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NSR database version of April 11, 2024.

Search: Author = W.Gyles

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1995WE05      Phys.Rev. C51, 2575 (1995)

M.Wessler, E.Boschitz, B.Brinkmoller, J.Buhler, H.Garcilazo, W.Gyles, W.List, R.Meier, S.Ritt, R.Tacik, J.A.Konter, D.Gill, S.Mango, D.Renker, B.van den Brandt, G.Wait, V.A.Efimovykh, A.I.Kovalev, A.N.Prokofiev, W.Thiel, B.Blankleider

Polarization Observables in πd(pol) Elastic Scattering: Analyzing powers τ22 and iT11 in the Forward Hemisphere

NUCLEAR REACTIONS 2H(π+, π+), E=100-294 MeV; measured analyzing powers, other observables. Polarized target, two different methods. Model comparison.

doi: 10.1103/PhysRevC.51.2575
Citations: PlumX Metrics


1991PE14      Phys.Lett. 261B, 188 (1991)

F.Perrot-Kunne, R.Bertini, M.Costa, H.Catz, A.Chaumeaux, J.-C.Faivre, E.Vercellin, J.Arvieux, J.Yonnet, B.van den Brandt, D.R.Gill, J.A.Konter, S.Mango, G.D.Wait, E.Boschitz, W.Gyles, W.List, C.Ottermann, R.Tacik, M.Wessler

Measurement of the Analyzing Power in (p-bar)p Elastic Scattering at 439 and 544 MeV/c

NUCLEAR REACTIONS 1H(p-bar, p-bar), E at 439, 544 MeV/c; measured σ(θ), analyzing power vs θ. Model comparison. Polarized target.

doi: 10.1016/0370-2693(91)91348-Y
Citations: PlumX Metrics


1990JA05      Phys.Lett. 238B, 36 (1990)

J.Jaki, B.M.Barnett, H.Clement, W.Gyles, R.R.Johnson, Ch.Joram, W.Kluge, S.Krell, H.Matthay, M.Metzler, D.Renker, R.Tacik, G.J.Wagner, C.A.Wiedner, U.Wiedner

Isospin Mixing of the 1+ Doublet in 12C Determined by Low-Energy Pion Scattering

NUCLEAR REACTIONS 12C(π+, π+'), (π-, π-'), (π+, π+), (π-, π-), E=50 MeV; measured σ(θ). 12C levels deduced isospin mixing features.

doi: 10.1016/0370-2693(90)92096-2
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1990TA24      Phys.Rev. C42, 1841 (1990)

R.Tacik, E.T.Boschitz, W.Gyles, M.Wessler, S.Mango, B.van den Brandt, J.A.Konter, D.R.Gill, P.Weber

Comparison of the Vector Analyzing Power iT11 for π±d Scattering at 180 MeV

NUCLEAR REACTIONS 2H(π+, π+), (π-, π-), E=180 MeV; measured vector analyzing power iT11(θ). Polarized target, magnetic spectrometer.

doi: 10.1103/PhysRevC.42.1841
Citations: PlumX Metrics


1990TA25      Phys.Rev. C42, 1846 (1990)

R.Tacik, E.T.Boschitz, W.Gyles, C.R.Ottermann, M.Wessler, U.Wiedner, H.Garcilazo, R.R.Johnson

Kinematically Complete Measurement of the π+d → π0pp Charge-Exchange Reaction

NUCLEAR REACTIONS 2H(π+, π0p), E=228, 294 MeV; measured σ(θp1, θp2) vs proton momentum. Relativistic Faddeev formalism.

doi: 10.1103/PhysRevC.42.1846
Citations: PlumX Metrics


1989BE31      Phys.Lett. 228B, 531 (1989)

R.Bertini, M.Costa, F.Perrot, H.Catz, A.Chaumeaux, J.Cl.Faivre, E.Vercellin, J.Arvieux, J.Yonnet, B.van den Brandt, J.A.Konter, D.R.Gill, S.Mango, G.D.Wait, E.Boschitz, W.Gyles, W.List, C.Ottermann, R.Tacik, M.Wessler, E.Descroix, J.Y.Grossiord, A.Guichard

