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NSR database version of April 11, 2024.

Search: Author = P.L.Walden

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2003OP01      Phys.Rev.Lett. 91, 212302 (2003)

A.K.Opper, E.Korkmaz, D.A.Hutcheon, R.Abegg, C.A.Davis, R.W.Finlay, P.W.Green, L.G.Greeniaus, D.V.Jordan, J.A.Niskanen, G.V.O'Rielly, T.A.Porcelli, S.D.Reitzner, P.L.Walden, S.Yen

Charge Symmetry Breaking in np → dπ0

NUCLEAR REACTIONS 1H(n, π0), E=279.5 MeV; measured σ(θ), forward-backward asymmetry; deduced charge symmetry breaking. Comparison with model predictions.

doi: 10.1103/PhysRevLett.91.212302
Citations: PlumX Metrics


2002HU06      Nucl.Phys. A705, 367 (2002)

G.M.Huber, G.J.Lolos, Z.Papandreou, J.Hovdebo, S.I.H.Naqvi, D.F.Ottewell, P.L.Walden, G.Jones, X.Aslanoglou

The (π+, pd) and (π+, dd) Reactions on Light Nuclei at 100 and 165 MeV Incident Pion Energies

NUCLEAR REACTIONS 6Li, 12C(π+, pd), (π+, 2d), E=100, 165 MeV; measured particle spectra, coincidences, σ(θ), total σ; deduced reaction mechanism features. Comparison with model predictions.

doi: 10.1016/S0375-9474(02)00678-4
Citations: PlumX Metrics


2000OP01      Nucl.Phys. A663-664, 505c (2000)

A.K.Opper, E.G.Auld, R.M.Churchman, C.A.Davis, R.W.Finlay, P.W.Green, L.G.Greeniaus, D.A.Hutcheon, D.V.Jordan, E.J.Korkmaz, J.A.Niskanen, G.V.O'Rielly, T.Porcelli, S.D.Reitzner, P.L.Walden, S.Yen

Charge Symmetry Breaking in the Reaction np → dπ0

NUCLEAR REACTIONS 1H(n, π0), E=279.5 MeV; measured deuteron spectra, forward-backward asymmetry.

doi: 10.1016/S0375-9474(99)00642-9
Citations: PlumX Metrics


1999HA06      Phys.Rev.Lett. 82, 2258 (1999)

H.Hahn, F.A.Duncan, J.Aclander, D.Ashery, E.G.Auld, D.R.Gill, D.A.Hutcheon, G.Jones, E.Korkmaz, S.Maytal-Beck, M.A.Moinester, J.A.Niskanen, D.Ottewell, A.Rahav, S.Ram, M.Sevior, P.L.Walden, R.Weiss

Analyzing Powers and Partial Wave Decomposition of pn → pp(1S0- at Low Energies

NUCLEAR REACTIONS 2H(polarized p, 2pπ-), E=353, 403, 440 MeV; measured pion, proton spectra, spectator momentum distributions. 1n(polarized p, pπ-)E=353, 403, 440 MeV; deduced analyzing powers for quasifree reaction. Partial wave analysis.

doi: 10.1103/PhysRevLett.82.2258
Citations: PlumX Metrics


1999PL01      Phys.Rev. C59, 3208 (1999)

R.G.Pleydon, W.R.Falk, M.Benjamintz, S.Yen, P.L.Walden, R.Abegg, D.Hutcheon, C.A.Miller, M.Hartig, K.Hicks, G.V.O'Rielly, R.Shyam

Inclusive Measurements of the pp → pnπ+ Reaction at 420 and 500 MeV

NUCLEAR REACTIONS 1H(polarized p, pπ+), E=420, 500 MeV; measured pions σ(θ), Ay(θ); deduced σ. Partial wave analysis. Final state interaction model.

doi: 10.1103/PhysRevC.59.3208
Citations: PlumX Metrics


1998BE38      Phys.Rev. C58, 964 (1998)

M.Benjamintz, W.R.Falk, J.R.Campbell, A.Green, P.G.Roos, P.L.Walden, S.Yen, A.G.Ling, E.G.Auld, E.Korkmaz, M.A.Punyasena

Investigation of the 12C(p(pol), dπ+)11B Reaction in the Quasifree Region

NUCLEAR REACTIONS 12C(polarized p, dπ+), E=370, 500 MeV; measured excitation energy spectra, σ(Ex, θ(d), θ(π)), analyzing powers; deduced spectroscopic factors. DWIA, PWIA calculations.

