor analyzing power vs θ. Polarized targets.

doi: 10.1103/PhysRevLett.63.1784
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1988ER06      J.Phys.(London) G14, 1511 (1988)

R.A.Eramzhyan, M.Gmitro, T.D.Kaipov, S.S.Kamalov, R.Mach

Pion Scattering by 6Li

NUCLEAR REACTIONS 6Li(π+, π+), (π+, π+'), E=80-260 MeV; calculated σ(E), σ(θ), vector polarization.

doi: 10.1088/0305-4616/14/12/012
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1988MA58      Z.Phys. A331, 89 (1988)

R.Mach, J.Zofka, K.Itonaga, T.Motoba, H.Bando

Pions in Nuclear Interior - Sensitive Test by Hypernuclear Decay

1987GM02      Phys.Rev. C36, 1105 (1987)

M.Gmitro, S.S.Kamalov, R.Mach

Momentum-Space Second-Order Optical Potential for Pion-Nucleus Elastic Scattering

NUCLEAR REACTIONS 4He, 6Li, 16O, 28Si, 40Ca(π+, π+), (π-, π-), E=14-250 MeV; calculated σ(θ); deduced model parameters mass independent nature. Optical model.

doi: 10.1103/PhysRevC.36.1105
Citations: PlumX Metrics

1987GM04      Prog.Theor.Phys.(Kyoto), Suppl. 91, 60 (1987)

M.Gmitro, S.Kamalov, R.Mach

Pion-Nucleus Scattering at Low and Resonance Energies

NUCLEAR REACTIONS 12C(π+, π+), E=14-67.5 MeV; 12C(π-, π-), E=120-226 MeV; 4He(π+, π+), E=25-98 MeV; 4He(π-, π-), E=110-220 MeV; 6Li(π+, π+), E=100-240 MeV; 16O(π+, π+), E=20-240 MeV; 28Si(π, π), E=130-226 MeV; 40Ca(π, π), E=64.8-241 MeV; calculated σ(θ). 4He, 6Li, 12C, 16O, 40Ca(π, π), E ≈ 60-320 MeV; calculated σ(E).

doi: 10.1143/PTPS.91.60
Citations: PlumX Metrics

1985GM01      Phys.Rev. C31, 1349 (1985)

M.Gmitro, J.Kvasil, R.Mach

Pion Elastic and Inelastic Scattering on s-d Shell Nuclei in the Δ33-Resonance Region. Coupled-Channel Analysis

NUCLEAR REACTIONS 24Mg(π+, π+), (π-, π-), (π+, π+'), (π-, π-'), E=180 MeV; 28Si(π-, π-), (π-, π-'), E=130, 180, 226 MeV; calculated σ(θ). 26Mg, 18O(π+, π-), E ≈ 100-340 MeV; calculated σ(θ) vs E. Coupled-channels model, momentum space.

doi: 10.1103/PhysRevC.31.1349
Citations: PlumX Metrics

1984ER06      Nucl.Phys. A429, 403 (1984)

R.A.Eramzhyan, M.Gmitro, S.S.Kamalov, T.D.Kaipov, R.Mach

Pion Photoproduction and Inelastic Scattering in A = 12 Nuclei: Transitions to the lowest isovector 1+ and 2+ levels

NUCLEAR REACTIONS 12C(e, e'), E not given; calculated form factors. 12C(π+, π+), E=30, 87.5, 162, 226 MeV; 12C(π+, π+'), E=230, 180, 140, 100 MeV; 12C(γ, π+), E not given; calculated σ(θ). 12C(γ, π-), E not given; calculated σ vs (E(π)). Continuity equation approach.

doi: 10.1016/0375-9474(84)90689-4
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1984GM01      Yad.Fiz. 40, 107 (1984)

M.Gmitro, S.S.Kamalov, R.Mach, M.G.Sapozhnikov

Off-Shell Effects in Pion-Nucleus Elastic Scattering

NUCLEAR REACTIONS 3He(π-, π-), E=145, 98, 68 MeV; 4He(π-, π-), E=51, 110, 180 MeV; 12C(π+, π+), E=87.5, 162, 226 MeV; 16O(π+, π+), E=114, 163, 240 MeV; 24Mg(π+, π+), E=180 MeV; measured σ(θ); deduced reaction mechanism.

