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NSR database version of May 24, 2024.

Search: Author = P.J.Leblanc

Found 17 matches.

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2016LI29      Phys.Rev. C 93, 055806 (2016)

Q.Li, J.Gorres, R.J.deBoer, G.Imbriani, A.Best, A.Kontos, P.J.LeBlanc, E.Uberseder, M.Wiescher

Cross section measurement of 14N(p, γ)15O in the CNO cycle

NUCLEAR REACTIONS 14N(p, γ)15O, E=0.7-3.6 MeV; measured Eγ, Iγ, γ(θ), differential σ(E) for ground-state and 6.79 MeV transitions using the 1MV JN and 4 MV KN Van de Graaff accelerators at the University of Notre Dame. TiN and implanted 14N targets. 15O; deduced levels, resonances, J, π, astrophysical S factors. Multichannel R-matrix analysis. Relevance to CNO cycle in stars.

doi: 10.1103/PhysRevC.93.055806
Citations: PlumX Metrics

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


2015DE11      Phys.Rev. C 91, 045804 (2015)

R.J.de Boer, D.W.Bardayan, J.Gorres, P.J.LeBlanc, K.V.Manukyan, M.T.Moran, K.Smith, W.Tan, E.Uberseder, M.Wiescher, P.F.Bertone, A.E.Champagne, M.S.Islam

Low energy scattering cross section ratios of 14N(p, p)14N

NUCLEAR REACTIONS 14N(p, p), E=1-4 MeV; measured E(p), I(p), σ(θ, E) at Notre Dame Van de Graaff accelerator facility. 15O; deduced levels, resonances, l-transfers, J, π, resonance parameters, widths. R-matrix analysis. Discussed relevance of proton scattering data for constraining astrophysically important capture rate analyses.

doi: 10.1103/PhysRevC.91.045804
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2160. Data from this article have been entered in the XUNDL database. For more information, click here.


2013BE11      Phys.Rev. C 87, 045805 (2013)

A.Best, M.Beard, J.Gorres, M.Couder, R.deBoer, S.Falahat, R.T.Guray, A.Kontos, K.-L.Kratz, P.J.LeBlanc, Q.Li, S.O'Brien, N.Ozkan, M.Pignatari, K.Sonnabend, R.Talwar, W.Tan, E.Uberseder, M.Wiescher

Measurement of the reaction 17O(α, n)20Ne and its impact on the s process in massive stars

NUCLEAR REACTIONS 17O(α, n), E=800-2300 keV; measured Eγ, Iγ, E(n), I(n), yields as function of incident Eα for (α, n0) and (α, n1) channels; deduced R-matrix parameters, S factors, reaction rates. 21Ne; deduced levels, resonances, J, π, width, resonance strengths. R-matrix analyses. 17O(α, n), (α, γ), E at 0.1 to 10 GK; comparison of experimental and theoretical (NACRE, CF88/1000) reaction rates. Hauser-Feshbach theory. Astrophysical implications for the s-process, and elemental abundance.

doi: 10.1103/PhysRevC.87.045805
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2007. Data from this article have been entered in the XUNDL database. For more information, click here.


2013BE12      Phys.Rev. C 87, 045806 (2013)

A.Best, S.Falahat, J.Gorres, M.Couder, R.deBoer, R.T.Guray, A.Kontos, K.-L.Kratz, P.J.LeBlanc, Q.Li, S.O'Brien, N.Ozkan, K.Sonnabend, R.Talwar, E.Uberseder, M.Wiescher

Measurement of the reaction 18O(α, n)21Ne

NUCLEAR REACTIONS 18O(α, n), E=851-2300 keV; measured Eγ, Iγ, E(n), I(n), yields as function of incident Eα for (α, n0) and (α, n1) channels; deduced R-matrix parameters, S factors, reaction rates. 22Ne; deduced levels, resonances, J, π, width, resonance strengths. R-matrix analyses. 18O(α, n), (α, γ), E at 0.1 to 10 GK; comparison of experimental and theoretical (NACRE, CF88) reaction rates. Hauser-Feshbach theory.

doi: 10.1103/PhysRevC.87.045806
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2009. Data from this article have been entered in the XUNDL database. For more information, click here.


