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Search: Author = J.F.Germond

Found 39 matches.

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1990GE02      J.Phys.(London) G16, 381 (1990)

J.-F.Germond, C.Wilkin

The dp → 3Heπ0 Reaction in Collinear Geometry

NUCLEAR REACTIONS 1H(polarized d, π0), (d, π0), E=0.4-1.2 GeV; calculated unpolarized σ(θ), tensor analyzing power vs E. Collinear geometry, two-body cluster model.

doi: 10.1088/0954-3899/16/3/010
Citations: PlumX Metrics

1990GE10      Nucl.Phys. A518, 308 (1990)

J.-F.Germond, C.Wilkin

The pp → pp(Eta) Reaction Near Threshold

NUCLEAR REACTIONS 1H(p, X), E ≈ threshold; calculated σ(θ), σ, eta production. Isobar excitation model.

doi: 10.1016/0375-9474(90)90552-W
Citations: PlumX Metrics

1989GE02      J.Phys.(London) G15, 437 (1989)

J.-F.Germond, C.Wilkin

The dp → 3He(Eta) Reaction at Threshold

NUCLEAR REACTIONS 2H(p, 3He), E ≈ threshold; calculated eta production form factors; deduced reaction rate.

doi: 10.1088/0954-3899/15/4/007
Citations: PlumX Metrics

1988BE25      Phys.Rev.Lett. 61, 919 (1988)

J.Berger, M.Boivin, A.Boudard, P.Fleury, J.F.Germond, L.Goldzahl, Cl.Kerboul, B.Mayer, F.Plouin, L.Satta, C.Wilkin

Identification of the d + p → 3He + Eta Reaction Very Near Threshold: Cross section and deuteron tensor analyzing power

NUCLEAR REACTIONS 2H(p, 3He), E=threshold; measured Eta production σ(θ), t20.

doi: 10.1103/PhysRevLett.61.919
Citations: PlumX Metrics

1988GE01      J.Phys.(London) G14, 181 (1988)

J.-F.Germond, C.Wilkin

The dp → 3Heπ0 Reaction at Threshold

NUCLEAR REACTIONS 1H(polarized d, π0), E ≈ threshold; analyzed reaction rate, deuteron tensor analyzing power. Two-body cluster model for 3He.

doi: 10.1088/0305-4616/14/2/010
Citations: PlumX Metrics

1987GE06      J.Phys.(London) G13, L259 (1987)

J.-F.Germond, C.Wilkin

On Measuring the D State of 4He

NUCLEAR REACTIONS 4He(π-, 2n), E at rest; calculated pion capture kinematics suitable for D- state estimate. 1H(α, pd), E not given; calculated spectator deuteron tensor polarization role in α- D state.

doi: 10.1088/0305-4616/13/11/002
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1986GE01      Helv.Phys.Acta 59, 188 (1986)

J.-F.Germond, E.Bovet, J.-P.Egger

Analyse en Diffraction de la Diffusion Elastique Pion - 40Ar

NUCLEAR REACTIONS 40Ar(π, π), E=180 MeV; measured σ(θ). 40Ar, 40Ca deduced proton, neutron density ratio. Diffraction theory analysis.

1986GE05      J.Phys.(London) G12, 609 (1986)


Pion-Lithium Scattering in the α-n-p Cluster Model

NUCLEAR REACTIONS 6Li(π+, π+), (π-, π-), E=100-250 MeV; 6Li(π+, π+'), E=100-250 MeV; calculated σ(θ) vs E, vector polarization vs θ. Cluster model.

doi: 10.1088/0305-4616/12/7/010
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1986GE08      Helv.Phys.Acta 59, 1194 (1986)

J.-F.Germond, C.Wilkin

Fast Deuteron Production following Pion Absorption in 4He

NUCLEAR REACTIONS 4He(π-, 2n), E at rest; calculated fast deuteron production σ. Cluster model.

