NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = H.C.Evans Found 40 matches. 1996OU01 Phys.Rev. C54, 1982 (1996) J.M.L.Ouellet, M.N.Butler, H.C.Evans, H.W.Lee, J.R.Leslie, J.D.MacArthur, W.McLatchie, H.-B.Mak, P.Skensved, J.L.Whitton, X.Zhao 12C(α, γ)16O Cross Sections at Stellar Energies NUCLEAR REACTIONS, ICPND 12C(α, γ), E=1.5-3 MeV; measured σ(θ); deduced E1, E2 σ, astrophysical S-factor. K-matrix, R-matrix, cluster models.
doi: 10.1103/PhysRevC.54.1982
1994IL01 Nucl.Phys. A571, 132 (1994) C.Iliadis, J.Gorres, J.G.Ross, K.W.Scheller, M.Wiescher, R.E.Azuma, G.Roters, H.P.Trautvetter, H.C.Evans Explosive Hydrogen Burning of 35Cl NUCLEAR REACTIONS 35Cl(3He, d), E=15 MeV; measured σ(θ), σ(Ed). 32S(6Li, d), E=32 MeV; measured σ(Ed). 32S(α, γ), E ≈ resonance; measured Eγ, Iγ. 35Cl(p, γ), E ≈ 200-800 keV; measured γ yield vs E , stellar rates. 35Cl(p, X), E=177 keV; measured particle spectra. 36Ar deduced levels, J, π, L, spectroscopic factors, γ-branching ratios, resonance strengths. Deduced no evidence for (p, α) reactions.
doi: 10.1016/0375-9474(94)90345-X
1993IL01 Nucl.Phys. A559, 83 (1993) C.Iliadis, J.Gorres, J.G.Ross, K.W.Scheller, M.Wiescher, C.Grama, Th.Schange, H.P.Trautvetter, H.C.Evans Explosive Hydrogen Burning of 31P NUCLEAR REACTIONS, ICPND 31P(p, γ), (p, α), E=160-370 keV; 28Si(α, γ), E=2.4-2.6 MeV; measured γ yield vs E; deduced stellar reaction rates, temperature dependence. 32S deduced proton thershold state features.
doi: 10.1016/0375-9474(93)90181-V
1993KO38 Phys.Rev. C48, 2375 (1993) R.J.Komar, H.-B.Mak, J.R.Leslie, H.C.Evans, E.Bonvin, E.D.Earle, T.K.Alexander 3He(n, γ)4He Cross Section and the Photodisintegration of 4He NUCLEAR REACTIONS 3He(n, γ), E=0.14-2 MeV; measured absolute σ(E) for θ=90°; deduced σ(γ, p)/σ(γ, n). 4He deduced charge symmetry breaking related features. Model comparison.
doi: 10.1103/PhysRevC.48.2375
1992OU01 Phys.Rev.Lett. 69, 1896 (1992) J.M.L.Ouellet, H.C.Evans, H.W.Lee, J.R.Leslie, J.D.MacArthur, W.McLatchie, H.-B.Mak, P.Skensved, J.L.Whitton, X.Zhao, T.K.Alexander 12C(α, γ)16O Cross Sections at Stellar Energies NUCLEAR REACTIONS, ICPND 12C(α, γ), E(cm)=1.37-2.98 MeV; measured σ(E), Iγ(θ); deduced E1, E2 contributions, astrophysical S-factor. Three-level R-matrix method, cluster model analysis.
doi: 10.1103/PhysRevLett.69.1896
1990RA23 Phys.Rev. C42, R2275 (1990) T.J.Radcliffe, T.K.Alexander, G.C.Ball, H.C.Evans, J.R.Leslie, H.-B.Mak, W.McLatchie, P.Skensved, A.T.Stewart Search for Resonances in the Electron-Positron Annihilation-in-Flight Cross Section between 1 and 4 MeV NUCLEAR REACTIONS 19F(p, α), E=1.27 MeV; measured e+-spectra in Ge following 16O-decay; deduced e+e- annihilation-in-flight σ.