doi: 10.1103/PhysRevC.58.964
Citations: PlumX Metrics


1998DU07      Phys.Rev.Lett. 80, 4390 (1998)

F.Duncan, H.Hahn, C.Aclander, D.Ashery, E.G.Auld, D.R.Gill, D.A.Hutcheon, G.Jones, E.Korkmaz, S.Maytal-Beck, M.A.Moinester, J.A.Niskanen, D.Ottewell, A.Rahav, S.Ram, M.Sevior, P.L.Walden, R.Weiss

Differential Cross Section of the pn → pp(1S0- Reaction Extracted from pd → pppπ-

NUCLEAR REACTIONS 2H(polarized p, 2pπ-), E=353, 403, 440 MeV; measured spectator momentum distributions; deduced σ(θ(π), M(pp)) for pn reaction. Comparison with pion absorption data.

doi: 10.1103/PhysRevLett.80.4390
Citations: PlumX Metrics


1997HU14      Nucl.Phys. A624, 623 (1997)

G.M.Huber, G.J.Lolos, Z.Papandreou, J.C.Cormier, E.L.Mathie, S.I.H.Naqvi, D.F.Ottewell, P.L.Walden, G.Jones, R.P.Trelle, X.Aslanoglou, J.L.Visschers

Multinucleon Contributions to the 12C(π+, pp) Reaction at 100 and 165 MeV Incident Pion Energies

NUCLEAR REACTIONS 12C(π+, 2p), E=100, 165 MeV; measured proton production associated total, differential σ; deduced reaction mechanisms. Monte Carlo simulations.

doi: 10.1016/S0375-9474(97)00390-4
Citations: PlumX Metrics


1996LO04      Phys.Rev. C54, 211 (1996)

G.J.Lolos, G.M.Huber, E.L.Mathie, S.I.H.Naqvi, Z.Papandreou, D.F.Ottewell, P.L.Walden, G.Jones, X.Aslanoglou, J.L.Visschers

Role of Quasideuteron Absorption in the 6Li(π+, pp) Reaction at T(π+) = 100, 165 MeV

NUCLEAR REACTIONS 6Li(π+, 2p), E=100, 165 MeV; measured σ(θ, E), σ(θ); deduced two-, three-nucleon absorption total σ. Enriched 6Li target. Monte Carlo analysis.

doi: 10.1103/PhysRevC.54.211
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1995PA22      Phys.Rev. C51, R2862 (1995)

Z.Papandreou, G.M.Huber, G.J.Lolos, J.C.Cormier, E.L.Mathie, S.I.H.Naqvi, D.F.Ottewell, R.Tacik, P.L.Walden, G.Jones, R.P.Trelle, X.Aslanoglou, D.L.Humphrey

6Li(π+, pp)4He(g.s.) Reaction at 100 and 165 MeV Incident Pion Energies

NUCLEAR REACTIONS 6Li(π+, 2p), E=100, 165 MeV; measured σ(E, θ1, θ2); deduced σ(E).

doi: 10.1103/PhysRevC.51.R2862
Citations: PlumX Metrics


1994FU06      Phys.Rev. C50, 1561 (1994)

K.M.Furutani, W.R.Falk, H.Guan, J.R.Campbell, F.A.Duncan, P.L.Walden, S.Yen, G.M.Huber, R.D.Bent, G.J.Lolos, E.Korkmaz, A.Trudel, A.Celler

Exclusive Pion Production from Few Nucleon Systems in the Region of the Δ(1232) Resonance

NUCLEAR REACTIONS 3,4He(polarized p, π+), E=240-507 MeV; measured σ(θ), analyzing power vs θ; deduced Coulomb effects role. Phenomenological pp → dπ+ model.

doi: 10.1103/PhysRevC.50.1561
Citations: PlumX Metrics


1991FU05      Phys.Rev. C44, 1691 (1991)

K.M.Furutani, W.R.Falk, F.A.Duncan, P.L.Walden, S.Yen, G.M.Huber, R.D.Bent, G.J.Lolos, E.Korkmaz

Analyzing Powers for the 3He(p(pol), π)4He Reaction in the Region of the Δ(1232) Resonance