1986GE10      J.Phys.(London) G12, 1379 (1986)

J.-F.Germond, C.Wilkin

Fast Deuteron Production following Pion Absorption in 4He

NUCLEAR REACTIONS 4He(π-, d), E=70-430 MeV; calculated branching ratios, σ(Eπ, θd). Cluster model.

doi: 10.1088/0305-4616/12/12/016
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1986KE18      Phys.Lett. 181B, 28 (1986)

C.Kerboul, A.Boudard, L.Antonuk, J.Arvieux, J.Berger, R.Bertini, M.Boivin, J.M.Durand, A.Stetz, J.Tinsley, J.Yonnet, Nguyen Van Sen, Ye Yanlin, B.Mayer, J.Cameron, C.Lapointe, D.M.Sheppard, J.F.Germond, C.Wilkin

Deuteron Tensor Analyzing Power for the Collinear d(pol)p → 3Heπ0 Reaction at Intermediate Energies

NUCLEAR REACTIONS, MECPD 1H(polarized d, π0), E=500-2200 MeV; measured residual nucleus σ(θ), tensor analyzing power vs E. 3He deduced nucleon pair pion capture isospin dependence.

doi: 10.1016/0370-2693(86)91248-7
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1985GE03      Phys.Rev. C32, 983 (1985)

J.-F.Germond, M.B.Johnson, J.A.Johnstone

Diffraction Theory Analysis of Pion Elastic Scattering from the Calcium Isotopes

NUCLEAR REACTIONS 40,42,44,48Ca(π+, π+), (π-, π-), E=180 MeV; analyzed σ(θ); deduced pion-isobar resonance dynamics. Coulomb corrected impact parameters. 42,44,48Ca deduced proton density relative to 40Ca. Diffraction theory.

doi: 10.1103/PhysRevC.32.983
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1985GE04      Phys.Rev. C32, 1087 (1985)

J.-F.Germond, E.Bovet, J.-P.Egger, G.S.Blanpied, C.S.Mishra, B.M.Preedom

Diffraction Analysis of Pion Elastic Scattering from 40Ar

NUCLEAR REACTIONS 40Ar(π+, π+), (π-, π-), E=180 MeV; measured σ(θ). 40Ar, 40Ca deduced neutron, proton density ratios. Liquid natural Ar target. Diffraction theory analysis, other data input.

doi: 10.1103/PhysRevC.32.1087
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1985GE06      J.Phys.(London) G11, 1131 (1985)

J-.F.Germond, C.Wilkin

Coherent Pion Production and the Excited States of 5He

NUCLEAR REACTIONS 4He(p, π+), E=800 MeV; calculated σ(θ) vs residual nucleus excitation, σ(θ); deduced production mechanism. Cluster model, 3He(p, π+) reaction input, separable nucleon-nucleus potentials.

doi: 10.1088/0305-4616/11/10/010
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1985GO08      Phys.Rev. C31, 1563 (1985)

F.Goetz, E.Bovet, J.-P.Egger, J.-F.Germond, P.Gretillat, C.Lunke, E.Schwarz, L.E.Antonuk, G.S.Blanpied, B.M.Preedom, J.-P.Perroud

Measurement of Pion-Induced Deuteron Breakup at 150 MeV

NUCLEAR REACTIONS 2H(π-, π-p), (π-, π-n), E=150 MeV; measured σ(θn, θ(π)), σ(θ(π), E(π)); deduced nucleon production σ ratio. Impulse approximation. Kinematically complete experiment.

doi: 10.1103/PhysRevC.31.1563
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1984AN11      Nucl.Phys. A420, 435 (1984)

L.E.Antonuk, D.Bovet, E.Bovet, J.-P.Egger, J.-F.Germond, F.Goetz, P.Gretillat, C.Lunke, E.Schwarz, K.Masutani, T.Takaki

Elastic and Inelastic Pion Scattering on 12C and 13C at 100 MeV

NUCLEAR REACTIONS 12,13C(π+, π+), (π-, π-), (π+, π+'), (π-, π-'), E=100 MeV; measured σ(θ), σ(E(π)). Isobar-hole model analysis.

doi: 10.1016/0375-9474(84)90667-5
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1984BI08      Phys.Rev. C30, 739 (1984)

L.Bimbot, T.Hennino, J.C.Jourdain, Y.Le Bornec, F.Reide, N.Willis, J.F.Germond

Comparison of (3He, π-) and (3He, π+) Exclusive Reactions on 7Li and 12C

NUCLEAR REACTIONS 7Li, 12C(3He, π-), (3He, π+), E=235 MeV; measured σ(θ), σ(E(π)); deduced σ(π-)/σ(π+), reaction mechanism.

doi: 10.1103/PhysRevC.30.739
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1984GE05      J.Phys.(London) G10, 745 (1984)

J.-F.Germond, C.Wilkin

Pion Production in Exclusive 3He-Induced Reactions

NUCLEAR REACTIONS 3He(α, π+), E=250-450 MeV; 3He(3He, π+), E=300-600 MeV; analyzed coherent pion production σ(θ). Residual nucleus cluster decomposition, 3He(p, π+) data input.

doi: 10.1088/0305-4616/10/6/010
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1982BI06      Phys.Lett. 114B, 311 (1982)