2013DE03      Phys.Rev. C 87, 015802 (2013)

R.J.de Boer, J.Gorres, G.Imbriani, P.J.LeBlanc, E.Uberseder, M.Wiescher

R-matrix analysis of 16O compound nucleus reactions

NUCLEAR REACTIONS 15N(p, γ)16O, 15N(p, α)12C, 15N(p, p), E<1.8 MeV; 12C(α, p)15N, 12C(α, α), 12C(α, γ)16O, E=6.8-8.3 MeV; analyzed S factors, σ(E, θ), yields for all available reaction channels simultaneously using a multichannel R-matrix code AZURE. 16O; deduced R-matrix description for the broad level structure.

doi: 10.1103/PhysRevC.87.015802
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1825.


2012DE06      Phys.Rev. C 85, 038801 (2012)

R.J.de Boer, P.J.LeBlanc, S.Falahat, G.Imbriani, J.Gorres, S.O'Brien, E.Uberseder, M.Wiescher

Elastic scattering of protons from 15N

NUCLEAR REACTIONS 15N(p, p), (p, α), E=0.6-1.8 MeV; measured particle spectra, σ(E, θ), yields. 16O; deduced resonances, levels, J, π, widths. R-matrix analysis. Comparison with previous studies. Relevance to 15N(p, γ)16O reaction cross sections at stellar energies.

doi: 10.1103/PhysRevC.85.038801
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1907. Data from this article have been entered in the XUNDL database. For more information, click here.


2012IM02      Phys.Rev. C 85, 065810 (2012), Erratum Phys.Rev. C 86, 039902 (2012)

G.Imbriani, R.J.de Boer, A.Best, M.Couder, G.Gervino, J.Gorres, P.J.LeBlanc, H.Leiste, A.Lemut, E.Stech, F.Strieder, E.Uberseder, M.Wiescher

Measurement of γ rays from 15N(p, γ)16O cascade and 15N(p, α1γ)12C reactions

NUCLEAR REACTIONS 15N(p, γ)16O, 15N(p, αγ)12C, E=0.14-1.80 MeV; measured Eγ, Iγ, S factors, cross section. 12C, 16O; deduced levels, J, π, widths. R-matrix analysis. Comparison with previous studies.

doi: 10.1103/PhysRevC.85.065810
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1936. Data from this article have been entered in the XUNDL database. For more information, click here.


2012PA08      Phys.Rev. C 85, 035808 (2012), Erratum Phys.Rev. C 88, 039902 (2013)

A.Palumbo, W.P.Tan, J.Gorres, A.Best, M.Couder, R.Crowter, R.J.de Boer, S.Falahat, P.J.LeBlanc, H.Y.Lee, S.O'Brien, E.Strandberg, M.Wiescher, J.P.Greene, Zs.Fulop, G.G.Kiss, E.Somorjai, N.Ozkan, G.Efe, R.T.Guray

Systematic study of the α-optical potential via elastic scattering near the Z=50 region for p-process nuclei

NUCLEAR REACTIONS 106Cd, 118Sn, 120,124,126,128,130Te(α, α), E=17-27 MeV; measured Eα, Iα, σ(E, θ). 106Cd, 112Sn(α, γ), E(cm)=7-12.5 MeV; 106Cd, 120Te(α, n), E(cm)=9.7-12.5 MeV; 118Sn(α, n), E=11-16.5 MeV; 106Cd(α, p), E(cm)=8.6-10.3 MeV; 112Sn(α, p), E(cm)=9.2-12.0 MeV; deduced σ and S factors relevant to p-process nuclei. Optical model analysis. HF statistical model calculations. Comparisons with other measurements.

doi: 10.1103/PhysRevC.85.035808
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1739.


