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NSR database version of April 11, 2024.

Search: Author = W.B.Cottingame

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1987CO17      Phys.Rev. C36, 230 (1987)

W.B.Cottingame, K.G.Boyer, W.J.Braithwaite, S.J.Greene, C.J.Harvey, R.J.Joseph, D.B.Holtkamp, C.F.Moore, J.J.Kraushaar, R.J.Peterson, R.A.Ristinen, J.R.Shepard, G.R.Smith, R.L.Boudrie, N.S.P.King, C.L.Morris, J.Piffaretti, H.A.Thiessen

Inelastic Pion Scattering from 12C

NUCLEAR REACTIONS 12C(π+, π+'), (π-, π-'), E=100-291 MeV; measured σ(θ); deduced σ. 12C levels deduced isospin mixing effects. DWIA analysis.

doi: 10.1103/PhysRevC.36.230
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1987DH01      Phys.Rev. C35, 1148 (1987)

K.S.Dhuga, G.R.Burleson, J.A.Faucett, R.L.Boudrie, W.B.Cottingame, S.J.Greene, C.L.Morris, Z.F.Wang, J.W.McDonald, C.F.Moore, S.Mordechai, A.L.Williams, P.A.Seidl, M.A.Bryan, S.Nanda, S.J.Seestrom-Morris, J.D.Zumbro

Sensitivity of Large-Angle Pion Elastic Scattering to Medium Modifications

NUCLEAR REACTIONS 12C, 16O(π+, π+), E=100-240 MeV; measured σ(θ); deduced model parameter modifications. Optical model.

doi: 10.1103/PhysRevC.35.1148
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1987GI04      Phys.Rev. C35, 1334 (1987)

R.Gilman, H.T.Fortune, J.D.Zumbro, C.M.Laymon, G.R.Burleson, J.A.Faucett, W.B.Cottingame, C.L.Morris, P.A.Seidl, C.F.Moore, L.C.Bland, R.R.Kiziah, S.Mordechai, K.S.Dhuga

Mass Dependence of Pion Double Charge Exchange

NUCLEAR REACTIONS 40,44Ca(π+, π-), E=163, 210 MeV; 56Fe, 58Ni(π-, π+), E=164 MeV; 56Fe(π+, π-), E=100-292 MeV; 80Se(π+, π-), E=100-190 MeV; 90Zr(π+, π-), E=164, 211 MeV; 118Sn(π+, π-), E=165, 212 MeV; measured σ(θ=5°); deduced reaction mechanism. 44Ti, 56Ni, 56Cr, 58Fe, 80Kr, 90Mo, 118Te deduced nonanalog, double analog transition differences.

doi: 10.1103/PhysRevC.35.1334
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1987MO25      Phys.Rev. C36, 1950 (1987)

S.Mordechai, C.Harvey, W.B.Cottingame, P.A.Seidl, C.F.Moore, L.C.Bland, M.Carchidi, H.T.Fortune, S.J.Seestrom-Morris, C.L.Morris

Inelastic Pion Scattering to Low-Lying Excited States of 44Ca

NUCLEAR REACTIONS 44Ca(π+, π+'), (π-, π-'), E=180 MeV; measured σ(θ), missing mass spectrum. 44Ca levels deduced neutron, proton matrix elements. DWIA analysis.

doi: 10.1103/PhysRevC.36.1950
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1986BL07      Phys.Rev.Lett. 57, 543 (1986)

C.L.Blilie, D.Dehnhard, D.B.Holtkamp, S.J.Seestrom-Morris, S.K.Nanda, W.B.Cottingame, D.Halderson, C.L.Morris, C.F.Moore, P.A.Seidl, H.Ohnuma, K.Maeda

Measurement of Isospin Mixing in 4He and Its Implications for Charge-Symmetry Breaking

NUCLEAR REACTIONS 4He(π+, π+'), (π-, π-'), E=180 MeV; measured σ(E(π), θ(π)); deduced σ(π+)/σ(π-). 4He deduced very weak 1- state isospin mixing. DWIA analysis.