Full Angular Distribution of the Analysing Power in (p-bar)p Elastic Scattering at 697 MeV/c

NUCLEAR REACTIONS 1H(p-bar, p-bar), E at 697 MeV/c; measured σ(θ), analyzing power vs θ.

doi: 10.1016/0370-2693(89)90988-X
Citations: PlumX Metrics


1989GA03      Phys.Rev. C39, 942 (1989)

H.Garcilazo, E.T.Boschitz, W.Gyles, W.List, C.R.Ottermann, R.Tacik, M.Wessler

Polarization Observables in πd(pol) Elastic Scattering: Amplitude analysis

NUCLEAR REACTIONS 2H(π, π), E=254, 294 MeV; analyzed polarization observables data; deduced πd helicity amplitudes. Polarized targets, amplitude analysis.

doi: 10.1103/PhysRevC.39.942
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1989TA14      Phys.Rev. C40, 256 (1989)

R.Tacik, E.T.Boschitz, W.Gyles, W.List, C.R.Ottermann, M.Wessler, U.Wiedner, R.R.Johnson

Three-Nucleon Pion Absorption in Carbon

NUCLEAR REACTIONS 12C(π+, 3p), E=130, 180, 228 MeV; measured σ(θ1, θ2, θ3); deduced absorption σ.

doi: 10.1103/PhysRevC.40.256
Citations: PlumX Metrics


1988LI08      Phys.Rev. C37, 1587 (1988)

W.List, E.T.Boschitz, H.Garcilazo, W.Gyles, C.R.Ottermann, R.Tacik, M.Wessler, U.Wiedner, R.R.Johnson

Neutron-Proton Final-State Interaction in πd Breakup: Differential cross section

NUCLEAR REACTIONS 2H(π+, np), E=294 MeV; measured σ(θ(π), θp) vs proton momentum; deduced np-final state interaction role. Kinematically complete experiment.

doi: 10.1103/PhysRevC.37.1587
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1988LI09      Phys.Rev. C37, 1594 (1988)

W.List, E.T.Boschitz, H.Garcilazo, W.Gyles, C.R.Ottermann, R.Tacik, S.Mango, J.A.Konter, B.van den Brandt, G.R.Smith

Neutron-Proton Final-State Interaction in πd Breakup: Vector analyzing power

NUCLEAR REACTIONS 2H(π+, np), E=134-228 MeV; measured iT11(θ) following breakup; deduced final state interaction role. Polarized target.

doi: 10.1103/PhysRevC.37.1594
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1988OT06      Phys.Rev. C38, 2296 (1988)

C.R.Ottermann, E.T.Boschitz, W.Gyles, W.List, R.Tacik, M.Wessler, S.Mango, B.van den Brandt, J.A.Konter, D.R.Gill, G.R.Smith

Polarization Observables in πd(pol) Elastic Scattering: Analyzing powers T20 and τ21

NUCLEAR REACTIONS 2H(π, π), E=256, 294 MeV; measured absolute σ(θ), T20(θ), other observables. Tensor polarized target.

doi: 10.1103/PhysRevC.38.2296
Citations: PlumX Metrics


1988OT07      Phys.Rev. C38, 2310 (1988)

C.R.Ottermann, E.T.Boschitz, H.Garcilazo, W.Gyles, W.List, R.Tacik, M.Wessler, S.Mango, B.van den Brandt, J.A.Konter, E.L.Mathie

Polarization Observables in πd(pol) Elastic Scattering: Analyzing powers τ22 and iT11

NUCLEAR REACTIONS 2H(π, π), E=134-294 MeV; measured iT11, T20, T21, T22 vs θ, other observables. Polarized target, frozen spin mode.

doi: 10.1103/PhysRevC.38.2310
Citations: PlumX Metrics


1988SM05      Phys.Rev. C38, 251 (1988)

