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NSR database version of April 27, 2024.

Search: Author = M.Thies

Found 22 matches.

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1991OD02      Nucl.Phys. A530, 605 (1991)

R.P.Oderkerk, M.Thies

Model Dependence of the Impulse Approximation

NUCLEAR REACTIONS ⁴⁰Ca(polarized p, p), E=500 MeV; calculated σ(θ), P(θ), spin rotation parameter vs θ.

doi: 10.1016/0375-9474(91)90771-W
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1988OL02      Phys.Rev. C37, 2665 (1988)

R.Olszewski, R.Baran, A.Hofmann, S.Krell, H.W.Ortner, J.Orzechowsky, G.Schmidtlein, F.Vogler, W.List, G.R.Smith, D.Dehnhard, M.Thies

Medium Effects in (π, π'γ) Angular Correlations on ¹²C(2⁺)

NUCLEAR REACTIONS ¹²C(π, π'γ), E=116, 140, 162, 180, 226 MeV; measured π(γ)-coin, πγ(θ). Isobar-hole model.

doi: 10.1103/PhysRevC.37.2665
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1988TA21      Phys.Rev. C38, 2230 (1988)

T.Takaki, M.Thies

One-Nucleon Knockout by Pions and Deltas

NUCLEAR REACTIONS ¹⁶O(π⁺, π⁺'p), (π^-, π^-'p), E=240 MeV; calculated σ(E(π'), θ(π'), θp); deduced reaction mechanism. Isobar-hole model.

doi: 10.1103/PhysRevC.38.2230
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1987GO05      Phys.Rev. C35, 631 (1987)

M.Gouweloos, M.Thies

Reaction ¹⁶O(π⁺, pp)¹⁴N at 60 MeV: Testing the quasi-deuteron mechanism

NUCLEAR REACTIONS ¹⁶O(π⁺, 2p), E=60 MeV; analyzed σ(θ₁, θ₂), form factors; deduced absorbing pair polarization, quasideuteron absorption strength. DWIA.

doi: 10.1103/PhysRevC.35.631
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1987VA15      Phys.Lett. 191B, 227 (1987)

G.Van der Steenhoven, H.P.Blok, M.Thies, P.J.Mulders

Charge-Exchange Processes in the Quasi-Elastic (e, e'p) and (e, e'n) Reactions

NUCLEAR REACTIONS ¹²C(e, e'p), (e, e'n), E=313, 443 MeV; calculated quasielastic σ; deduced channel differences. Lane equations.

doi: 10.1016/0370-2693(87)90244-9
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1986GO11      Nucl.Phys. A455, 602 (1986)

M.Gouweloos, M.Thies

Low Energy Pion Absorption and the Quasi-Deuteron Mechanism

NUCLEAR REACTIONS ¹²C, ¹⁶O(π^-, 2n), E at rest; analyzed nn-coin data; deduced quasideuteron mechanism dominance. PWIA, DWIA analyses.

doi: 10.1016/0375-9474(86)90453-7
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1986OL07      Phys.Rev.Lett. 57, 2143 (1986)

R.Olszewski, R.Baran, A.Hofmann, S.Krell, H.W.Ortner, J.Orzechowski, G.Schmidtlein, F.Vogler, G.R.Smith, W.List, D.Dehnhard, M.Thies

Test of the Δ-Hole Model through the Energy Dependence of (π, π'γ) Angular Correlations on ¹²C

NUCLEAR REACTIONS ¹²C(π, π'γ), E=116, 140, 162, 180, 226 MeV; measured πγ(θ), πγ(φ); deduced isobar-nucleus dynamics role. NaI detectors. Isobar-hole model.

doi: 10.1103/PhysRevLett.57.2143
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1985KA30      Nucl.Phys. A446, 657 (1985)

T.Karapiperis, M.Kobayashi, M.Thies

On the Treatment of the Non-Resonant Background in Delta-Hole Calculations

NUCLEAR REACTIONS ⁴He(π^-, π^-), E=75, 180, 260 MeV; ¹⁶O(π⁺, π⁺), E=79, 163, 240 MeV; calculated σ(θ); deduced small medium corrections role. Fermi motion, binding, Pauli blocking effects.

doi: 10.1016/0375-9474(85)90636-0
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1985OH09      Ann.Phys.(New York) 163, 420 (1985)

K.Ohta, M.Thies, T.-S.H.Lee

Study of the Two-Nucleon Mechanism of Pion Absorption in Nuclei

NUCLEAR REACTIONS ^3,4He, ¹²C(π⁺, p), E ≈ 50-250 MeV; calculated σ(Ep), absorption σ(E), σ(θ) vs proton momentum, σ(θ, Ep); deduced pion absorption mechanism.

doi: 10.1016/0003-4916(85)90385-9
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1984OL04      Nucl.Phys. A429, 477 (1984)

J.G.J.Olivier, M.Thies, J.H.Koch

Anomalous Widths in Pionic Atoms and the Problem of s-Wave Repulsion

ATOMIC PHYSICS, Mesic-Atoms ¹⁴⁸Nd, ¹⁸¹Ta; analyzed pionic level shift, width data; deduced nuclear interior s-wave repulsion.

doi: 10.1016/0375-9474(84)90693-6
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1984TH03      Nucl.Phys. A412, 326 (1984)

M.Thies

Pion-Gamma Angular Correlations: A way to separate reaction contributions in pion-nucleus scattering

NUCLEAR REACTIONS ¹²C(π⁺, π⁺'γ), E=162 MeV; calculated σ(θ(π')), φ(π'); deduced transition, spin densities coupling contributions, relation to (e, e') longitudinal, transverse form factors. Isobar-doorway model.

