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Search: Author = R.Mach

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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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)

R.Mach

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
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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
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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)

R.Mach

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
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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)

R.Mach

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

R.Mach

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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