NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = J.R.Specht Found 26 matches. 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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