2011BE17      Phys.Rev. C 83, 052802 (2011)

A.Best, J.Gorres, M.Couder, R.deBoer, S.Falahat, A.Kontos, P.J.LeBlanc, Q.Li, S.O'Brien, K.Sonnabend, R.Talwar, E.Uberseder, M.Wiescher

First direct measurement of resonance strengths in 17O(α, γ)21Ne

NUCLEAR REACTIONS 17O(α, γ), E=750-1650 keV; measured Eγ, Iγ. 21Ne; deduced resonances, resonance strengths, levels, J, π, γ-branching ratios. Implications for neutron poisoning efficiency of 16O in the weak s-process. Comparison with previous experimental data, Caughlan-Fowler reaction rates, and calculated rates based on a microscopic three-cluster model of Descouvemont.

doi: 10.1103/PhysRevC.83.052802
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1846. Data from this article have been entered in the XUNDL database. For more information, click here.


2010AZ01      Phys.Rev. C 81, 045805 (2010)

R.E.Azuma, E.Uberseder, E.C.Simpson, C.R.Brune, H.Costantini, R.J.de Boer, J.Gorres, M.Heil, P.J.LeBlanc, C.Ugalde, M.Wiescher

AZURE: An R-matrix code for nuclear astrophysics

NUCLEAR REACTIONS 12C(p, γ), (p, p), 14N(p, γ), E=0.2-2.5 MeV; 16O(p, γ), E=0.23-3.75 MeV; analyzed σ(θ), proton widths, γ widths, S factor and nuclear phase shift using R-matrix analysis. Description of AZURE code for R-matrix analysis of reactions relevant to nuclear astrophysics.

doi: 10.1103/PhysRevC.81.045805
Citations: PlumX Metrics


2010CO12      Phys.Rev. C 82, 035802 (2010)

H.Costantini, R.J.de Boer, R.E.Azuma, M.Couder, J.Gorres, J.W.Hammer, P.J.LeBlanc, H.Y.Lee, S.O'Brien, A.Palumbo, E.C.Simpson, E.Stech, W.Tan, E.Uberseder, M.Wiescher

16O(α, γ)20Ne S factor: Measurements and R-matrix analysis

NUCLEAR REACTIONS 16O(α, γ), E=2.5 MeV; measured Eγ, Iγ, γγ-coin, Eα, Iα. 20Ne; deduced levels, J, π, resonances, width, yields, branching ratios, S factors, reaction rates. R-matrix analysis.

doi: 10.1103/PhysRevC.82.035802
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1819. Data from this article have been entered in the XUNDL database. For more information, click here.


2010LE21      Phys.Rev. C 82, 055804 (2010), Erratum Phys.Rev. C 84, 019902 (2011)

P.J.LeBlanc, G.Imbriani, J.Gorres, M.Junker, R.Azuma, M.Beard, D.Bemmerer, A.Best, C.Broggini, A.Caciolli, P.Corvisiero, H.Costantini, M.Couder, R.deBoer, Z.Elekes, S.Falahat, A.Formicola, Zs.Fulop, G.Gervino, A.Guglielmetti, C.Gustavino, Gy.Gyurky, F.Kappeler, A.Kontos, R.Kuntz, H.Leiste, A.Lemut Q.Li, B.Limata, M.Marta, C.Mazzocchi, R.Menegazzo, S.O'Brien, A.Palumbo, P.Prati, V.Roca, C.Rolfs, C.Rossi Alvarez, E.Somorjai, E.Stech, O.Straniero, F.Strieder, W.Tan, F.Terrasi, H.P.Trautvetter, E.Uberseder, M.Wiescher

Constraining the S factor of 15N(p, γ)16O at astrophysical energies

NUCLEAR REACTIONS 15N(p, γ), E=130-1800 keV; measured Ep, Ip, Eγ, Iγ, σ(E), σ(θ); deduced resonances, branching ratios, astrophysical S factors and reaction rates. Multilevel R-matrix analysis. Implications for the first and second cycles of the CNO cycles.

doi: 10.1103/PhysRevC.82.055804
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1825. Data from this article have been entered in the XUNDL database. For more information, click here.


2009GU27      Phys.Rev. C 80, 035804 (2009)

R.T.Guray, N.Ozkan, C.Yalcin, A.Palumbo, R.deBoer, J.Gorres, P.J.Leblanc, S.O'Brien, E.Strandberg, W.P.Tan, M.Wiescher, Zs.Fulop, E.Somorjai, H.Y.Lee, J.P.Greene

Measurements of proton-induced reaction cross sections on 120Te for the astrophysical p process

NUCLEAR REACTIONS 120Te(p, γ), (p, n), E(cm)=2.47-7.93 MeV; measured Eγ, Iγ, half-life, σ by activation method; deduced astrophysical S factors. Comparison with statistical model calculations using NON-SMOKER and TALYS computer codes.