NUCLEAR REACTIONS 3He(polarized p, π+), E=300-507 MeV; measured σ(θ), analyzing power vs θ. Phenomenological model analysis.

doi: 10.1103/PhysRevC.44.1691
Citations: PlumX Metrics


1990PA03      Phys.Rev. C41, R1339 (1990)

Z.Papandreou, G.J.Lolos, G.M.Huber, J.C.Cormier, S.I.H.Naqvi, D.F.Ottewell, P.L.Walden, G.Jones

Composite Particle Emission following Negative Pion Absorption on 12C at T(π-) = 165 MeV

NUCLEAR REACTIONS 12C(π-, 2p), (π-, pd), (π-, 2d), E=165 MeV; measured σ(θ1, θ2); deduced π- absorption mechanism.

doi: 10.1103/PhysRevC.41.R1339
Citations: PlumX Metrics


1989PA13      Phys.Lett. 227B, 25 (1989)

Z.Papandreou, G.J.Lolos, G.M.Huber, J.C.Cormier, S.I.H.Naqvi, D.F.Ottewell, P.L.Walden, G.Jones

The 12C(π-, pp)X Reaction at 165 MeV

NUCLEAR REACTIONS 12C(π-, 2pX), E=165 MeV; measured σ(θp1, θp2); deduced reaction mechanism.

doi: 10.1016/0370-2693(89)91278-1
Citations: PlumX Metrics


1989PO11      Phys.Rev.Lett. 63, 1792 (1989)

C.Ponting, D.A.Hutcheon, M.A.Moinester, P.L.Walden, D.R.Gill, R.R.Johnson, F.Duncan, G.Sheffer, P.Weber, V.Sossi, A.Feltham, M.Hanna, R.Olszewski, M.Pavan, F.M.Rozon, M.Sevior, D.Ashery, R.P.Trelle, H.Hahn, B.Mayer

Analyzing-Power Measurement in p(pol)n → π-pp(1S0): Pion absorption by quark clusters ( Question )

NUCLEAR REACTIONS 2H(polarized p, 2pπ-), E=400 MeV; measured analyzing power vs (θ(π)); deduced nucleon-nucleon interaction short range component role.

doi: 10.1103/PhysRevLett.63.1792
Citations: PlumX Metrics


1988HU02      Phys.Rev. C37, 215 (1988)

G.M.Huber, G.J.Lolos, Z.Papandreou, K.H.Hicks, P.L.Walden, S.Yen, R.D.Bent, G.T.Emery, E.G.Auld, F.A.Duncan, W.R.Falk

16O(p(pol), π+)17O(*) at Incident Proton Energies of 250, 354, and 489 MeV

NUCLEAR REACTIONS 16O(polarized p, π+), E=250, 354, 489 MeV; measured σ(θ), analyzing power vs θ; deduced similarities to nucleon-nucleon interation pion production.

doi: 10.1103/PhysRevC.37.215
Citations: PlumX Metrics


1988HU04      Phys.Rev. C37, 1161 (1988)

G.M.Huber, G.J.Lolos, R.D.Bent, K.H.Hicks, P.L.Walden, S.Yen, X.Aslanoglou, E.G.Auld, W.R.Falk

Comparison of 13C(p, π-)14O(*) and 13C(p, π+)14C(*) Reactions in the Region of the Δ1232 Resonance

NUCLEAR REACTIONS 13C(p, π-), (p, π+), E=250, 354, 489 MeV; measured σ(E(π)), σ(θ); deduced reaction energy dependence, isobar resonance role.

doi: 10.1103/PhysRevC.37.1161
Citations: PlumX Metrics


1988HU06      Phys.Rev. C37, 2051 (1988)

G.M.Huber, G.J.Lolos, K.H.Hicks, P.L.Walden, S.Yen, R.D.Bent, W.R.Falk, E.G.Auld

Proton-Induced Inclusive Pion Production from Light Nuclei in the Region of the Δ1232 Resonance

NUCLEAR REACTIONS 13C(p, π-X), (p, π+X), 16O(polarized p, π+X), E=250, 354, 489 MeV; measured inclusive σ(θ(π), E(π)), analyzing power vs missing four momentum squared; deduced comparisons with elementary pp → dπ+ reaction, implications for the pion production mechanism.