doi: 10.1103/PhysRevLett.57.543
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1986BU13      Nucl.Instrum.Methods Phys.Res. A247, 327 (1986)

G.R.Burleson, W.B.Cottingame, K.S.Dhuga, J.A.Faucett, C.P.Fontenla, J.F.Amann, R.L.Boudrie, S.J.Greene, C.L.Morris, N.Tanaka, Z.F.Wang, D.Yusnukis, M.Brown, R.R.Kiziah, E.C.Milner, C.F.Moore, S.Mordechai, D.Oakley, P.A.Seidl, C.L.Blilie, D.Dehnhard, S.Nanda, S.J.Seestrom-Morris, J.D.Zumbro, K.Maeda

A Large-Angle Pion-Nucleus Scattering Facility for EPICS at LAMPF

NUCLEAR REACTIONS 12C(π+, π+), E=162 MeV; 16O(π-, π-), E=114 MeV; measured σ(θ), θ=115°-180°. Energetic pion channel, spectrometer.

doi: 10.1016/0168-9002(86)91314-8
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1985DH01      Phys.Rev. C32, 2208 (1985)

K.S.Dhuga, G.R.Burleson, J.A.Faucett, R.L.Boudrie, W.B.Cottingame, S.J.Greene, C.L.Morris, N.Tanaka, Z.F.Wang, S.Nanda, D.Dehnhard, J.D.Zumbro, S.Mordechai, C.F.Moore, D.J.Ernst

Large-Angle Elastic Scattering of π+ and π- from 16O at 114 MeV

NUCLEAR REACTIONS 16O(π+, π+), (π-, π-), E=114 MeV; measured σ(θ); deduced large σ(π+)/σ(π-) differences. First-, second-order optical model calculations.

doi: 10.1103/PhysRevC.32.2208
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1984AU04      Phys.Rev. D29, 2435 (1984)

I.P.Auer, W.R.Ditzler, D.Hill, K.Imai, H.Spinka, R.Stanek, K.Toshioka, D.Underwood, R.Wagner, A.Yokosawa, E.W.Hoffman, J.J.Jarmer, G.R.Burleson, W.B.Cottingame, S.J.Greene, S.Stuart

Measurement of Δσ(L) and C(LL)=(L, L;0, 0) in Proton-Proton Scattering between 300 and 800 MeV

NUCLEAR REACTIONS 1H(polarized p, p), E=300-800 MeV; measured total σ dependence on spin correlation parameter; deduced resonance structure in 1D2, 3F3 partial waves.

doi: 10.1103/PhysRevD.29.2435
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1984BO02      Phys.Rev. C29, 182 (1984)

K.G.Boyer, W.J.Braithwaite, W.B.Cottingame, S.J.Greene, L.E.Smith, C.F.Moore, C.L.Morris, H.A.Thiessen, G.S.Blanpied, G.R.Burleson, J.F.Davis, J.S.McCarthy, R.C.Minehart, C.A.Goulding

Pion Elastic and Inelastic Scattering from 40,42,44,48Ca and 54Fe

NUCLEAR REACTIONS 40,42,44,48Ca, 54Fe(π+, π+'), (π-, π-'), E=116, 118, 292.5 MeV; measured σ(E(π)), σ(θ). 40,42,44,48Ca, 54Fe level deduced neutron density rms radii. DWIA analysis.

doi: 10.1103/PhysRevC.29.182
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1984GE06      Phys.Rev. C30, 952 (1984)

D.F.Geesaman, R.D.Lawson, B.Zeidman, G.C.Morrison, A.D.Bacher, C.Olmer, G.R.Burleson, W.B.Cottingame, S.J.Greene, R.L.Boudrie, C.L.Morris, R.A.Lindgren, W.H.Kelly, R.E.Segel, L.W.Swenson

Quenching of Isoscalar Spin-Flip Strength in 54Fe

NUCLEAR REACTIONS 54Fe(π+, π+'), (π-, π-'), E=162 MeV; measured σ(θ), σ(E(π)). 54Fe levels deduced isoscalar, isovector strengths.

doi: 10.1103/PhysRevC.30.952
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1984GI05      Phys.Rev. C29, 2395 (1984)

R.Gilman, H.T.Fortune, K.S.Dhuga, P.H.Kutt, L.C.Bland, R.R.Kiziah, C.F.Moore, P.A.Seidl, C.L.Morris, W.B.Cottingame

Energy Dependence of Angular Distributions in the Nonanalog Pion Double-Charge-Exchange Reaction 16O(π+, π-)16Ne(g.s.)

