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NSR database version of April 11, 2024.

Search: Author = J.R.Specht

Found 26 matches.

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2004RE30      Nucl.Phys. A746, 161c (2004)

C.B.Reed, J.A.Nolen, J.R.Specht, V.J.Novick, P.Plotkin

A 20 kw beam-on-target test of a high-power liquid lithium target for RIA

doi: 10.1016/j.nuclphysa.2004.09.127
Citations: PlumX Metrics


1987ST10      Phys.Rev. C35, 2023 (1987)

K.E.Stephenson, R.J.Holt, R.D.McKeown, J.R.Specht

Measurements of Relative Angular Distributions for the 2H(γ, n)1H Reaction below 18 MeV

NUCLEAR REACTIONS 2H(γ, n), E=4-18 MeV; measured σ(θ)/σ(90°). Tof. Theoretical calculations.

doi: 10.1103/PhysRevC.35.2023
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0290.


1985UN01      Phys.Rev. C31, 934 (1985)

E.Ungricht, W.S.Freeman, D.F.Geesaman, R.J.Holt, J.R.Specht, B.Zeidman, E.J.Stephenson, J.D.Moses, M.Farkhondeh, S.Gilad, R.P.Redwine

Tensor Polarization in Pion-Deuteron Elastic Scattering

NUCLEAR REACTIONS 2H(π+, π+), E=140-256 MeV; measured tensor polarization t20(θ).

doi: 10.1103/PhysRevC.31.934
Citations: PlumX Metrics


1984AS05      Phys.Rev. C30, 946 (1984)

D.Ashery, D.F.Geesaman, R.J.Holt, H.E.Jackson, J.R.Specht, K.E.Stephenson, R.E.Segel, P.Zupranski, H.W.Baer, J.D.Bowman, M.D.Cooper, M.Leitch, A.Erell, J.Comuzzi, R.P.Redwine, D.R.Tieger

Inclusive Pion Single-Charge-Exchange Reactions

NUCLEAR REACTIONS 12,14C, 16,18O, Ni, 120Sn, Pb(π+, π0), (π-, π0), E=160 MeV; measured σ(E(π0), θ(π0)); deduced multiple scattering, neutron screening, Pauli blocking effects.

doi: 10.1103/PhysRevC.30.946
Citations: PlumX Metrics


1984SC03      Phys.Rev.Lett. 52, 597 (1984)

M.E.Schulze, D.Beck, M.Farkhondeh, S.Gilad, R.Goloskie, R.J.Holt, S.Kowalski, R.M.Laszewski, M.J.Leitch, J.D.Moses, R.P.Redwine, D.P.Saylor, J.R.Specht, E.J.Stephenson, K.Stephenson, W.Turchinetz, B.Zeidman

Measurement of the Tensor Polarization in Electron-Deuteron Elastic Scattering

NUCLEAR REACTIONS 2H(e, e), E=310-317 MeV; measured recoil deuteron tensor polarization. Windowless D2O target.

doi: 10.1103/PhysRevLett.52.597
Citations: PlumX Metrics


1984UN01      Phys.Rev.Lett. 52, 333 (1984)

E.Ungricht, W.S.Freeman, D.F.Geesaman, R.J.Holt, J.R.Specht, B.Zeidman, E.J.Stephenson, J.D.Moses, M.Farkhondeh, S.Gilad, R.P.Redwine

Tensor Polarization in π-d Scattering and Pion Absorption

NUCLEAR REACTIONS 2H(π+, π+), E=134-256 MeV; measured deuteron tensor polarization vs θ, E; deduced pion absorption treatment inadequacy.

doi: 10.1103/PhysRevLett.52.333
Citations: PlumX Metrics


1984UN02      Phys.Lett. 144B, 333 (1984)

J.E.Ungar, R.D.McKeown, D.F.Geesaman, R.J.Holt, J.R.Specht, K.E.Stephenson, B.Zeidman, C.L.Morris

Search for the Tetraneutron by the Double-Charge-Exchange of Negative Pions

NUCLEAR REACTIONS 12C, 4He(π-, π+), E=165 MeV; measured σ(θ) vs pion momentum; deduced bound tetraneutron production σ upper limit.