doi: 10.1103/PhysRevC.42.R2275
1989CL02 Nucl.Phys. A493, 293 (1989) E.T.H.Clifford, E.Hagberg, J.C.Hardy, H.Schmeing, R.E.Azuma, H.C.Evans, V.T.Koslowsky, U.J.Schrewe, K.S.Sharma, I.S.Towner The Decay of 20Na: Measurements of isospin mixing and the weak vector coupling constant as well as other new decay data RADIOACTIVITY 20Na [from 12C(10B, 2n), mass separation]; measured β+ rays, β-delayed Eα, Iα, Eγ, Iγ, T1/2, I(Eγ), (βα)-coin; deduced ft values, βνα-triple correlation coefficients, vector weak coupling constants. 20Ne deduced branching ratios, Gamow-Teller matrix elements, levels, isospin mixing amplitudes. Natural target, Ge(Li), Si surface barrier detectors, NE102A plastic scintillator-Si surface barrier detector telescopes.
doi: 10.1016/0375-9474(89)90399-0
1989SH10 Nucl.Instrum.Methods Phys.Res. A275, 123 (1989) K.S.Sharma, H.Schmeing, H.C.Evans, E.Hagberg, J.C.Hardy, V.T.Koslowsky The Direct Determination of the Masses of Unstable Atoms with the Chalk River On-Line Isotope Separator ATOMIC MASSES 72Br, 63Ga; measured masses. On-line isotope separator.
doi: 10.1016/0168-9002(89)90342-2
1988KR06 Phys.Rev.Lett. 60, 1475 (1988) R.M.Kremer, C.A.Barnes, K.H.Chang, H.C.Evans, B.W.Filippone, K.H.Hahn, L.W.Mitchell Coincidence Measurement of the 12C(α, γ)16O Cross Section at Low Energies NUCLEAR REACTIONS, ICPND 12C(α, γ), E(cm)=1.29-3 MeV; measured γ-spectra, γ(recoil)-coin; deduced γ yields, dipole capture σ(E), S-factor vs E.
doi: 10.1103/PhysRevLett.60.1475
1987KO33 Nucl.Phys. A472, 408 (1987) V.T.Koslowsky, R.E.Azuma, H.C.Evans, E.Hagberg, J.C.Hardy, J.R.Leslie, H.Schmeing, C.Virtue The Precise Determination of some γ-Ray Transition Energies in 26Al, 27Al and 55Co NUCLEAR REACTIONS 25Mg(p, γ), E=1195 keV; 26Mg(p, γ), E=2141, 2220 keV; 54Fe(p, γ), E=1803, 1887 keV; measured Eγ. 26,27Al, 55Co deduced γ-ray transition energies. Enriched targets, Ge(Li) detector.
doi: 10.1016/0375-9474(87)90040-6
1987PA07 Phys.Rev. C35, 1119 (1987) S.A.Page, H.C.Evans, G.T.Ewan, S.-P.Kwan, J.R.Leslie, J.D.MacArthur, W.McLatchie, P.Skensved, S.-S.Wang, H.-B.Mak, A.B.McDonald, C.A.Barnes, T.K.Alexander, E.T.H.Clifford Weak Pion-Nucleon Coupling Strength: New constraint from parity mixing in 18F NUCLEAR REACTIONS 16O(3He, p), E=4.05 MeV; measured γ CP; deduced weak pion-nucleon coupling strength. 19F levels deduced parity mixing.
doi: 10.1103/PhysRevC.35.1119
1985EV03 Phys.Rev.Lett. 55, 791 (1985) H.C.Evans, G.T.Ewan, S.-P.Kwan, J.R.Leslie, J.D.MacArthur, H.-B.Mak, W.McLatchie, S.A.Page, P.Skensved, S.-S.Wang, A.B.McDonald, C.A.Barnes, T.K.Alexander, E.T.H.Clifford Parity Mixing of 0+ and 0- Levels in 18F NUCLEAR REACTIONS 16O(3He, p), E=4.05 MeV; measured Eγ, Iγ, γ CP; deduced weak pion-nucleon coupling constant. 18F transition deduced parity nonconserving matrix element.