L.Bimbot, M.P.Combes, J.C.Jourdain, Y.Le Bornec, F.Reide, A.Willis, N.Willis, J.-F.Germond, C.Wilkin

Experimental Study of Coherent Pion Production in 4He(3He, π+)7Li and a Test of the Reaction Mechanism

NUCLEAR REACTIONS 4He(3He, π+), E=266.5, 280.5 MeV; measured σ(Eπ), σ(θ); deduced coherent pion production mechansim.

doi: 10.1016/0370-2693(82)90351-3
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1982GE08      Helv.Phys.Acta 55, 248 (1982)

J.-F.Germond, C.Wilkin

Fission Induite par les Pions

NUCLEAR REACTIONS 3,4He, 6Li(3He, π+), E=266.5, 280.5 MeV; calculated residual production σ(θ). Pion absorption by α-cluster in target projectile system.

1981GE07      Phys.Lett. 106B, 449 (1981)

J.-F.Germond, C.Wilkin

Coherent Pion Production in 3He - 3He Collisions

NUCLEAR REACTIONS 3He(3He, π+), E=282 MeV; calculated σ(θ). Coherent pion production model.

doi: 10.1016/0370-2693(81)90254-9
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1981GE08      Helv.Phys.Acta 54, 321 (1981)

J.-F.Germond, R.J.Lombard, D.Waxman, C.Wilkin

Corrections Eikonales pour un Potential Spin-Orbite

NUCLEAR REACTIONS 12C(polarized p, p), E=800 MeV; calculated polarization, spin rotation parameters. Spin-orbit potential eikonal corrections.

1981GR09      Nucl.Phys. A364, 270 (1981)

P.Gretillat, J.-P.Egger, J.-F.Germond, C.Lunke, E.Schwarz, C.Perrin, B.M.Preedom

Study of π+ and π- Elastic Scattering from 40Ca and 48Ca in the Region of the πN(3, 3) Resonance

NUCLEAR REACTIONS 40,48Ca(π+, π+), (π-, π-), E=130, 180, 230 MeV; measured σ(θ). 48Ca deduced neutron, proton rms radius difference. Black disc analysis, eikonal framework.

doi: 10.1016/0375-9474(81)90571-6
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1981WA20      Phys.Rev. C24, 578 (1981)

D.Waxman, C.Wilkin, J.-F.Germond, R.J.Lombard

Eikonal Corrections for Spin-Orbit Potentials

NUCLEAR REACTIONS 12C(p, p), (polarized p, p), E=800 MeV; calculated σ(θ), polarization, spin rotation parameters. Eikonal approximations, modified Wallace approach.

doi: 10.1103/PhysRevC.24.578
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1980GE07      Phys.Rev. C22, 1622 (1980)

J.-F.Germond, M.B.Johnson

Analytical Approximation to Pion-Nucleus Scattering Near (3, 3) Resonance

NUCLEAR REACTIONS 40Ca(π, π), E=130, 180, 241 MeV; calculated σ(θ); 40Ca(π-, π-), (π+, π+), E=130, 180, 241 MeV; calculated σ(θ(π-))/ σ(θ(π+)). Analytic approximation.

doi: 10.1103/PhysRevC.22.1622
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1979CH05      Phys.Lett. 81B, 143 (1979)

B.Chabloz, R.Corfu, J.-P.Egger, J.-F.Germond, P.Gretillat, C.Lunke, J.Piffaretti, E.Schwarz, C.Perrin, J.E.Bolger, J.Zichy

Large Angle Pion-Carbon Scattering Near the πN(3, 3) Resonance

NUCLEAR REACTIONS 12C(π+, π+), (π+, π+'), (π-, π-), E=162 MeV; measured σ(θ). Phenomenological scattering amplitude analysis near (3, 3) resonance.

doi: 10.1016/0370-2693(79)90508-2
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1979GE03      J.Phys.(London) G5, L127 (1979)

J.-F.Germond, C.Wilkin

Coulomb Effects in Inelastic Pion-Nucleus Scattering

NUCLEAR REACTIONS 12C(π+, π+'), (π-, π-'), E=162 MeV; calculated σ(θ). Eikonal model for Coulomb distortion of nuclear transitions.

doi: 10.1088/0305-4616/5/8/004
Citations: PlumX Metrics

1979GE07      Ann.Phys.(New York) 121, 285 (1979)

J.-F.Germond, C.Wilkin

Coulomb Corrections to Elastic Pion-Nucleus Scattering in the Eikonal Model

NUCLEAR REACTIONS 12C(π+, π+), (π-, π-), E=148, 162, 226 MeV; 40Ca(π+, π+), (π-, π-), E=115, 130, 163, 241 MeV; calculated σ(θ). Eikonal model, Coulomb corrections.

doi: 10.1016/0003-4916(79)90099-X
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1978GE13      Helv.Phys.Acta 51, 88 (1978)


Pion-Nucleus Scattering in the Alpha-Particle Model

NUCLEAR REACTIONS 16O(π-, π-), E=163 MeV; 40Ca(π-, π-), E=130 MeV; calculated σ(θ) using α-particle model, Glauber theory.