doi: 10.1016/0370-2693(84)91272-3
Citations: PlumX Metrics


1983AS01      Phys.Rev.Lett. 50, 482 (1983)

D.Ashery, D.F.Geesaman, R.J.Holt, H.E.Jackson, J.R.Specht, K.E.Stephenson, R.E.Segel, P.Zupranski, H.W.Baer, J.D.Bowman, M.D.Cooper, M.Leitch, A.Erell, R.Chefetz, J.Comuzzi, R.P.Redwine, D.R.Tieger

Isospin Effects in Pion Single-Charge-Exchange Reactions

NUCLEAR REACTIONS 12,14C, 16,18O(π+, π0), (π-, π0), E=160 MeV; measured σ(θ), σ(E(π)); deduced σ(ratio), isobar-nucleus interaction isospin dependence.

doi: 10.1103/PhysRevLett.50.482
Citations: PlumX Metrics


1983HO03      Phys.Rev.Lett. 50, 577 (1983)

R.J.Holt, K.Stephenson, J.R.Specht

Meson-Exchange Currents and the Reaction 2H(γ, n(pol))H

NUCLEAR REACTIONS 2H(γ, n), E=6-13 MeV; measured P(n) vs θ. Photoneutrons, CD2 target.

doi: 10.1103/PhysRevLett.50.577
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0154.


1983LE12      Phys.Rev. C28, 326 (1983)

S.M.Levenson, D.F.Geesaman, E.P.Colton, R.J.Holt, H.E.Jackson, J.P.Schiffer, J.R.Specht, K.E.Stephenson, B.Zeidman, R.E.Segel, P.A.M.Gram, C.A.Goulding

Inclusive Pion Scattering in the Δ(1232) Region

NUCLEAR REACTIONS 4He, 12C, 58Ni, 208Pb(π+, π+'), E=100, 160, 220, 300 MeV; measured σ(θ, E), σ(E(π')), σ(θ); deduced reaction mechansim, σ(inelastic) vs mass.

doi: 10.1103/PhysRevC.28.326
Citations: PlumX Metrics


1982BO09      Phys.Rev.Lett. 48, 986 (1982)

T.J.Bowles, R.J.Holt, H.E.Jackson, R.D.McKeown, A.M.Nathan, J.R.Specht

Isospin Splitting of the Giant Dipole Resonance in 60Ni

NUCLEAR REACTIONS 60Ni(γ, n), (γ, p), E=14-24 MeV bremsstrahlung; measured σ(θ), σ(total) vs E. 60Ni deduced GDR isospin splitting. Photon scattering data input.

doi: 10.1103/PhysRevLett.48.986
Citations: PlumX Metrics


1981AS10      Phys.Rev.Lett. 47, 895 (1981)

D.Ashery, R.J.Holt, H.E.Jackson, J.P.Schiffer, J.R.Specht, K.E.Stephenson

Isospin Dependence of Pion Absorption on a Pair of Nucleons

NUCLEAR REACTIONS 3,4He(π+, 2p), E=165 MeV; measured σ(θp1, θp2) vs proton momentum; deduced absorption dependence on nucleon pair isospin.

doi: 10.1103/PhysRevLett.47.895
Citations: PlumX Metrics


1981BO06      Phys.Rev. C23, 439 (1981)

T.J.Bowles, D.F.Geesaman, R.J.Holt, H.E.Jackson, J.Julien, R.M.Laszewski, J.R.Specht, E.J.Stephenson, R.P.Redwine, L.L.Rutledge, Jr., R.E.Segel, M.A.Yates

Inclusive (π+-, π0) Reactions in Nuclei

NUCLEAR REACTIONS 9Be, 12C, 16O, 58Ni, 208Pb(π+, π0), (π-, π0), E=50-100 MeV; measured σ(E, θ); deduced quasifree scattering effects. Optical model analysis.

doi: 10.1103/PhysRevC.23.439
Citations: PlumX Metrics


1981BO35      Phys.Rev. C24, 1940 (1981)

T.J.Bowles, R.J.Holt, H.E.Jackson, R.M.Laszewski, R.D.McKeown, A.M.Nathan, J.R.Specht

Photon Scattering Studies of the Giant Dipole Resonance in Medium Weight Nuclei

NUCLEAR REACTIONS 52Cr, Fe, 60Ni, 92,96Mo(γ, γ), (γ, γ'), E=14-22 MeV; measured Eγ, σ(θ); deduced GDR, collective surface vibration coupling. 52Cr, Fe, 60Ni, 92,96Mo deduced GDR isospin splitting.

doi: 10.1103/PhysRevC.24.1940
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0495.