doi: 10.1103/PhysRevC.37.2051
Citations: PlumX Metrics


1988HU11      Phys.Rev. C38, 1304 (1988)

G.M.Huber, G.J.Lolos, K.M.Furutani, W.R.Falk, R.D.Bent, K.H.Hicks, P.L.Walden, S.Yen

7Li(p(pol), π-)8B(*) and 7Li(p(pol), π+)8Li(*) Reactions in the Region of the Δ(1232) Resonance

NUCLEAR REACTIONS 7Li(polarized p, π-), (polarized p, π+), E=280, 354, 489 MeV; measured σ(θ), analyzing power; deduced comparison with pp → dπ+ reaction, reaction mechanism.

doi: 10.1103/PhysRevC.38.1304
Citations: PlumX Metrics


1987HU08      Phys.Rev. C36, 1058 (1987)

G.M.Huber, G.J.Lolos, E.L.Mathie, Z.Papandreou, K.H.Hicks, P.L.Walden, S.Yen, X.Aslanoglou, E.G.Auld, W.R.Falk

Energy Dependence of the 12C(p, π+)13C(*) Reaction in the Region of the Δ1232 Resonance

NUCLEAR REACTIONS 12C(p, π+), E=250, 354, 489 MeV; measured σ(θ, E); deduced reaction mechanism.

doi: 10.1103/PhysRevC.36.1058
Citations: PlumX Metrics


1987HU12      Phys.Rev. C36, 2683 (1987)

G.M.Huber, G.J.Lolos, Z.Papandreou, K.H.Hicks, P.L.Walden, S.Yen, E.G.Auld, F.A.Duncan, R.D.Bent, W.R.Falk

7Li(p(pol), π+)8Li(*) at Incident Proton Energies of 250, 354, and 489 MeV

NUCLEAR REACTIONS 7Li(polarized p, π+), E=250, 354, 498 MeV; measured σ(θ), analyzing power vs θ, σ(E(π)); deduced pion production mechanism.

doi: 10.1103/PhysRevC.36.2683
Citations: PlumX Metrics


1986FA03      Phys.Rev. C33, 988 (1986)

W.R.Falk, E.G.Auld, G.Giles, G.Jones, G.J.Lolos, W.Ziegler, P.L.Walden

Pion Production Cross Sections and Analyzing Powers in the Inclusive 12C(p, π+)X Reaction at 400 and 450 MeV

NUCLEAR REACTIONS 12C(polarized p, π+), E=400, 450 MeV; measured σ(θ, E(π+)), analyzing power vs θ, E(π+). Quasi-free model.

doi: 10.1103/PhysRevC.33.988
Citations: PlumX Metrics


1986MC11      Nucl.Phys. A456, 629 (1986)

B.J.McParland, E.G.Auld, P.Couvert, G.L.Giles, G.Jones, W.Ziegler, X.Aslanoglou, G.M.Huber, G.J.Lolos, S.I.H.Naqvi, Z.Papandreou, D.R.Gill, D.F.Ottewell, P.L.Walden

A Study of the 6Li(π+,3He)3He Reaction at 60, 80, 100 and 140 MeV Incident Pion Beam Energies

NUCLEAR REACTIONS 6Li(π+,3He), E=60, 80, 100, 140 MeV; measured σ(θ).

doi: 10.1016/0375-9474(86)90079-5
Citations: PlumX Metrics


1985FA08      Phys.Rev. C32, 1972 (1985)

W.R.Falk, E.G.Auld, G.Giles, G.Jones, G.J.Lolos, W.Ziegler, P.L.Walden

Measurements of Cross Sections and Analyzing Powers for the Inclusive pp → pnπ+ Reaction at 400 and 450 MeV

NUCLEAR REACTIONS 1H(polarized p, nπ+), E=400, 450 MeV; measured σ(θ, Eπ), analyzing power vs θ, E(π); deduced np triplet final state interaction.

doi: 10.1103/PhysRevC.32.1972
Citations: PlumX Metrics


1985MC05      Phys.Lett. 156B, 47 (1985)

B.J.McParland, E.G.Auld, P.Couvert, G.L.Giles, G.Jones, W.Ziegler, X.Aslanoglou, G.M.Huber, G.J.Lolos, S.I.H.Naqvi, Z.Papandreou, D.R.Gill, D.F.Ottewell, P.L.Walden