NUCLEAR REACTIONS 16O(π+, π-), E=164 MeV; measured σ(θ); deduced nonanalog double charge exchange reaction mechanism characteristics. Damped Bessel function fit, other data input.

doi: 10.1103/PhysRevC.29.2395
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1984GI09      Phys.Rev. C30, 958 (1984)

R.Gilman, H.T.Fortune, L.C.Bland, R.R.Kiziah, C.F.Moore, P.A.Seidl, C.L.Morris, W.B.Cottingame

14Be via Pion Double Charge Exchange

NUCLEAR REACTIONS 14C(π-, π+), E=164 MeV; measured σ(E(π)), σ(θ); deduced residual production σ. 14Be deduced tentative mass excess.

doi: 10.1103/PhysRevC.30.958
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1984GI10      Phys.Rev. C30, 962 (1984)

R.Gilman, H.T.Fortune, L.C.Bland, R.R.Kiziah, C.F.Moore, P.A.Seidl, C.L.Morris, W.B.Cottingame

Nonanalog (π-, π+) Double Charge Exchange on 18O

NUCLEAR REACTIONS 18O(π-, π+), E=140-240 MeV; measured σ(θ), σ(E(π)); deduced double charge exchange reaction characteristics.

doi: 10.1103/PhysRevC.30.962
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1984KI16      Phys.Rev. C30, 1643 (1984)

R.R.Kiziah, M.D.Brown, C.J.Harvey, D.S.Oakley, D.P.Saunders, P.A.Seidl, C.F.Moore, W.B.Cottingame, R.W.Garnett, S.J.Greene, G.A.Luna, G.R.Burleson, D.B.Holtkamp

Pion Inelastic Scattering to the Low-Lying Excited States of 6Li

NUCLEAR REACTIONS 6Li(π+, π+), (π+, π+'), E=100-260 MeV; measured σ(θ); deduced reaction mechanism. 6Li levels deduced form factors. DWIA analysis.

doi: 10.1103/PhysRevC.30.1643
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1984SE14      Phys.Rev. C30, 973 (1984)

P.A.Seidl, M.D.Brown, R.R.Kiziah, C.F.Moore, H.Baer, C.L.Morris, G.R.Burleson, W.B.Cottingame, S.J.Greene, L.C.Bland, R.Gilman, H.T.Fortune

Pion Double Charge Exchange on T = 1 Nuclei

NUCLEAR REACTIONS 26Mg(π+, π-), E=164 MeV; 14C(π+, π-), E=164, 292 MeV; measured missing mass spectra, σ(θ); deduced double charge exchange mass dependence. Other data input.

doi: 10.1103/PhysRevC.30.973
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1984SE15      Phys.Rev. C30, 1076 (1984)

P.A.Seidl, M.D.Brown, R.R.Kiziah, C.F.Moore, H.Baer, C.L.Morris, G.R.Burleson, W.B.Cottingame, S.J.Greene, L.C.Bland, R.Gilman, H.T.Fortune

13C(π+, π-)13O near the Δ33 Resonance

NUCLEAR REACTIONS 13C(π+, π-), E=164, 292 MeV; measured σ(E(π), θ), missing mass spectra.

doi: 10.1103/PhysRevC.30.1076
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1983BU05      Nucl.Phys. B213, 365 (1983)

G.R.Burleson, W.B.Cottingame, S.J.Greene, S.Stuart, E.W.Hoffman, J.J.Jarmer, I.P.Auer, W.R.Ditzler, D.Hill, K.Imai, H.Spinka, R.Stanek, K.Toshioka, D.Underwood, R.Wagner, A.Yokosawa

C(LL) = (L, L;0, 0) Measurements and a Structure due to a P Partial Wave in the pp System