1981HO15      Phys.Rev.Lett. 47, 472 (1981)

R.J.Holt, J.R.Specht, K.Stephenson, B.Zeidman, J.S.Frank, M.J.Leitch, J.D.Moses, E.J.Stephenson, R.M.Laszewski

Measurement of the Angular Distribution of Tensor Polarization in Pion-Deuteron Elastic Scattering

NUCLEAR REACTIONS 2H(π+, π+), E=142 MeV; measured tensor polarization t20(θ(π)). CD2 target, quadrupole doublet focussing, plastic scintillator array.

doi: 10.1103/PhysRevLett.47.472
Citations: PlumX Metrics


1981LE12      Phys.Rev.Lett. 47, 479 (1981)

S.M.Levenson, D.F.Geesaman, E.P.Colton, R.J.Holt, H.E.Jackson, J.P.Schiffer, J.R.Specht, K.E.Stephenson, B.Zeidman, R.E.Segal, P.A.M.Gram, C.A.Goulding

Inclusive Pion Scattering in the (3, 3) Resonance Region

NUCLEAR REACTIONS 4He, 12C, 58Ni, 208Pb(π+, X), E=100, 160, 220 MeV; measured σ(inclusive), σ(reaction).

doi: 10.1103/PhysRevLett.47.479
Citations: PlumX Metrics


1981MC02      Nucl.Phys. A358, 411c (1981)

R.D.McKeown, J.P.Schiffer, H.E.Jackson, M.Paul, S.J.Sanders, J.R.Specht, E.J.Stephenson, R.P.Redwine, R.E.Segel, J.Arends, J.Eyink, H.Hartmann, A.Hegerath, B.Mecking, G.Noldeke, H.Rost

Comparison of Pion and Photon Induced Reactions on Complex nuclei

NUCLEAR REACTIONS 12C(π+, p), (π-, p), E=220 MeV; 12C(γ, p), E=343 MeV; analyzed σ(θp, Ep); deduced Δ production mechanism.

doi: 10.1016/0375-9474(81)90354-7
Citations: PlumX Metrics


1981MC09      Phys.Rev. C24, 211 (1981)

R.D.McKeown, S.J.Sanders, J.P.Schiffer, H.E.Jackson, M.Paul, J.R.Specht, E.J.Stephenson, R.P.Redwine, R.E.Segel

Inclusive Reactions of Pions on Nuclei

NUCLEAR REACTIONS 4He, 6Li, 9Be, 12C, 27Al, Ni, 181Ta(π+, p), (π-, p), (π+, π+'), (π-, π-'), E=100, 160, 220 MeV; measured σ(θ, Ep), inclusive pion yields.

doi: 10.1103/PhysRevC.24.211
Citations: PlumX Metrics


1980HO11      Phys.Rev. C21, 1699 (1980); Erratum Phys.Rev. C23, 1841 (1981)

R.J.Holt, R.M.Laszewski, H.E.Jackson, J.E.Monahan, J.R.Specht

Photoneutron Studies of E1, M1, and E2 Excitations in 13C

NUCLEAR REACTIONS 13C(γ, n0), E=6.5-9.3 MeV; measured σ(θ), θ=90°, 135°; deduced Γγ.

doi: 10.1103/PhysRevC.21.1699
Citations: PlumX Metrics


1980MC03      Phys.Rev.Lett. 44, 1033 (1980)

R.D.McKeown, S.J.Sanders, J.P.Schiffer, H.E.Jackson, M.Paul, J.R.Specht, E.J.Stephenson, R.P.Redwine, R.E.Segel

