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NSR database version of April 11, 2024.

Search: Author = H.W.Roser

Found 18 matches.

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1990VI05      Nucl.Phys. A517, 509 (1990)

C.J.Virtue, K.A.Aniol, F.E.Entezami, M.D.Hasinoff, D.Horvath, H.W.Roser, B.C.Robertson

Photon Asymmetry in Radiative Muon Capture on Calcium

NUCLEAR REACTIONS Ca(μ-, ν), E at rest; measured photon asymmetry; deduced g(p)/g(A). Natural target.

doi: 10.1016/0375-9474(90)90215-8
Citations: PlumX Metrics


1987WI01      Phys.Rev. C35, 708 (1987)

U.Wienands, N.Hessey, B.M.Barnett, F.M.Rozon, H.W.Roser, A.Altman, R.R.Johnson, D.R.Gill, G.R.Smith, C.A.Wiedner, D.M.Manley, B.L.Berman, H.J.Crawford, N.Grion

Elastic and Inelastic Scattering of 50-MeV Pions from 28Si and 30Si

NUCLEAR REACTIONS 28,30Si(π+, π+), (π+, π+'), (π-, π-), (π-, π-'), E=50 MeV; measured σ(θ); deduced model parameters. 28,30Si levels deduced neutron, proton transition matrix element ratio. Enriched targets. Optical model analyses.

doi: 10.1103/PhysRevC.35.708
Citations: PlumX Metrics


1986AN11      Phys.Rev. C33, 1714 (1986)

K.A.Aniol, A.Altman, R.R.Johnson, H.W.Roser, R.Tacik, U.Wienands, D.Ashery, J.Alster, M.A.Moinester, E.Piasetzky, D.R.Gill, J.Vincent

Pion Absorption of 3He at T(π) = 62.5 and 82.8 MeV

NUCLEAR REACTIONS 3He(π+, pn), (π-, pn), E=62.5, 82.8 MeV; measured σ(Ep, θp). 3He(π-, n), E=62.5, 82.8 MeV; measured breakup σ; deduced three-body absorption σ, reaction mechanism.

doi: 10.1103/PhysRevC.33.1714
Citations: PlumX Metrics


1986JO05      Helv.Phys.Acta 59, 185 (1986)

J.Jourdan, M.Baumgartner, S.Burzynski, P.Egelhof, A.Klein, M.A.Pickar, G.R.Plattner, W.D.Ramsay, H.W.Roser, I.Sick, J.Torre

P-D(pol) Radiative Capture and the 3He D-State

NUCLEAR REACTIONS 1H(polarized d, γ), E=29.2, 45.3 MeV; measured tensor analyzing power vs θ; deduced reaction mechanism. 3He deduced E1 contribution, D-state component. Faddeev calculations.


1986JO06      Nucl.Phys. A453, 220 (1986)

J.Jourdan, M.Baumgartner, S.Burzynski, P.Egelhof, R.Henneck, A.Klein, M.A.Pickar, G.R.Plattner, W.D.Ramsay, H.W.Roser, I.Sick, J.Torre

p-d(pol) Radiative Capture and the 3He D-State

NUCLEAR REACTIONS 1H(polarized d, γ), E=29.2, 45.3 MeV; measured tensor analyzing power A(θ=90°).

doi: 10.1016/0375-9474(86)90011-4
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


1985JO05      Phys.Lett. 162B, 269 (1985)

J.Jourdan, M.Baumgartner, S.Burzynski, P.Egelhof, A.Klein, M.A.Pickar, G.R.Plattner, W.D.Ramsay, H.W.Roser, I.Sick, J.Torre

1H + 2H(pol) Radiative Capture and the 3He D-State

NUCLEAR REACTIONS 1H(polarized d, γ), E=29.2, 45.3 MeV; measured tensor analyzing power for θ=96°; deduced 3He D-state role. Faddeev calculations.