1984MA04      J.Phys.(London) G10, 147 (1984)

R.Mach, M.G.Sapozhnikov

Investigation of Second-Order Optical Potential for Elastic π - 4He Scattering

NUCLEAR REACTIONS 4He(π-, π-), E=24, 51, 98, 145, 220 MeV; calculated σ(θ); deduced intermediate pion double isospin, spin-flip, recoil correlation effects. Second-order optical potential.

doi: 10.1088/0305-4616/10/2/007
Citations: PlumX Metrics

1983ER02      J.Phys.(London) G9, 605 (1983)

R.A.Eramzhyan, M.Gmitro, S.S.Kamalov, R.Mach

Nuclear Pion Photoproduction: A theory and the 16O(γ, π+)16N(bound) example

NUCLEAR REACTIONS 16O(γ, π+), E=150-300 MeV; calculated photoproduction σ(θ), σ(E). Momentum space formulation, Fermi motion, relativistic, gauge invariance, multiple rescattering effects.

doi: 10.1088/0305-4616/9/6/006
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1983MA44      Czech.J.Phys. B33, 772 (1983)


Galileo-Invariant Theory of Low Energy Pion-Nucleus Scattering III. The π- - 4He Reaction and Light π-Mesoatoms

NUCLEAR REACTIONS 4He(π-, π-), E=50-260 MeV; calculated σ(E). Galileo invariant optical models.

ATOMIC PHYSICS, Mesic-Atoms 3,4He, 6,7Li, 9Be, 10,11B, 12C, 14N, 16O; calculated level shifts, widths.

doi: 10.1007/BF01589750
Citations: PlumX Metrics

1982GM01      Phys.Lett. 113B, 205 (1982)

M.Gmitro, J.Kvasil, R.Mach

Elastic and Inelastic Scattering of 180 MeV π(±) on 24Mg

NUCLEAR REACTIONS 24Mg(π-, π-), (π+, π+), (π+, π+'), E=180 MeV; calculated σ(θ). Coupled-channels method, momentum space.

doi: 10.1016/0370-2693(82)90821-8
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1982MA26      J.Phys.(London) G8, L117 (1982)

R.Mach, M.G.Sapozhnikov

Nuclear Structure Sensitivity in the Reaction 3He(π-, π0)3H

NUCLEAR REACTIONS 3He(π-, π0), E=200, 250, 290 MeV; calculated σ(θ); deduced 3He magnetic radius dependence.

doi: 10.1088/0305-4616/8/8/002
Citations: PlumX Metrics

1980FA12      Nuovo Cim. A57, 111 (1980)

I.V.Falomkin, V.I.Lyashenko, R.Mach, V.A.Panyushkin, G.B.Pontecorvo, M.G.Sapozhnikov, Yu.A.Shcherbakov, F.Balestra, M.P.Bussa, L.Busso, R.Garfagnini, T.Angelescu, I.Doniciu, M.Gavrilas, A.Mihul, F.Nichitiu, L.Pascu, M.Antonova

On the Relationship between the Pion and Electron Elastic Scattering by the Three-Nucleon System

NUCLEAR REACTIONS 3He(π-, π-), E=145, 180, 195 MeV; measured σ(θ). 3He deduced nuclear form factors, magnetic radius. Optical potential, meson exchange effects.

doi: 10.1007/BF02832951
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1979GM01      Z.Phys. A290, 179 (1979)

M.Gmitro, R.Mach

Coupled Channel Method for the π-4He Elastic and Inelastic Scattering

NUCLEAR REACTIONS 4He(π-, π-), (π-, π-'), E=40-75 MeV; calculated σ. Coupled-channel method in momentum space, K-matrix approach.