1978GE18      Helv.Phys.Acta 51, 510 (1978)

J.-F.Germond, C.Wilkin

Coulomb Corrections to Elastic Pion-Nucleus Scattering in the Eikonal Model

NUCLEAR REACTIONS 40Ca, 12C(π+, π+), (π-, π-), E not given; calculated scattering amplitudes. Eikonal model, Coulomb corrections.

1978PE11      Helv.Phys.Acta 51, 380 (1978)

C.Perrin, R.Corfu, J.-P.Egger, J.-F.Germond, P.Gretillat, C.Lunke, J.Piffaretti, E.Schwarz

Observation of the 15.1 MeV (1+) State in Carbon-12 by π+ Inelastic Scattering Near the πN (3, 3) Resonance

NUCLEAR REACTIONS 12C(π+, π+'), E=148 MeV; measured σ. 12C deduced level, J, π.

1977AL04      J.Phys.(London) G3, 7 (1977)

B.S.Aladashvili, J.-F.Germond, V.V.Glagolev, M.S.Nioradze, T.Siemiarczuk, J.Stepaniak, V.N.Streltsov, C.Wilkin, P.Zielinski

Final-State Interaction in the High-Energy Proton-Deuteron Break-up Reaction

NUCLEAR REACTIONS 2H(p, 2p); calculated σ.

doi: 10.1088/0305-4616/3/1/005
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1977GE04      Phys.Lett. 68B, 229 (1977)

J.-F.Germond, C.Wilkin

Why Are the Diffraction Minima in π+ and π- Scattering from 12C So Different (Question)

NUCLEAR REACTIONS 12C(π+, π+), (π-, π-), E=148 MeV; calculated σ(θ).

doi: 10.1016/0370-2693(77)90276-3
Citations: PlumX Metrics

1975GE02      Nucl.Phys. A237, 477 (1975)

J.F.Germond, C.Wilkin

Pion-Carbon Scattering in the α-Particle Model

NUCLEAR REACTIONS 12C(π-, π-), E=100-150 MeV; calculated σ.

doi: 10.1016/0375-9474(75)90413-3
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1975GE07      Nucl.Phys. A249, 457 (1975)

J.-F.Germond, C.Wilkin

Pion-Calcium Scattering in the α-Particle Model

NUCLEAR REACTIONS 40Ca(π, π), E=205, 215 MeV; calculated σ.

doi: 10.1016/0375-9474(75)90668-5
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1975GE10      Lett.Nuovo Cim. 13, 605 (1975)

J.F.Germond, C.Wilkin

Exchange Current Effects in Pion Double Charge Exchange from 4He

NUCLEAR REACTIONS 4He(π, X); calculated exchange current effects.

doi: 10.1007/BF02745898
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1973BE47      Phys.Lett. 46B, 289 (1973)

J.Beiner, J.F.Germond

Root Mean Square Radius of Optical Potential in π- - 12C Elastic Scattering

NUCLEAR REACTIONS 12C(π-, π-); calculated rms radius of optical potential.

doi: 10.1016/0370-2693(73)90120-2
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1973GE11      Nucl.Phys. A216, 157 (1973)

J.F.Germond, J.P.Amiet

Comparative Analysis of Pion-Nucleus Elastic and Inelastic Scattering

NUCLEAR REACTIONS 4He, 12C, 16O(π-, π-), E=170, 180, 230, 260 MeV; calculated σ(θ). 12C calculated levels.

doi: 10.1016/0375-9474(73)90524-1
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1971JA17      Helv.Phys.Acta 44, 502 (1971)

S.Jaccard, J.-F.Germond, J.Piffaretti, J.Weber

Polarisation des Neutrons Emis par la Reaction 12C(d, n)13N Sous 20° Lab. Pour E=2.75 MeV et 3 MeV

NUCLEAR REACTIONS 12C(d, n), E=2.71, 2.96 MeV; measured P(n).

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