G.R.Smith, D.R.Gill, D.Healey, D.Ottewell, G.D.Wait, P.Walden, R.R.Johnson, G.Jones, R.Olszewski, F.M.Rozon, R.Rui, M.E.Sevior, R.P.Trelle, E.L.Mathie, G.Lolos, S.I.H.Naqvi, V.Pafilis, N.R.Stevenson, R.B.Schubank, W.Gyles, C.R.Ottermann, G.S.Kyle

Energy Dependence of T20 and τ21 in πd(pol) Elastic Scattering

NUCLEAR REACTIONS 2H(π, π), E=134-256 MeV; measured tensor analyzing power vs θ; deduced pion absorption role. Tensor polarized target.

doi: 10.1103/PhysRevC.38.251
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1987SM04      Phys.Rev. C35, 2343 (1987)

G.R.Smith, D.R.Gill, D.Healey, D.Ottewell, G.D.Wait, P.Walden, R.R.Johnson, G.Jones, R.Olszewski, F.M.Rozon, R.Rui, M.E.Sevior, R.P.Trelle, E.L.Mathie, G.J.Lolos, C.R.Ottermann, W.Gyles, G.S.Kyle

Measurement of the Tensor Analyzing Power T21 in πd Elastic Scattering

NUCLEAR REACTIONS 2H(π, π), E=180 MeV; measured σ(Ed), T21(θ). Polarized target. Faddeev calculations.

doi: 10.1103/PhysRevC.35.2343
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1986GY01      Phys.Rev. C33, 583 (1986)

W.Gyles, E.T.Boschitz, H.Garcilazo, W.List, E.L.Mathie, C.R.Ottermann, G.R.Smith, R.Tacik, R.R.Johnson

π+d → π+pn Reaction as a Test of Relativistic Faddeev Theories: Differential cross section

NUCLEAR REACTIONS 2H(π+, π+p), E=228, 294 MeV; measured σ(θπ, θp) vs proton momentum; deduced nonconventional dynamics insignificance. Faddeev method.

doi: 10.1103/PhysRevC.33.583
Citations: PlumX Metrics


1986GY02      Phys.Rev. C33, 595 (1986)

W.Gyles, E.T.Boschitz, H.Garcilazo, E.L.Mathie, C.R.Ottermann, G.R.Smith, S.Mango, J.A.Konter, R.R.Johnson

π+d → π+pn Reaction as a Test of Relativistic Faddeev Theories: Vector analyzing power

NUCLEAR REACTIONS 2H(π+, π+p), E=180, 228, 294 MeV; measured vector analysing power iT11(θπ, θp), σ(θπ, θp) vs proton momentum. Relativistic Faddeev method.

doi: 10.1103/PhysRevC.33.595
Citations: PlumX Metrics


1986OT02      Phys.Rev. C33, 1802 (1986)

C.R.Ottermann, E.T.Boschitz, W.Gyles, W.List, R.Tacik, S.Mango, J.A.Konter, B.van den Brandt, G.R.Smith

Measurement of the πd(pol) → pp Reaction at T(π) = 65 MeV

NUCLEAR REACTIONS 2H(π, p), E=65 MeV; measured vector analyzing power vs θ. Vector polarized target. Coupled-channels, Faddeev, perturbation theory calculations.

doi: 10.1103/PhysRevC.33.1802
Citations: PlumX Metrics


1985BA27      Phys.Lett. 156B, 172 (1985)

B.M.Barnett, W.Gyles, R.R.Johnson, R.Tacik, K.L.Erdman, H.W.Roser, D.R.Gill, E.W.Blackmore, S.Martin, C.A.Wiedner, R.J.Sobie, T.E.Drake, J.Alster

Density Distribution Differences of Protons in 16,18O from Ratios of π+ Elastic Scattering Cross Sections

NUCLEAR REACTIONS 16,18O(π+, π+), E=48.3, 62.8 MeV; measured σ(θ), ratios. 18,16O deduced proton density distribution differences.