doi: 10.1103/PhysRevLett.55.791
1984EV01 Can.J.Phys. 62, 1139 (1984) H.C.Evans, I.P.Johnstone, J.R.Leslie, W.McLatchie, H.-B.Mak, P.Skensved, T.K.Alexander The Branching Ratio in the Decay of 7Be RADIOACTIVITY 7Be(EC) [from 10B(p, α), E=2 MeV]; measured Eγ, Iγ; deduced vector coupling constant G(A). 7Li level deduced EC-branching ratio. NUCLEAR REACTIONS 10B(p, α), E=2 MeV; measured Eγ, Iγ, recoil σ(E(7Be)), σ(Eα). 7Li level deduced EC-decay branching ratio.
doi: 10.1139/p84-158
1983CL01 Phys.Rev.Lett. 50, 23 (1983) E.T.H.Clifford, J.C.Hardy, H.Schmeing, R.E.Azuma, H.C.Evans, T.Faestermann, E.Hagberg, K.P.Jackson, V.T.Koslowsky, U.J.Schrewe, K.S.Sharma, I.S.Towner Kinematic Shifts in the β-Delayed Particle Decay of 20Na, and the β-ν Angular Correlation RADIOACTIVITY 20Na(β+), (EC) [from 12C(10B, 2n), E=50 MeV]; measured βν(θ), βνα-coin; deduced β-delayed α-particle kinematic shifts, triple correlation coefficient; deduced superallowed β-decay vector weak coupling constant.
doi: 10.1103/PhysRevLett.50.23
1983KO22 Nucl.Phys. A405, 29 (1983) V.T.Koslowsky, E.Hagberg, J.C.Hardy, R.E.Azuma, E.T.H.Clifford, H.C.Evans, H.Schmeing, U.J.Schrewe, K.S.Sharma The Half-Lives of 26mAl, 34Cl, 38mK: Precision measurements with isotope-separated samples RADIOACTIVITY 26mAl(β+) [from 12C(16O, pn)]; 34Cl(β+) [from 12C(28Si, 3p3n)]; 38mK(β+) [from 12C(28Si, pn)]; measured T1/2. 4π gas proportional counter, mass separated sources.
doi: 10.1016/0375-9474(83)90321-4
1983LE25 Nucl.Phys. A410, 93 (1983) R.Leavitt, H.C.Evans, G.T.Ewan, H.-B.Mak, R.E.Azuma, C.Rolfs, K.P.Jackson Isospin Mixing in 2- Levels in 16O NUCLEAR REACTIONS 15N(p, α), (p, p), E=0.43, 0.9 MeV; measured σ(E, Eα, θ), σ(E, Ep, θ). 16O resonances deduced Γα, Γp. Differentially pumped enriched 13N gas target.
doi: 10.1016/0375-9474(83)90403-7
1982EV01 Nucl.Instrum.Methods 192, 143 (1982) H.C.Evans, G.T.Ewan, J.R.Leslie, J.D.MacArthur, H.-B.Mak, W.McLatchie, R.C.Turnock, M.B.Woods A Cryopumped Transmission Gas Target for Nuclear Structure Studies NUCLEAR REACTIONS 14N(α, α)(α, γ), E ≈ 1517.5-1535 keV; measured σ(θ, E), σ(Eγ). 16O(α, γ), E=3.020, 3.036 MeV; measured Eγ, Iγ. 20Ne deduced E2 transition strength. Differentially pumped transmission gas target.