doi: 10.1007/BF01408113
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1978MA49      Nuovo Cim. 45A, 325 (1978)

R.Mach, M.G.Sapozhnikov, C.Guaraldo, R.Scrimaglio, F.Balestra, R.Garfagnini, G.Piragino

Pion-Induced Knock-Out Reactions on 4He

NUCLEAR REACTIONS 4He(π+, π+p), 4He(π+, π+n), 4He(π+, π0p), E=110-160 MeV; measured σ(θ), relative σ(θ); deduced reaction mechanism.

doi: 10.1007/BF02730074
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1976GU17      Lett.Nuovo Cim. 15, 369 (1976)

C.Guaraldo, R.Scrimaglio, I.V.Falomkin, R.Mach, F.Nichitiu, G.B.Pontecorvo, Y.A.Shcherbakov, F.Balestra, L.Busso, R.Garfagnini, G.Piragino

On the Energy Dependence of (π-,12C) Backward-Scattering Cross-Section

NUCLEAR REACTIONS 12C(π-, π-), E < 180 MeV; calculated σ(E).

doi: 10.1007/BF02725899
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1976MA11      Nucl.Phys. A258, 513 (1976)


Nuclear Structure Effects in Pion-3He Elastic Scattering

NUCLEAR REACTIONS 3He(π+, π+), (π-, π-), E=97, 154 MeV; calculated σ(θ), polarization. 3H(π+, π0); calculated σ.

doi: 10.1016/0375-9474(76)90487-5
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1976SH23      Nuovo Cim. 31A, 249 (1976)

Y.A.Shcherbakov, T.Angelescu, I.V.Falomkin, M.M.Kulyukin, V.I.Lyashenko, R.Mach, A.Mihul, N.M.Kao, F.Nichitiu, G.B.Pontecorvo, V.K.Sarychieva, M.G.Sapozhnikov, M.Semerdjieva, T.M.Troshev, N.I.Trosheva, F.Balestra, L.Busso, R.Garfagnini, G.Piragino

Elastic Scattering of π±-Mesons on 4He in the Energy Interval (68-208) MeV

NUCLEAR REACTIONS 4He(π+, π+), (π-, π-), E=68-208 MeV; measured σ(E).

doi: 10.1007/BF02729730
Citations: PlumX Metrics

1974MA42      Phys.Lett. 53B, 133 (1974)

R.Mach, F.Nichitiu, Y.A.Scherbakov

Optical Model Analysis of Pion Elastic Scattering by 3He

NUCLEAR REACTIONS 3He(π+, π+), (π-, π-), E=97, 154 MeV; calculated σ(θ).

doi: 10.1016/0370-2693(74)90512-7
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1973MA10      Nucl.Phys. A205, 56 (1973)


The Inclusion of the Fermi Motion in Elastic Pion-Nucleus Scattering Calculations

NUCLEAR REACTIONS 12C, 16O, 4He(π-, π-); calculated σ(E, θ). Optical model.

doi: 10.1016/0375-9474(73)90119-X
Citations: PlumX Metrics

1972MA32      Phys.Lett. 40B, 46 (1972)


Elastic Pion-Nucleus Scattering and the Influence of the Fermi Motion

NUCLEAR REACTIONS 12C(π-, π-), E=69.5, 80, 87.5 MeV; calculated σ(θ); analyzed effects of Fermi motion.

doi: 10.1016/0370-2693(72)90277-8
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1970JA11      Phys.Rev.Lett. 25, 461 (1970)

F.Janouch, R.Mach

Internal Bremsstrahlung in the Pion-Charge-Exchange Reaction and the Reaction Mechanism

NUCLEAR REACTIONS 15C(π+, π0), E=50 MeV; 15N(π-, π0), E=50 MeV; calculated IB spectrum.

doi: 10.1103/PhysRevLett.25.461
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