doi: 10.1016/0370-2693(85)91503-5
Citations: PlumX Metrics


1985GY02      Nucl.Phys. A439, 598 (1985)

W.Gyles, B.M.Barnett, R.Tacik, K.L.Erdman, R.R.Johnson, G.J.Lolos, H.Roser, K.A.Aniol, F.Entezami, E.L.Mathie, D.R.Gill, E.W.Blackmore, C.A.Wiedner, S.Martin, R.J.Sobie, T.E.Drake

Neutron Density Difference Measurements for 26,24Mg and 36,34,32S using Low-Energy Pions

NUCLEAR REACTIONS 36,34,32S(π-, π-), E=48.4 MeV; 26,24Mg(π-, π-), E=43.9 MeV; measured σ(θ) ratios. 36,34,32S, 26,24Mg deduced neutron density differences.

doi: 10.1016/0375-9474(85)90329-X
Citations: PlumX Metrics


1985MA17      Phys.Lett. 154B, 28 (1985)

E.L.Mathie, G.R.Smith, E.T.Boschitz, W.Gyles, C.R.Ottermann, S.Mango, J.A.Konter, A.Matsuyama, R.R.Johnson, R.Olszewski

First Measurement of iT11 in the Pion-Deuteron Breakup Reaction

NUCLEAR REACTIONS 2H(π+, π+p), E=228 MeV; measured σ(θ), iT11(θ), σ(θp, θ(π)) vs proton momentum. Polarized target, kinematically complete experiment.

doi: 10.1016/0370-2693(85)91561-8
Citations: PlumX Metrics


1985OT04      Phys.Rev. C32, 928 (1985)

C.R.Ottermann, E.T.Boschitz, W.Gyles, W.List, R.Tacik, R.R.Johnson, G.R.Smith, E.L.Mathie

Large Angle πd Scattering in the Region of the (3, 3) Resonance

NUCLEAR REACTIONS 2H(π+, π+), E=124-324 MeV; measured σ(θ). Comparison with Faddeev calculation.

doi: 10.1103/PhysRevC.32.928
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1985TA14      Phys.Rev. C32, 1335 (1985)

R.Tacik, E.T.Boschitz, W.Gyles, W.List, C.R.Ottermann

Measurement of Three Protons in Coincidence following Absorption of 228 MeV π+ in Carbon

NUCLEAR REACTIONS C(π+, 3p), E=228 MeV; measured ppp-coin, σ(θ1, θ2, θ3), σ(θ1, θ2, E2), σ(θ1, θ3, E3); deduced three proton emission associated σ(absorption), reaction mechanism.

doi: 10.1103/PhysRevC.32.1335
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1984MO03      Phys.Rev.Lett. 52, 1203 (1984)

M.A.Moinester, D.R.Gill, J.Vincent, D.Ashery, S.Levenson, J.Alster, A.Altman, J.Lichtenstadt, E.Piasetzky, K.A.Aniol, R.R.Johnson, H.W.Roser, R.Tacik, W.Gyles, B.Barnett, R.J.Sobie, H.P.Gubler

Isospin Dependence of Pion Absorption on Nucleon Pairs at T(π) = 65 MeV

NUCLEAR REACTIONS 3He(π+, 2p), (π-, np), E=65 MeV; measured pp-, pn-coin, σ(θp1, Ep2), σ(θn, Ep); deduced σ(reaction) ratio, isospin dependence.

doi: 10.1103/PhysRevLett.52.1203
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1984SM06      Phys.Rev. C30, 980 (1984)

G.R.Smith, E.L.Mathie, E.T.Boschitz, C.R.Ottermann, W.Gyles, W.List, S.Mango, J.A.Konter, B.van den Brandt, R.Olszewski, R.R.Johnson