doi: 10.1016/0029-554X(82)90816-3
1982HA32 Nucl.Phys. A383, 109 (1982) E.Hagberg, J.C.Hardy, H.Schmeing, H.C.Evans, U.J.Schrewe, V.T.Koslowsky, K.S.Sharma, E.T.H.Clifford The Decay of a New Nuclide: 71Br RADIOACTIVITY 71Br [from 40Ca(35Cl, 2n2p), mass separation]; measured T1/2, Eγ, Iγ, γγ-coin. 71Se deduced levels, T1/2, transition, possible J, π, γ-multipolarity. Ge(Li), Ge detectors.
doi: 10.1016/0375-9474(82)90079-3
1980MA26 Nucl.Phys. A343, 79 (1980) H.-B.Mak, G.T.Ewan, H.C.Evans, J.D.MacArthur, W.McLatchie, R.E.Azuma The Alpha Widths of the 5603, 5605 and 5668 keV States in 18F NUCLEAR REACTIONS 14N(α, α), E=1.5, 1.6 MeV; measured σ(θ, Eα). 18F resonances deduced Γα. R-matrix formalism. Differentially pumped natural nitrogen gas target.
doi: 10.1016/0375-9474(80)90641-7
1980MA27 Phys.Rev. C22, 356 (1980) J.D.MacArthur, H.C.Evans, J.R.Leslie, H.-B.Mak First Two Members of the K=0- Band in 20Ne NUCLEAR REACTIONS 16O(α, α), E=1305-1330 keV, 2950-3075 keV; measured σ(E, θ); 16O(α, γ), E=1.37, 2.6, 2.9, 3.036 MeV; measured σ(E), Eγ. 20Ne resonances deduced Γα, B(λ), Γγ. NUCLEAR STRUCTURE 16O, 40,48Ca, 60Ni, 90Zr, 116Sn, 140Ce, 208Pb, 238U; calculated binding energies. Energy density formalism, generalized Thomas-Fermi form, variational procedure.
doi: 10.1103/PhysRevC.22.356
1979SI10 Can.J.Phys. 57, 781 (1979) K.N.Sinha, A.G.Hwang, H.-B.Mak, H.C.Evans A Study of the 34S(α, γ)38Ar Reaction NUCLEAR REACTIONS 34S(α, γ), E=2-3.5 MeV; measured σ, Eγ, Iγ. 38Ar deduced levels, J, γ-branching, transition strength, δ, resonance strength.
doi: 10.1139/p79-110
1978MA30 Nucl.Phys. A304, 210 (1978) H.-B.Mak, H.C.Evans, G.T.Ewan, J.D.Macarthur The 18O(p, α)15N Cross Section at Low Energies NUCLEAR REACTIONS 18O(p, α), E=240-700 keV; measured σ(E, θ); deduced S.
doi: 10.1016/0375-9474(78)90104-5
1976MA40 Phys.Rev. C14, 1320 (1976) D.J.Martin, H.C.Evans, J.A.Szucs γ-Ray Decay of the First T = 2 States in 36Ar NUCLEAR REACTIONS 35Cl(p, γ), E ≈ 2410 keV; 27Al(p, γ), E ≈ 0.991 keV; measured σ(E, Eγ, θ). 36Ar deduced levels, γ-branching. 28Si level deduced S. T=2 state systematics.
doi: 10.1103/PhysRevC.14.1320
1976MC12 Nucl.Phys. A273, 477 (1976) A.B.McDonald, H.B.Mak, H.C.Evans, G.T.Ewan, H.B.Trautvetter Isospin-Forbidden Particle Decays in Light Nuclei (III). Decay Widths of the Lowest T = 3/2 Level of 21Ne NUCLEAR REACTIONS 17O(α, n), (α, nγ), E=1.4-2.3 MeV; measured n, γ yields. 21Ne deduced T=3/2 levels, Γ, Γα, Γn. Enriched target.