Angular Dependence of the 6Li(π+,3He)3He Reaction at 60 and 80 MeV

NUCLEAR REACTIONS 6Li(π+,3He), E=60, 80 MeV; measured σ(θ).

doi: 10.1016/0370-2693(85)91352-8
Citations: PlumX Metrics


1985ZI04      Phys.Rev. C32, 301 (1985)

W.Ziegler, E.G.Auld, W.R.Falk, G.L.Giles, G.Jones, G.J.Lolos, B.J.McParland, P.L.Walden, D.F.Ottewell

Polarized-Proton-Induced Pion Production on 10B at 200, 225, 250, and 260 MeV Incident Energies

NUCLEAR REACTIONS 10B(polarized p, π+), E=200, 225, 250, 260 MeV; measured σ(θ), analyzing power vs θ, σ(E(π+)).

doi: 10.1103/PhysRevC.32.301
Citations: PlumX Metrics


1984LO08      Nucl.Phys. A422, 582 (1984)

G.L.Lolos, E.G.Auld, G.L.Giles, G.Jones, B.J.McParland, W.Ziegler, D.Ottewell, P.L.Walden

Pion Production from Deuterium Bombarded with Polarized Protons of 277 and 500 MeV

NUCLEAR REACTIONS 2H(polarized p, π+), E=277, 500 MeV; calculated σ(E(π)), recoil triton analyzing power vs θ. Enriched CD2 plastic target.

doi: 10.1016/0375-9474(84)90365-8
Citations: PlumX Metrics


1984LO13      Phys.Rev. C30, 574 (1984)

G.J.Lolos, E.G.Auld, W.R.Falk, G.L.Giles, G.Jones, B.J.McParland, R.B.Taylor, W.Ziegler, P.L.Walden

Polarized-Proton-Induced Exclusive Pion Production in 12C at 200, 216, 225, 237, and 250 MeV Incident Energies

NUCLEAR REACTIONS 12C(polarized p, π+), E=200-250 MeV; measured σ(θ), analyzing power vs θ; deduced isobar excitation role. Microscopic two-nucleon models.

doi: 10.1103/PhysRevC.30.574
Citations: PlumX Metrics


1982AU02      Phys.Rev. C25, 2222 (1982)

E.G.Auld, G.Jones, G.J.Lolos, E.L.Mathie, P.L.Walden, R.B.Taylor

Positive Pion Production from the Bombardment of 9Be with 200, 225, and 250 MeV Polarized Protons

NUCLEAR REACTIONS 9Be(polarized p, π+), E=200-250 MeV; measured A(θ).

doi: 10.1103/PhysRevC.25.2222
Citations: PlumX Metrics


1982LO02      Phys.Rev. C25, 1082 (1982)

G.J.Lolos, E.L.Mathie, P.L.Walden, G.Jones, E.G.Auld, R.B.Taylor

9Be(p(pol), π-)10C Reaction in the 200-250 MeV Proton Energy Range

NUCLEAR REACTIONS 9Be(polarized p, π-), E=200, 225, 250 MeV; measured analyzing power vs θ; deduced structure dependence.

doi: 10.1103/PhysRevC.25.1082
Citations: PlumX Metrics


1982LO03      Phys.Rev. C25, 1086 (1982)

G.J.Lolos, P.L.Walden, E.L.Mathie, G.Jones, E.G.Auld, W.R.Falk, R.B.Taylor

Energy Dependence of the Analyzing Power for the 12C(p(pol), π+)13C Reaction with Polarized Protons of 200 to 250 MeV

NUCLEAR REACTIONS 12C(polarized p, π+), E=200-250 MeV; measured σ(θ), analyzing power vs θ; deduced analyzing power energy, structure dependences.

doi: 10.1103/PhysRevC.25.1086
Citations: PlumX Metrics


1982LO17      Nucl.Phys. A386, 477 (1982)

G.J.Lolos, E.L.Mathie, G.Jones, E.G.Auld, G.Giles, B.McParland, P.L.Walden, W.Ziegler, W.R.Falk

Analyzing Power of the pd → tπ+ Reaction at 305, 330, 375 and 400 MeV

NUCLEAR REACTIONS 2H(polarized p, π+), E=305, 330, 375, 400 MeV; measured σ(E, θ), A(E, θ). Enriched target.

doi: 10.1016/0375-9474(82)90032-X
Citations: PlumX Metrics


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