NUCLEAR REACTIONS 1H(polarized p, p), E=300-800 MeV; measured σ(θ), spin correlation parameter vs θ, E; deduced amplitudes.

doi: 10.1016/0550-3213(83)90226-2
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1983CA05      Phys.Rev. C27, 1636 (1983)

J.A.Carr, F.Petrovich, D.Halderson, D.B.Holtkamp, W.B.Cottingame

Stretched Excitations and the Spin-dependent Part of the Pion-nucleon Interaction

NUCLEAR REACTIONS 28Si(π+, π+'), (π-, π-'), E=162 MeV; 16O(π+, π+'), (π-, π-'), E=164 MeV; calculated σ(θ). Impulse approximation, spin-orbit term, energy dependent t-matrix.

doi: 10.1103/PhysRevC.27.1636
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1983DI02      Phys.Rev. D27, 680 (1983)

W.R.Ditzler, D.Hill, K.Imai, H.Shimizu, H.Spinka, R.Stanek, K.Toshioka, D.Underwood, R.Wagner, A.Yokosawa, G.R.Burleson, W.B.Cottingame, S.J.Greene, J.J.Jarmer, R.H.Jeppesen

Measurement of the Difference in pp Total Cross Sections for Pure Parallel and Antiparallel Transverse-Spin State (Δσ(T)) at T(p) = 487, 639, and 791 MeV

NUCLEAR REACTIONS 1H(polarized p, p), E=487, 639, 791 MeV; measured transverse spin state σ(total) difference. Polarized frozen spin target.

doi: 10.1103/PhysRevD.27.680
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1983GR07      Phys.Rev. C27, 2375 (1983)

S.J.Greene, W.B.Cottingame, G.R.Burleson, L.C.Bland, R.Gilman, H.T.Fortune, C.L.Morris, D.B.Holtkamp, C.F.Moore

Diffractive Angular Distribution for 16O(π+, π-)16Ne(g.s.)

NUCLEAR REACTIONS 16O(π+, π-), E=164 MeV; measured σ(θ). 16Ne deduced nonanalog transition characteristics. Eikonal fit.

doi: 10.1103/PhysRevC.27.2375
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1983SE06      Phys.Rev.Lett. 50, 1106 (1983)

P.A.Seidl, R.R.Kiziah, M.K.Brown, C.F.Moore, C.L.Morris, H.Baer, S.J.Greene, G.R.Burleson, W.B.Cottingame, L.C.Bland, R.Gilman, H.T.Fortune

Observation of Analog and Nonanalog Transitions in the Reaction 56Fe(π+, π-)56Ni

NUCLEAR REACTIONS 56Fe(π+, π-), E=140-290 MeV; measured σ(E(π-)), σ(θ) vs E; deduced analog, nonanalog transition mass dependence. 56Ni deduced double analog, nonanalog transition relative strengths.

doi: 10.1103/PhysRevLett.50.1106
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1982GR02      Phys.Rev. C25, 924 (1982)

S.J.Greene, D.B.Holtkamp, W.B.Cottingame, C.F.Moore, G.R.Burleson, C.L.Morris, H.A.Thiessen, H.T.Fortune

Interference Effects in Pion Double Charge Exchange

NUCLEAR REACTIONS 16,18O(π+, π-), E=80-292 MeV; measured σ(θ) vs E; deduced direct double analog, two-step nonanalog amplitude interference.

doi: 10.1103/PhysRevC.25.924
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1982GR28      Phys.Rev. C 25, 927 (1982)

S.J.Greene, W.J.Braithwaite, D.B.Holtkamp, W.B.Cottingame, C.F.Moore, G.R.Burleson, G.S.Blanpied, A.J.Viescas, G.H.Daw, C.L.Morris, H.A.Thiessen

Systematics in pion double charge exchange

NUCLEAR REACTIONS 9Be, 12,13C, 16,18O, 24,26Mg, 32S, 209Bi(π+, π-), E=100-300 MeV; measured reaction products; deduced σ(θ), systematics. LAMPF meson facility.