doi: 10.1016/0375-9474(76)90605-9
1975MA34 Phys.Rev. C12, 1158 (1975) H.-B.Mak, H.C.Evans, G.T.Ewan, A.B.McDonald, T.K.Alexander Radiative Decay of the Second Excited State of 12C NUCLEAR REACTIONS 13C(3He, α), E=4.0 MeV; measured α-12C coin. 12C level deduced Γ(rad)/Γ. Enriched target.
doi: 10.1103/PhysRevC.12.1158
1975SI08 Nucl.Phys. A243, 1 (1975) Perturbed Angular Distribution in 53Mn Following Resonant Proton Capture NUCLEAR REACTIONS 52Cr(p, γ), Ep=1.724 MeV; measured Iγ(θ, H). 53Mn level deduced g. Natural target.
doi: 10.1016/0375-9474(75)90017-2
1971RO33 Phys.Lett. 37B, 65 (1971) D.W.O.Rogers, K.W.Allen, H.C.Evans, N.A.Jelley, A.E.Litherland, B.Y.Underwood The 5- Resonance in the 16O(α, γ)20Ne Reaction at E = 4.65 MeV NUCLEAR REACTIONS 16O(α, γ), E approx 4.6 MeV; measured σ(E;Eγ). 20Ne deduced resonance, level-width, J, π, γ-branching.
doi: 10.1016/0370-2693(71)90572-7
1971SI29 Nucl.Instrum.Methods 97, 475 (1971) Relative Efficiency of Ge(Li) Gamma Ray Detectors from 0.5 to 12 MeV RADIOACTIVITY 56Co; measured Iγ. Ge(Li) detectors. NUCLEAR REACTIONS 27Al(p, γ), 31P(p, γ), E=992 keV, 1248 keV; measured σ(Eγ, θ(γ)). 23Na, 39K, (p, γ), E=resonance; measured σ(Eγ, θ(γ)). 32S deduced levels, γ-branching. 24Mg, 28Si, 40Ca deduced branching ratios.
doi: 10.1016/0029-554X(71)90249-7
1970CE02 Phys.Rev.Lett. 24, 1128 (1970) J.Cerny, C.U.Cardinal, H.C.Evans, K.P.Jackson, N.A.Jelley 49Fe: A New T(z) = -3/2 Delayed-Proton Emitter RADIOACTIVITY 49Fe[from 40Ca(12C, 3n)]; measured T1/2, delayed proton spectrum. 33Ar; measured delayed proton spectrum. NUCLEAR REACTIONS 24Mg, 28Si(12C, 3n), 40Ca(12C, 3n), E=65 MeV; measured delayed proton spectrum.
doi: 10.1103/PhysRevLett.24.1128
1970HA04 Can.J.Phys. 48, 35 (1970) O.Hausser, B.W.Hooton, D.Pelte, T.K.Alexander, H.C.Evans Measurement of the Reorientation Effect in 24Mg NUCLEAR REACTIONS 24Mg(35Cl, 35Cl'γ), E=62 MeV; measured σ(E(35Cl'), Eγ, E(24Mg'), θ(γ), θ(24Mg'), phi). 24Mg deduced quadrupole moment, level-width, E2 matrix element.
1970HA24 Nucl.Phys. A150, 417 (1970) O.Hausser, D.Pelte, T.K.Alexander, H.C.Evans Reorientation Measurements in Even Titanium Isotopes NUCLEAR REACTIONS 46,48Ti(35Cl, 35Cl'γ), E=70.35-74 MeV; 50Ti(32S, 32S'γ), E=67 MeV; measured Coulomb excitation, σ(E, Eγ, θ). 46,48,50Ti, 32S levels deduced B(E2), quadrupole moment. Enriched targets.
doi: 10.1016/0375-9474(70)90960-7
1970HA30 Izv.Akad.Nauk SSSR, Ser.Fiz. 34, 909 (1970); Bull.Acad.Sci.USSR, Phys.Ser. 34, 811 (1971) O.Hausser, B.W.Hooton, D.Pelte, T.K.Alexander, H.C.Evans Reorientation in 24Mg NUCLEAR REACTIONS 24Mg(35Cl, 35Cl'γ), E=62 MeV; measured σ(ecl', Eγ, θ). 24Mg level deduced quadrupole moment.