RADIOACTIVITY 120I(EC); measured Eγ. 120I; deduced ground-state half-life.

doi: 10.1103/PhysRevC.80.035804
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1742.


2009LE23      Phys.Rev. C 80, 025805 (2009)

H.Y.Lee, M.Couder, A.Couture, S.Falahat, J.Gorres, L.Lamm, P.J.LeBlanc, S.O'Brien, A.Palumbo, E.Stech, E.Strandberg, W.Tan, C.Ugalde, M.Wiescher

Cross-section measurement of the 18F(α, p)21Ne reaction and possible implication for neutron production in explosive helium burning

NUCLEAR REACTIONS 21Ne(p, α)18F, E=2.3-4.0 MeV; measured Eγ, Iγ, decay curves, half-lives; deduced reaction yields and σ by R-matrix analysis. 18F(α, p)21Ne, E=0.5-2.1 MeV; deduced σ and reaction rates. Comparison with Hauser-Feshbach calculations. Discussed implications for astrophysical r-process and evolution of elemental abundances in supernovae.

doi: 10.1103/PhysRevC.80.025805
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1734.


2009TA09      Phys.Rev. C 79, 055805 (2009)

W.P.Tan, J.Gorres, M.Beard, M.Couder, A.Couture, S.Falahat, J.L.Fisker, L.Lamm, P.J.LeBlanc, H.Y.Lee, S.O'Brien, A.Palumbo, E.Stech, E.Strandberg, M.Wiescher

Measurement of the decay branching ratios of the α-unbound states in 19Ne and the 15O(α, γ) reaction rate

NUCLEAR REACTIONS 19F(3He, t), E=24 MeV; measured triton spectra, tα-coin, α(θ), α-decay branching ratios. 19Ne; deduced levels, J, π, α-unbound resonances. 15O(α, γ); deduced reaction rates versus temperature.

doi: 10.1103/PhysRevC.79.055805
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1707. Data from this article have been entered in the XUNDL database. For more information, click here.


2008CO03      Phys.Rev. C 77, 015802 (2008)

A.Couture, M.Beard, M.Couder, J.Gorres, L.Lamm, P.J.LeBlanc, H.Y.Lee, S.O'Brien, A.Palumbo, E.Stech, E.Strandberg, W.Tan, E.Uberseder, C.Ugalde, M.Wiescher, R.Azuma

Measurement of the 19F(p, γ)20Ne reaction and interference terms from Ec.m.=200-760 keV

NUCLEAR REACTIONS 19F(p, γ), E(cm)=200-700 keV; measured Eγ, Iγ, resonance parameters, interference signs. 20Ne, 16O, 19F; deduced levels, J, π.

doi: 10.1103/PhysRevC.77.015802
Citations: PlumX Metrics

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


2008ST11      Phys.Rev. C 77, 055801 (2008)

E.Strandberg, M.Beard, M.Couder, A.Couture, S.Falahat, J.Gorres, P.J.LeBlanc, H.Y.Lee, S.O'Brien, A.Palumbo, E.Stech, W.P.Tan, C.Ugalde, M.Wiescher, H.Costantini, K.Scheller, M.Pignatari, R.Azuma, L.Buchmann

24Mg(α, γ)28Si resonance parameters at low alpha-particle energies

NUCLEAR REACTIONS 24Mg(α, γ), E=1.0-1.5 MeV; measured Eγ, Iγ, γγ-coin, branching ratios, resonance strengths. 28Si; deduced levels, J, π, reaction rates. 13C, 17O, 21,22Ne, 25Mg(α, n); 16O, 20Ne(α, γ); 23Na, 24Mg, 27Al(p, γ); 23Na, 24Mg, 27Al, 28Si(n, γ); 25Al(γ, p); 27Al(p, α); analyzed reaction rates.

doi: 10.1103/PhysRevC.77.055801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1627. Data from this article have been entered in the XUNDL database. For more information, click here.


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