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NSR database version of April 11, 2024.

Search: Author = J.Powell

Found 22 matches.

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2011LE25      J.Phys.(London) G38, 075201 (2011)

D.W.Lee, J.Powell, K.Perajarvi, F.Q.Guo, D.M.Moltz, J.Cerny

Study of the 11C(p, γ) reaction via the indirect d(11C, 12N)n transfer reaction

NUCLEAR REACTIONS 2H(11C, 12N), E=150 MeV; measured reaction products; deduced σ(θ), S-factors, reaction rates. DWUCK4 code calculations.

doi: 10.1088/0954-3899/38/7/075201
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1903. Data from this article have been entered in the XUNDL database. For more information, click here.


2007BU01      Phys.Rev. C 75, 012804 (2007)

L.Buchmann, J.D'Auria, M.Dombsky, U.Giesen, K.P.Jackson, P.McNeely, J.Powell, A.Volya

β-delayed α emission of 18N: Broad Jπ = 1- states in the 14C + α system

RADIOACTIVITY 18N(β-); measured β-delayed Eα, βα-coin. 18O deduced level energies, J, π, widths. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.75.012804
Citations: PlumX Metrics

Data from this article have been entered in the XUNDL database. For more information, click here.


2007LE26      Phys.Rev. C 76, 024314 (2007)

D.W.Lee, K.Perajarvi, J.Powell, J.P.O'Neil, D.M.Moltz, V.Z.Goldberg, J.Cerny

Low-lying resonant states in 16F using a 15O radioactive ion beam

NUCLEAR REACTIONS 1H(15O, p), E=120 MeV; measured excitation function. 16F deduced level widths.

doi: 10.1103/PhysRevC.76.024314
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Data from this article have been entered in the XUNDL database. For more information, click here.


2006PE21      Phys.Rev. C 74, 024306 (2006)

K.Perajarvi, C.Fu, G.V.Rogachev, G.Chubarian, V.Z.Goldberg, F.Q.Guo, D.Lee, D.M.Moltz, J.Powell, B.B.Skorodumov, G.Tabacaru, X.D.Tang, R.E.Tribble, B.A.Brown, A.Volya, J.Cerny

Structure of 12N using 11C+p resonance scattering

NUCLEAR REACTIONS 1H(11C, p), E(cm)=2.2-11.0 MeV; measured recoil proton spectra, σ(θ), excitation functions. 12N deduced levels, J, π, widths. R-matrix analysis.

doi: 10.1103/PhysRevC.74.024306
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1506. Data from this article have been entered in the XUNDL database. For more information, click here.


2005BE61      Eur.Phys.J. A 25, Supplement 1, 203 (2005)

N.Benczer-Koller, G.Kumbartzki, J.R.Cooper, T.J.Mertzimekis, M.J.Taylor, L.Bernstein, K.Hiles, P.Maier-Komor, M.A.McMahan, L.Phair, J.Powell, K.-H.Speidel, D.Wutte

First g-factor measurement using a radioactive 76Kr beam

NUCLEAR REACTIONS 26Mg(76Kr, 76Kr'), E=230 MeV; measured Eγ, Iγ(θ, H, t), (particle)γ-coin following projectile Coulomb excitation. 76Kr level deduced g factor. Transient field technique.

doi: 10.1140/epjad/i2005-06-098-8
Citations: PlumX Metrics


2005GU25      Phys.Rev. C 72, 034312 (2005)

F.Q.Guo, J.Powell, D.W.Lee, D.Leitner, M.A.McMahan, D.M.Moltz, J.P.O'Neil, K.Perajarvi, L.Phair, C.A.Ramsey, X.J.Xu, J.Cerny

Reexamination of the energy levels of 15F by 14O + 1H elastic resonance scattering

NUCLEAR REACTIONS 1H(14O, p), E=120 MeV; measured recoil proton spectra, σ(θ). 15F deduced resonance energies, J, π.

doi: 10.1103/PhysRevC.72.034312
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1369.


2004KU11      Phys.Lett. B 591, 213 (2004)

G.Kumbartzki, J.R.Cooper, N.Benczer-Koller, K.Hiles, T.J.Mertzimekis, M.J.Taylor, K.-H.Speidel, P.Maier-Komor, L.Bernstein, M.A.McMahan, L.Phair, J.Powell, D.Wutte

First g factor measurement using a radioactive 76Kr beam

NUCLEAR REACTIONS 26Mg(76Kr, 76Kr'), E=230 MeV; 26Mg(78Kr, 78Kr'), E=224 MeV; measured Eγ, Iγ(θ, H, t) following projectile Coulomb excitation. 76,78Kr levels deduced g factors. Transient field technique, systematics in neighboring isotopes discussed.

doi: 10.1016/j.physletb.2004.04.040
Citations: PlumX Metrics


2002AN06      Phys.Rev. C65, 034310 (2002)

D.Anthony, L.Buchmann, P.Bergbusch, J.M.D'Auria, M.Dombsky, U.Giesen, K.P.Jackson, J.D.King, J.Powell, F.C.Barker