doi: 10.1016/0375-9474(84)90686-9
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1984VO04      Phys.Lett. 134B, 161 (1984)

F.Vogler, R.Olszewski, M.Meyer, E.L.Mathie, G.R.Smith, E.Boschitz, S.Chakravarti, D.Dehnhard, M.Thies

Measurement of the ¹²C(π, π'γ)¹²C(2⁺, T = 0; 4.44 MeV) Angular Correlations: A test of the isobar-hole model

NUCLEAR REACTIONS ¹²C(π⁺, π⁺'), E=162 MeV; measured σ(θ), σ(θπ, θγ); deduced isobar-hole model validity.

doi: 10.1016/0370-2693(84)90662-2
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1983BA24      Nucl.Phys. A399, 451 (1983)

M.Baumgartner, H.P.Gubler, G.R.Plattner, W.D.Ramsay, H.W.Roser, I.Sick, P.Zupranski, J.P.Egger, M.Thies

Inclusive π⁴He Scattering and the πN Interaction in the Nuclear Medium

NUCLEAR REACTIONS ⁴He(π, π'), E=90-320 MeV; measured σ(E, E(π'), θ); deduced total inelastic, absorption σ; deduced medium corrections. Isobar-hole formalism.

doi: 10.1016/0375-9474(83)90258-0
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1983HI07      Phys.Rev. C28, 785 (1983)

M.Hirata, F.Lenz, M.Thies

Delta-Nucleon and Pion-Nucleus Interactions

NUCLEAR REACTIONS ¹²C(π⁺, π⁺), E=162, 226 MeV; calculated σ(θ). ¹⁶O(π⁺, π⁺'p), (π^-, π^-'p), E=240 MeV; calculated σ ratio; deduced possible ΔT=1 excitation enhancements, quasifree isospin ratio violations. Isobar-nucleon interactions, knockout reactions.

doi: 10.1103/PhysRevC.28.785
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1982BA19      Phys.Lett. 112B, 35 (1982)

M.Baumgartner, H.P.Gubler, G.R.Plattner, W.D.Ramsay, H.W.Roser, I.Sick, P.Zupranski, J.P.Egger, M.Thies

Quasi-Free π-⁴He Scattering and π-N Medium Corrections

NUCLEAR REACTIONS ⁴He(π⁺, π⁺'), E=90-320 MeV; ⁴He(π^-, π^-'), E=120, 220 MeV; measured σ(θ, E(π')); deduced medium corrections to pion-nucleon scattering operator. Isobar-hole formalism.

doi: 10.1016/0370-2693(82)90900-5
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1982LE15      Ann.Phys.(New York) 140, 266 (1982)

F.Lenz, M.Thies, Y.Horikawa

Isobar-Hole Description of Pion-Nucleus Inelastic Scattering

NUCLEAR REACTIONS ¹²C(π⁺, π⁺'), E=116, 162, 226, 100, 140, 180, 230 MeV; analyzed σ(θ); deduced basic excitation mechanisms. T-matrix, isobar-hole formalism.

doi: 10.1016/0003-4916(82)90162-2
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1982TH08      Nucl.Phys. A382, 434 (1982)

M.Thies

Quasi-Elastic Pion Scattering on ¹⁶O: A comparison between the Δ-hole approach and a standard first-order calculation

NUCLEAR REACTIONS ¹⁶O(π⁺, π⁺'), E=115 MeV; calculated σ(θ, E(π')). Modified DWIA, quasielastic process, isobar-hole model.

doi: 10.1016/0375-9474(82)90355-4
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1980HO24      Nucl.Phys. A345, 386 (1980)

Y.Horikawa, M.Thies, F.Lenz

The Δ-Nucleus Spin-Orbit Interaction in π-Nucleus Scattering

NUCLEAR REACTIONS ⁴He, ¹²C, ¹⁶O(π, π), E=50-260 MeV; calculated σ(θ), σ(absorption); deduced spin-orbit potential parameters. Isobar-hole formalism.

doi: 10.1016/0375-9474(80)90346-2
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1979HU02      Phys.Rev. C20, 273 (1979)

J.Hufner, M.Thies

Pion-Nucleus Scattering and Absorption as a Solution of the Boltzmann Equation

NUCLEAR REACTIONS ⁴He, ¹²C, ¹⁶O(π⁺, π⁺), (π⁺, π⁰), (π⁺, π^-), E=50-300 MeV; calculated σ. Boltzmann equation, pion-nucleus optical potential, pion-nucleon σ as dynamical input.

doi: 10.1103/PhysRevC.20.273
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1976TH08      Phys.Lett. 63B, 39 (1976)

M.Thies

Why Does the First-Order π-Nucleus Optical Potential Work in the Region of the (33) Resonance (Question)

NUCLEAR REACTIONS ¹²C(π, π), E=180 MeV; calculated σ(θ).

doi: 10.1016/0370-2693(76)90463-9
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1976TH09      Phys.Lett. 63B, 43 (1976)

M.Thies

An Improved π-¹²C Optical Potential at 50 MeV

NUCLEAR REACTIONS ¹²C(π, π), E=50 MeV; calculated (θ).

doi: 10.1016/0370-2693(76)90464-0
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1975HU13      Phys.Lett. 59B, 215 (1975)

J.Hufner, H.J.Pirner, M.Thies

The Pion-Induced Knock-Out Reaction ¹²C(π±, πN)¹¹C

NUCLEAR REACTIONS ¹²C(π⁺, πX), (π^-, πX), E < 400 MeV; calculated σ(E), reaction ratio.

doi: 10.1016/0370-2693(75)90029-5
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