doi: 10.1103/PhysRevC.25.927
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1982MO01      Phys.Lett. 108B, 172 (1982)

C.L.Morris, W.B.Cottingame, S.J.Greene, C.J.Harvey, C.F.Moore, D.B.Holtkamp, S.J.Seestrom-Morris, H.T.Fortune

Indication of Δ-Hole Configurations in 12C(15.11 MeV)

NUCLEAR REACTIONS 12C(π+, π+'), (π-, π-'), E=100, 180, 230 MeV; measured σ(θ, E(π)). 12C level deduced isobar-hole configuration component. DWIA, Cohen-Kurath transition densities, Fermi momentum corrections.

doi: 10.1016/0370-2693(82)91168-6
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1982MO12      Phys.Rev. C25, 3218 (1982)

C.L.Morris, H.T.Fortune, L.C.Bland, R.Gilman, S.J.Greene, W.B.Cottingame, D.B.Holtkamp, G.R.Burleson, C.F.Moore

Target Mass Dependence of Isotensor Double Charge Exchange: Evidence for deltas in nuclei

NUCLEAR REACTIONS 16O, 28Si, 40Ca(π+, π-), E=164 MeV; measured σ(E(π-)) at θ=5°; deduced mass dependence of σ, isobar components in wave function. 28S, 40Ti deduced mass excess.

doi: 10.1103/PhysRevC.25.3218
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1982MO25      Phys.Rev. C26, 2561 (1982)

C.F.Moore, C.J.Harvey, C.L.Morris, W.B.Cottingame, S.J.Greene, D.B.Holtkamp, H.T.Fortune

12C(π, π') to Giant Dipole Resonance Region

NUCLEAR REACTIONS 12C(π+, π+'), (π-, π-'), E=180 MeV; measured σ(θ, E(π)). 12C deduced dominant GDR, spin-flip giant resonance excitation.

doi: 10.1103/PhysRevC.26.2561
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1981BO26      Phys.Rev. C24, 598 (1981)

K.G.Boyer, W.B.Cottingame, L.E.Smith, S.J.Greene, C.F.Moore, J.S.McCarthy, R.C.Minehart, J.F.Davis, G.R.Burleson, G.Blanpied, C.A.Goulding, H.A.Thiessen, C.L.Morris

Pion Inelastic Scattering to the Low-Lying States in 42,44,48Ca: Determination of the neutron and proton multipole matrix elements

NUCLEAR REACTIONS 42,44,48Ca(π+, π+), (π+, π+'), (π-, π-), (π-, π-'), E=180 MeV; measured σ(θ). 40,42,48Ca levels deduced neutron, proton multipole matrix elements, M(E2), M(E3). DWIA analysis, collective, microscopic model from factors.

doi: 10.1103/PhysRevC.24.598
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1981MO07      Phys.Lett. 99B, 387 (1981)

C.L.Morris, R.L.Boudrie, J.Piffaretti, W.B.Cottingame, W.J.Braithwaite, S.J.Greene, C.J.Harvey, D.B.Holtkamp, C.F.Moore, S.J.Seestrom-Morris

Measurements of Isospin Mixing Between the 1+ Doublet in 12C using Pion Inelastic Scattering

NUCLEAR REACTIONS 12C(π+, π+'), (π-, π-'), E=100, 116, 130 MeV; measured σ(E(π)); deduced charge dependent matrix element. 12C levels deduced isospin mixing. Model independent method.

doi: 10.1016/0370-2693(81)90554-2
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1981MO17      Phys.Rev. C24, 231 (1981)

C.L.Morris, K.G.Boyer, C.F.Moore, C.J.Harvey, K.J.Kallianpur, I.B.Moore, P.A.Seidl, S.J.Seestrom-Morris, D.B.Holtkamp, S.J.Greene, W.B.Cottingame

Pion Inelastic Scattering to Low-Lying States in 12C and 40Ca

NUCLEAR REACTIONS 12C, 40Ca(π+, π+'), (π-, π-'), E=180 MeV; measured σ(θ). DWIA analysis.

doi: 10.1103/PhysRevC.24.231
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1980BU07      Phys.Rev. C21, 1452 (1980)