β-Delayed Deuteron Emission from 6He

RADIOACTIVITY 6He(β-) [from C(p, X)]; measured Eβ, β-delayed deuteron spectra, dα-coin, T1/2; deduced branching ratio. Comparison with model predictions.

doi: 10.1103/PhysRevC.65.034310
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2002CH61      Phys.Rev. C 66, 064316 (2002)

J.C.Chow, J.D.King, N.P.T.Bateman, R.N.Boyd, L.Buchmann, J.M.D'Auria, T.Davinson, M.Dombsky, E.Gete, U.Giesen, C.Iliadis, K.P.Jackson, A.C.Morton, J.Powell, A.Shotter

β-delayed particle decay of 17Ne into p+α+12C through the isobaric analog state in 17F

RADIOACTIVITY 17Ne(β+α), (β+p); measured Ep, Eα pα(12C)-coin following decay of intermediate IAS state; deduced branching ratios. 17F deduced branching ratios for particle decay from IAS.

doi: 10.1103/PhysRevC.66.064316
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2002MO19      Nucl.Phys. A706, 15 (2002)

A.C.Morton, J.C.Chow, J.D.King, R.N.Boyd, N.P.T.Bateman, L.Buchmann, J.M.D'Auria, T.Davinson, M.Dombsky, W.Galster, E.Gete, U.Giesen, C.Iliadis, K.P.Jackson, J.Powell, G.Roy, A.Shotter

Beta-Delayed Particle Decay of 17Ne

RADIOACTIVITY 17Ne(β+p), (β+α); measured Ep, Eα, pγ-coin, angular correlations; deduced log ft, Gamow-Teller strength. 17F deduced levels, J, π, particle decay branching ratios.

doi: 10.1016/S0375-9474(02)00862-X
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2002RO17      Phys.Rev. C65, 054310 (2002)

M.W.Rowe, J.C.Batchelder, T.N.Ginter, K.E.Gregorich, F.Q.Guo, F.P.Hessberger, V.Ninov, J.Powell, K.S.Toth, X.J.Xu, J.Cerny

Decay of 178Tl

RADIOACTIVITY 159Ta, 170,171Ir, 171,172,173Pt, 174,175,176Au, 175,176,177,178,179Hg, 178,179,179mTl(α) [from 102Pd(78Kr, xnyp) and subsequent decay]; measured Eα, T1/2, branching ratios. 174Au, 170Ir deduced levels. 178Tl, 170,171Ir deduced mass excess.

NUCLEAR REACTIONS 102Pd(78Kr, np), E=340 MeV; measured delayed Eα, αα-, (recoil)α-coin; deduced σ lower limit.

doi: 10.1103/PhysRevC.65.054310
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2001BA12      Phys.Rev.Lett. 86, 1454 (2001)

G.C.Ball, S.Bishop, J.A.Behr, G.C.Boisvert, P.Bricault, J.Cerny, J.M.D'Auria, M.Dombsky, J.C.Hardy, V.Iacob, J.R.Leslie, T.Lindner, J.A.Macdonald, H.-B.Mak, D.M.Moltz, J.Powell, G.Savard, I.S.Towner

Precise Half-Life Measurement for the Superallowed 0+ → 0+ β Emitter 74Rb: First results from the new radioactive beam facility (ISAC) at TRIUMF

RADIOACTIVITY 74Rb(β+) [from Nb(p, X)]; measured superallowed decay T1/2.

doi: 10.1103/PhysRevLett.86.1454
Citations: PlumX Metrics


2000JO12      Phys.Rev.Lett. 84, 5066 (2000)

R.Joosten, J.Powell, F.Q.Guo, P.E.Haustein, R.-M.Larimer, M.A.McMahan, E.B.Norman, J.P.O'Neil, M.W.Rowe, H.F.VanBrocklin, D.Wutte, X.J.Xu, J.Cerny

Measurement of Excitation Functions in the Reactions 197Au(11, xn)208-xAt Using a Radioactive 11C Beam

NUCLEAR REACTIONS 197Au(11C, 3n), (11C, 4n), (11C, 5n), (11C, 6n), (11C, 7n), (11C, 8n), (11C, 9n), E=60-110 MeV; measured excitation functions. Comparison with model predictions.

doi: 10.1103/PhysRevLett.84.5066
Citations: PlumX Metrics


1998RO13      Phys.Rev. C57, 2222 (1998)

M.W.Rowe, D.M.Moltz, T.J.Ognibene, J.Powell, J.Cerny

Search for Proton Decay from a Predicted Isomer of 77Rb

NUCLEAR REACTIONS 40Ca(40Ca, 3p), E=110-160 MeV; measured isomeric state production σ upper limit. Helium-jet transport, on-line mass separation.

doi: 10.1103/PhysRevC.57.2222
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1996BA35      Phys.Rev. C54, 949 (1996)

J.C.Batchelder, K.S.Toth, E.F.Zganjar, D.M.Moltz, C.R.Bingham, T.J.Ognibene, J.Powell, M.W.Rowe

Determination of the 190Po α Reduced Width

RADIOACTIVITY 190Po(α) [from 144Sm(48Si, 2n), E=215 MeV]; measured T1/2, Eα; deduced α-decay reduced width, mass excess.