doi: 10.1016/0370-2693(85)90920-7
Citations: PlumX Metrics


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
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


1984SO13      Phys.Rev. C30, 1612 (1984)

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

Elastic and Inelastic Scattering of 50 MeV Pions from 12C, 32S, and 34S

NUCLEAR REACTIONS 12C, 32,34S(π+, π+), (π+, π+'), (π-, π-), (π-, π-'), E=50 MeV; measured σ(θ); deduced neutron, proton matrix elements. Optical, distorted wave model analyses.

doi: 10.1103/PhysRevC.30.1612
Citations: PlumX Metrics


1984TA03      Phys.Rev.Lett. 52, 1276 (1984)

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

Sensitivity of Low-Energy π± Inelastic Scattering

NUCLEAR REACTIONS 26Mg(π+, π+'), (π-, π-'), E=50 MeV; measured σ(θ); deduced neutron, proton deformation sensitivity. 26Mg level deduced neutron to proton matrix element ratio, σ(π+)/σ(π-) vs (β(p)/β(n)). DWIA.

doi: 10.1103/PhysRevLett.52.1276
Citations: PlumX Metrics


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
Citations: PlumX Metrics


1983BA60      Helv.Phys.Acta 56, 980 (1983)

M.Baumgartner, J.Jourdan, G.R.Plattner, W.D.Ramsay, H.W.Roser, I.Sick

3He D-State from d(pol) + p → 3He + γ Reaction

NUCLEAR REACTIONS 1H(polarized d, γ), E=45.3 meV; measured capture γ-spectra, tensor analyzing power for (θ=90°).


1983BU08      Nucl.Phys. A399, 230 (1983)

S.Burzynski, M.Baumgartner, H.P.Gubler, J.Jourdan, H.O.Meyer, G.R.Plattner, H.W.Roser, I.Sick, K.-H.Mobius

Accurate Determination of the 17O-16O + n Coupling Constant and Spectroscopic Factor

NUCLEAR REACTIONS 16O(17O, 17O), E=22 MeV; measured σ(θ); deduced d5/2 neutron coupling constant. 17O deduced absolute S. Exact finite-range DWBA analysis. 17O(e, e), E not given; analyzed data; deduced neutron wave function.

doi: 10.1016/0375-9474(83)90605-X
Citations: PlumX Metrics


1983GR05      Nucl.Phys. A398, 445 (1983)

W.Gruebler, V.Konig, P.A.Schmelzbach, F.Sperisen, B.Jenny, R.E.White, F.Seiler, H.W.Roser

Investigation of the Three-Nucleon System by pd Elastic Scattering with Polarized Protons and Deuterons

NUCLEAR REACTIONS 2H(polarized p, p), E=8.5, 10, 12, 14, 16.5, 19, 22.7 MeV; measured σ(θ, E), A(θ, E); 1H(polarized d, d), E=17, 20, 24, 28, 33, 45.4 MeV; measured vector, tensor analyzing power vs θ, E.

doi: 10.1016/0375-9474(83)90295-6
Citations: PlumX Metrics


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
Citations: PlumX Metrics


1982BA65      Helv.Phys.Acta 55, 244 (1982)

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

Quasi Free π--4He Scattering

NUCLEAR REACTIONS 4He(π+, π+'), E=90, 120, 170, 220, 270, 320 MeV; 4He(π-, π-'), E=120, 220 MeV; measured σ(θ, E(π)).


1979SE04      Nucl.Phys. A315, 45 (1979)

F.Seiler, H.W.Roser

New States of Maximum Polarization for Spin-1 Particles

NUCLEAR REACTIONS 4He(d, d), E=12-17 MeV; 4He(polarized d, d), E=6 MeV; calculated new states of maximum polarization for spin 1 particles located on lateral surface of Lakin cone.

doi: 10.1016/0375-9474(79)90632-8
Citations: PlumX Metrics


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