How Many Nucleons Are Involved in Pion Absorption in Nuclei < Question >

NUCLEAR REACTIONS 12C, 27Al, 58Ni, 181Ta(π+, p), (π-, p), E=100, 160, 220 MeV; measured inclusive production σ(θ). 12C, 27Al, 58Ni, 181Ta deduced effective number of participating nucleons.

doi: 10.1103/PhysRevLett.44.1033
Citations: PlumX Metrics


1980MC10      Phys.Rev.Lett. 45, 2015 (1980)

R.D.McKeown, J.P.Schiffer, H.E.Jackson, M.Paul, S.J.Sanders, J.R.Specht, E.J.Stephenson, R.P.Redwine, R.E.Segel, J.Arends, J.Eyink, H.Hartmann, A.Hegerath, B.Mecking, G.Noldeke, H.Rost

Comparison of Pion- and Photon-Induced Reactions on 12C

NUCLEAR REACTIONS 12C(π+, p), (π-, p), E=220 MeV; 12C(γ, p), E=343 MeV; analyzed σ(θp, Ep); deduced possible common reaction mechanism via isobar production.

doi: 10.1103/PhysRevLett.45.2015
Citations: PlumX Metrics


1979HO12      Phys.Rev. C20, 93 (1979)

R.J.Holt, H.E.Jackson, R.M.Laszewski, J.R.Specht

High-Resolution Photoneutron Study of E1 and M1 Transitions in 208Pb

NUCLEAR REACTIONS 208Pb(γ, n), E=bremsstrahlung; measured σ(θ), P(θ). 208Pb deduced resonances, J, π, Γγ, B(M1), s-d admixture in E1 excitations.

doi: 10.1103/PhysRevC.20.93
Citations: PlumX Metrics


1979HO18      Phys.Rev.Lett. 43, 1229 (1979)

R.J.Holt, J.R.Specht, E.J.Stephenson, B.Zeidman, R.L.Burman, J.S.Frank, M.J.Leitch, J.D.Moses, M.A.Yates-Williams, R.M.Laszewski, R.P.Redwine

Measurement of Tensor Polarization and Cross Section for the Reaction 2H(π+, π+)2H at 180°

NUCLEAR REACTIONS 2H(π+, π+), E=60-140 MeV; measured σ(θ), T20 of recoil d.

doi: 10.1103/PhysRevLett.43.1229
Citations: PlumX Metrics


1978BO01      Phys.Rev.Lett. 40, 97 (1978)

T.Bowles, D.F.Geesaman, R.J.Holt, H.E.Jackson, R.M.Laszewski, J.R.Specht, L.L.Rutledge, Jr., R.E.Segel, R.P.Redwine, M.A.Yates-Williams

Properties of Inclusive (π+, π0) Reactions in Nuclei

NUCLEAR REACTIONS Be, C, O, 58Ni, 208Pb(π+, π0), E=100 MeV; measured σ.

doi: 10.1103/PhysRevLett.40.97
Citations: PlumX Metrics


1978BO27      Phys.Rev.Lett. 41, 1095 (1978)

T.J.Bowles, R.J.Holt, H.E.Jackson, R.M.Laszewski, A.M.Nathan, J.R.Specht, R.Starr

Direct Observation of Elastic and Inelastic Photon Scattering by the Giant Dipole Resonance in 60Ni

NUCLEAR REACTIONS 60Ni(γ, γ'), E=15-22 MeV; measured σ(E, Eγ').

doi: 10.1103/PhysRevLett.41.1095
Citations: PlumX Metrics


1978HO16      Phys.Rev. C18, 1962 (1978)

R.J.Holt, H.E.Jackson, R.M.Laszewski, J.E.Monahan, J.R.Specht

Effects of Channel and Potential Radiative Transitions in the 17O(γ, n0)16O Reaction

NUCLEAR REACTIONS 17O(γ, n), E=4.3-7 MeV; measured σ(E, θ). 17O resonances deduced ground state Γγ for E1, M1. R-matrix analysis, astrophysical implications.

doi: 10.1103/PhysRevC.18.1962
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0196.


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