doi: 10.1103/PhysRevC.54.949
Citations: PlumX Metrics


1996OG01      Phys.Rev. C54, 1098 (1996)

T.J.Ognibene, J.Powell, D.M.Moltz, M.W.Rowe, J.Cerny

Additional Results from the β-Delayed Proton Decays of 27P and 31Cl

RADIOACTIVITY 28,27P, 31Cl(β+p) [from Zn, Si(p, X), E=28, 45 MeV]; measured β-delayed Ep, Ip; deduced log ft, branching ratios, β strength function. Compared to theory.

doi: 10.1103/PhysRevC.54.1098
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1994AZ03      Phys.Rev. C50, 1194 (1994); Erratum Phys.Rev. C56, 1655 (1997)

R.E.Azuma, L.Buchmann, F.C.Barker, C.A.Barnes, J.M.D'Auria, M.Dombsky, U.Giesen, K.P.Jackson, J.D.King, R.G.Korteling, P.McNeely, J.Powell, G.Roy, J.Vincent, T.R.Wang, S.S.M.Wong, P.R.Wrean

Constraints on the Low-Energy E1 Cross Section of 12C(α, γ)16O from the β-Delayed α Spectrum of 16N

RADIOACTIVITY 16N(β-) [from on-line separation]; measured β-delayed α-spectrum, (α)(12C)-coin; deduced R-matrix, K-matrix level parameters relevant to 12C(α, γ) reaction. Thin Si surface barrier detector.

NUCLEAR REACTIONS, ICPND 12C(α, γ), E(cm) ≤ 3 MeV; calculated E1 part of astrophysical S-factor, σ(E); deduced R-matrix, K-matrix level parameters. Data of β--delayed α-spectrum of 16N-decay input.

doi: 10.1103/PhysRevC.50.1194
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1994DO08      Phys.Rev. C49, 1867 (1994)

M.Dombsky, L.Buchmann, J.M.D'Auria, U.Giesen, K.P.Jackson, J.D.King, E.Korkmaz, R.G.Korteling, P.McNeely, J.Powell, G.Roy, M.Trinczek, J.Vincent

β-Delayed α Decay of 17N

RADIOACTIVITY 17N(β-); measured β-delayed Eα, Iα, α(13C)-coin; deduced log ft, total βα-branching ratio. 17O deduced levels contributing to α-decay.

doi: 10.1103/PhysRevC.49.1867
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1993BU03      Phys.Rev.Lett. 70, 726 (1993)

L.Buchmann, R.E.Azuma, C.A.Barnes, J.M.D'Auria, M.Dombsky, U.Giesen, K.P.Jackson, J.D.King, R.G.Korteling, P.McNeely, J.Powell, G.Roy, J.Vincent, T.R.Wang, S.S.M.Wong, P.R.Wrean

β-Delayed α Spectrum of 16N and the 12C(α, γ)16O Cross Section at Low Energies

RADIOACTIVITY 16N(β-); measured β-delayed Eα, Iα, α(12C)-coin; deduced E1 part of 12C(α, γ) reaction, astrophysical S-factor.

doi: 10.1103/PhysRevLett.70.726
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1993BU18      J.Phys.(London) G19, S115 (1993)

L.Buchmann, R.E.Azuma, C.A.Barnes, A.Chen, J.Chen, J.M.D'Auria, M.Dombsky, U.Giesen, K.P.Jackson, J.D.King, R.Korteling, P.McNeely, J.Powell, G.Roy, M.Trinczek, J.Vincent, P.R.Wrean, S.S.M.Wong

The β-Delayed α Spectrum of 16N and the Low-Energy Extrapolation of the 12C(α, γ)16O Cross Section

RADIOACTIVITY 16N(β-); measured β-delayed Eα, Iα, βα-coin; deduced 12C(α, γ) reaction σ(E=low) implications.

doi: 10.1088/0954-3899/19/S/010
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1993BU21      Nucl.Instrum.Methods Phys.Res. B79, 330 (1993)

L.Buchmann, R.E.Azuma, C.A.Barnes, J.M.D'Auria, M.Dombsky, U.Giesen, K.P.Jackson, J.D.King, R.Korteling, P.McNeely, J.Powell, G.Roy, J.Vincent, S.S.M.Wong, P.R.Wrean

A Study of Beta Delayed Alpha Emission from 16N

RADIOACTIVITY 16N(β-); measured β-delayed α(12C)-coin. 18,17N(β-); measured β-delayed Eα, Iα; deduced 12C(α, γ) reaction p-wave capture amplitude.

doi: 10.1016/0168-583X(93)95357-B
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1952HA73      Phys.Rev. 87, 223 UA7 (1952)

H.H.Hall, J.L.Powell

The Scattering of Protons by Protons (IV)

NUCLEAR REACTIONS 1H(p, X), E not given; analyzed available data. 2H; deduced exchange effect, P contribution in terms of conventional triplet interactions including Majorana exchange.

doi: 10.1103/PhysRev.87.179
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Note: The following list of authors and aliases matches the search parameter J.Powell: , J.L.POWELL