1970JA22 Phys.Lett. 33B, 281 (1970) K.P.Jackson, C.U.Cardinal, H.C.Evans, N.A.Jelley, J.Cerny 53Co-m: A Proton-Unstable Isomer NUCLEAR REACTIONS Ca(16O, 2np), E < 81 MeV; measured σ(E), delayed-p spectrum, (16O)(γ)-delay. 53mCo deduced T1/2.
doi: 10.1016/0370-2693(70)90269-8
1970MO29 Can.J.Phys. 48, 2683 (1970) C.F.Monahan, H.C.Evans, J.H.Montague, W.R.Paulson, W.M.Zuk Transition Rates in 29P NUCLEAR REACTIONS 28Si(p, γ), E=1-5 MeV; measured Doppler shift attenuation, σ(E;Eγ, θ(γ)). 29P deduced resonances, J, π, γ-branching, γ-mixing. 29P levels deduced T1/2.
doi: 10.1139/p70-332
1969HA06 Phys.Rev.Letters 22, 359(1969) O.Hausser, B.W.Hooton, D.Pelte, T.K.Alexander, H.C.Evans Measurement of the Static Quadrupole Moment of the First Excited State In 24Mg NUCLEAR REACTIONS 24Mg(35Cl, 35Cl'γ), E=62 MeV; measured σ(Eγ, θ). 24Mg levels deduced B(E2), quadrupole moment.
doi: 10.1103/PhysRevLett.22.359
1969HA17 Can.J.Phys. 47, 1065 (1969) O.Hausser, D.Pelte, T.K.Alexander, H.C.Evans Coulomb Excitation of 35Cl Projectiles NUCLEAR REACTIONS 12C, 24Mg(35Cl, 35Cl'γ), E = 51-61 MeV; measured Eγ, Iγ(θ), Doppler-shift attenuation. 35Cl deduced levels, T1/2, γ-mixing, γ-branching, transition strengths. Ge(Li) detector.
1969HA31 Phys.Rev.Letters 23, 320 (1969) O.Hausser, T.K.Alexander, D.Pelte, B.W.Hooton, H.C.Evans Coulomb Excitation of 28Si Projectiles NUCLEAR REACTIONS 62Ni(28Si, 28Si), E=70 MeV; measured σ(E(28Si), E(62Ni), Eγ). 28Si, 62Ni levels deduced quadrupole moment.
doi: 10.1103/PhysRevLett.23.320
1969PE08 Phys.Letters 29B, 660 (1969) D.Pelte, O.Hausser, T.K.Alexander, B.W.Hooton, H.C.Evans Coulomb Excitation of the First Excited State of 28Si NUCLEAR REACTIONS 28Si(32S, 32S'γ), E=60 MeV; measured σ, σ(Eγ, θ(γ)), Doppler broadening. 28Si level deduced T1/2, quadrupole moment. Ge(Li) detector.
doi: 10.1016/0370-2693(69)90103-8
1969PE11 Can.J.Phys. 47, 1929 (1969) D.Pelte, O.Hausser, T.K.Alexander, H.C.Evans Coulomb Excitation of 24Mg with 35Cl Ions NUCLEAR REACTIONS 24Mg(35Cl, 35Cl'γ), E = 52, 57, 61 MeV; measured σ(Eγ, θ(γ)). 24Mg level deduced B(E2), quadrupole moment. Ge(Li) detector.
doi: 10.1139/p69-243
1965EV03 Can.J.Phys. 43, 82 (1965) H.C.Evans, M.A.Eswaran, H.E.Gove, A.E.Litherland, C.Broude Lifetimes of the Low-Lying Levels of 20Ne NUCLEAR STRUCTURE 20Ne, 12C; measured not abstracted; deduced nuclear properties.
doi: 10.1139/p65-007
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