G.R.Burleson, G.S.Blanpied, J.Davis, J.S.McCarthy, R.C.Minehart, C.Goulding, C.L.Morris, H.A.Thiessen, W.B.Cottingame, S.Greene, C.F.Moore

Quasielastic Scattering of Pions from 12C and 40,44,48Ca

NUCLEAR REACTIONS 12C, 40,44,48Ca(π+, π+n), (π+, π+p), (π-, π-n), (π-, π-p), E=291 MeV; measured σ(θ(π+), E(π+)), σ(θ(π-), E(π-)). 12C, 40,44,48Ca deduced participating nucleon number. Monte Carlo calculation, multiple scattering, Fermi gas model.

doi: 10.1103/PhysRevC.21.1452
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1980BU15      Phys.Rev. C22, 1180 (1980)

G.R.Burleson, G.S.Blanpied, G.H.Daw, A.J.Viescas, C.L.Morris, H.A.Thiessen, S.J.Greene, W.J.Braithwaite, W.B.Cottingame, D.B.Holtkamp, I.B.Moore, C.F.Moore

Isospin Quintets in the 1p and s-d Shells

NUCLEAR REACTIONS 9Be, 12,13C, 16O, 24Mg, 32S(π+, π-), E=180 MeV; measured σ(θ), Q. 12O, 16Ne, 24Si, 32Ar deduced masses. Isobaric multiplet mass equation fit.

doi: 10.1103/PhysRevC.22.1180
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1980CO18      Phys.Rev.Lett. 45, 1828 (1980)

W.B.Cottingame, D.B.Holtkamp

Energy Dependence of Pion Elastic Scattering from Nuclei across the (3, 3) Resonance

NUCLEAR REACTIONS 12C(π+, π+), E=148, 162, 226 MeV; 12C(π-, π-), E=120, 150, 162, 180, 200, 226, 230, 260, 280 MeV; 28Si(π+, π+), (π-, π-), E=130, 162, 180, 226 MeV; analyzedσ(θ); deduced energy dependence across (3, 3) resonance. Parametrization of pion-nucleon collision energy.

doi: 10.1103/PhysRevLett.45.1828
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1980MO20      Phys.Rev.Lett. 45, 1233 (1980)

C.L.Morris, H.A.Thiessen, W.J.Braithwaite, W.B.Cottingame, S.J.Greene D.B.Holtkamp, I.B.Moore, C.F.Moore, G.R.Burleson, G.S.Blanpied, G.H.Daw, A.J.Viescas

Observation of a Double Analog State in the Reaction 209Bi(π+, π-)209At

NUCLEAR REACTIONS 209Bi(π+, π-), E=292 MeV; measured σ(θ) vs Q. 209At deduced IAS state. Semiclassical model analysis.

doi: 10.1103/PhysRevLett.45.1233
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1979GR18      Phys.Lett. 88B, 62 (1979)

S.J.Greene, W.J.Braithwaite, D.B.Holtkamp, W.B.Cottingame, C.F.Moore, C.L.Morris, H.A.Thiessen, G.R.Burleson, G.S.Blanpied

Studies of the Pion Double-Charge Exchange Reaction 18O(π+, π-)18Ne

NUCLEAR REACTIONS 18O(π+, π-), E=292 MeV; measured σ(θ, E(π-)).

doi: 10.1016/0370-2693(79)90114-X
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1979MO15      Phys.Lett. 86B, 31 (1979)

C.L.Morris, J.Piffaretti, H.A.Thiessen, W.B.Cottingame, W.J.Braithwaite, R.J.Joseph, I.B.Moore, D.B.Holtkamp, C.J.Harvey, S.J.Greene, C.F.Moore, R.L.Boudrie, R.J.Peterson

Observation of Isospin Mixing in 12C Near 19.5 MeV Excitation

NUCLEAR REACTIONS 12C(π+, π+), (π-, π-'), E=162 MeV; measured σ(Eπ+, θ), σ(Eπ-, θ). 12C deduced isospin mixed doublet near 19.5 MeV.

doi: 10.1016/0370-2693(79)90614-2
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