Vector Analyzing Power iT11 in the πd → 2p Reaction between 112 and 325 MeV

NUCLEAR REACTIONS 2H(π, 2p), E=112-325 MeV; measured recoil deuteron iT11(θ). Faddeev calculation comparison.

doi: 10.1103/PhysRevC.30.980
Citations: PlumX Metrics


1984SO06      Nucl.Instrum.Methods 219, 501 (1984)

R.J.Sobie, T.E.Drake, B.M.Barnett, K.L.Erdman, W.Gyles, R.R.Johnson, H.W.Roser, R.Tacik, E.W.Blackmore, D.R.Gill, S.Martin, C.A.Wiedner, T.Masterson

The TRIUMF Low Energy Pion Spectrometer and Channel

NUCLEAR REACTIONS 12C(π-, π-'), E=50 MeV; measured σ(E(π')). Low energy pion spectrometer.

doi: 10.1016/0167-5087(84)90221-7
Citations: PlumX Metrics


1983NA18      Phys.Rev. C28, 2548 (1983)

I.Navon, D.Ashery, J.Alster, G.Azuelos, B.M.Barnett, W.Gyles, R.R.Johnson, D.R.Gill, T.G.Masterson

True Absorption and Scattering of 50 Mev Pions

NUCLEAR REACTIONS C, Fe, Bi(π+, π+'), (π-, π-'), (π+, X), E=50 MeV; Li, Nb(π+, π+'), (π+, X), E= 50 MeV; measured σ(θ), transmission; deduced σ(absorption), large σ(π-)/σ(π+).

doi: 10.1103/PhysRevC.28.2548
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1982GI08      Phys.Rev. C26, 1306 (1982)

D.R.Gill, K.L.Erdman, E.W.Blackmore, W.Gyles, B.M.Barnett, C.Oram, R.R.Johnson, T.G.Masterson, N.Grion

Elastic Scattering of 13.9 MeV Positive Pions from 12C

NUCLEAR REACTIONS 12C(π+, π+), E=13.9 MeV; measured σ(θ); deduced absorption parameters. Optical model analysis.

doi: 10.1103/PhysRevC.26.1306
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1980BA45      Phys.Lett. B97, 45 (1980)

B.M.Barnett, W.Gyles, R.R.Johnson, K.L.Erdman, J.Johnstone, J.J.Kraushaar, S.Lepp, T.G.Masterson, E.Rost, D.R.Gill, A.W.Thomas, J.Alster, I.Navon, R.H.Landau

Proton Radii Determinations from the Ratio of π+ Elastic Scattering from 11B and 12C

NUCLEAR REACTIONS 12C, 11B(π+, π+), E=38.6, 47.7 MeV; measured σ(θ). 12C, 11B deduced rms charge radii differences.

doi: 10.1016/0370-2693(80)90543-2
Citations: PlumX Metrics


1979JO04      Can.J.Phys. 57, 775 (1979)

R.R.Johnson, T.Marks, T.G.Masterson, B.Bassalleck, K.L.Erdman, W.Gyles, D.Gill, C.Sabev

Elastic Scattering of 29 MeV Negative Pions from 208Pb

NUCLEAR REACTIONS 208Pb(π-, π-), E=29 MeV; measured σ(θ).

doi: 10.1139/p79-109
Citations: PlumX Metrics


1979JO08      Phys.Rev.Lett. 43, 844 (1979)

R.R.Johnson, T.Masterson, B.Bassalleck, W.Gyles, T.Marks, K.L.Erdman, A.W.Thomas, D.R.Gill, E.Rost, J.J.Kraushaar, J.Alster, C.Sabev, J.Arvieux, M.Krell

Neutron Radii Determinations from the Ratio of π- Elastic Scattering From 12,13C and 16,18O

NUCLEAR REACTIONS 12,13C(π-, π-), E=29.2-49.5 MeV; 16,18O(π-, π-), E=29.2 MeV; measured σ(θ). 13C, 18O deduced neutron radii relative to 12C, 16O. Optical model analysis.

doi: 10.1103/PhysRevLett.43.844
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