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NSR database version of April 24, 2024.

Search: Author = R.T.Guray

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2018KO12      Phys.Rev. C 97, 045803 (2018)

Z.Korkulu, N.Ozkan, G.G.Kiss, T.Szucs, Gy.Gyurky, Zs.Fulop, R.T.Guray, Z.Halasz, T.Rauscher, E.Somorjai, Zs.Torok, C.Yalcin

Investigation of α-induced reactions on Sb isotopes relevant to the astrophysical γ process

NUCLEAR REACTIONS ^121,123Sn(α, n), ¹²¹Sn(α, γ), E=10.09-16 MeV; measured Eγ, Iγ from decay of reaction products, σ(E) by activation method at the MGC cyclotron accelerator of Atomki-Debrecen; deduced sensitivity of σ to variation of particle and radiative widths for ¹²¹Sn+α reactions. Comparison with previous experimental values, and with statistical model calculations using NON-SMOKER and SMARAGD codes. Discussed implications for astrophysical reaction rates in γ-process nucleosynthesis network.

doi: 10.1103/PhysRevC.97.045803
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD4393.

2017OZ01      Phys.Rev. C 96, 045805 (2017)

N.Ozkan, R.T.Guray, C.Yalcin, W.P.Tan, A.Aprahamian, M.Beard, R.J.deBoer, S.Almaraz-Calderon, S.Falahat, J.Gorres, Q.Li, A.Sauerwein, K.Sonnabend, M.Wiescher, Zs.Fulop, Gy.Gyurky, E.Somorjai, J.Greene

Proton capture reaction cross section measurements on ¹⁶²Er as a probe of statistical model calculations

NUCLEAR REACTIONS ¹⁶²Er(p, γ)¹⁶³Tm, ¹⁶²Er(p, n)¹⁶²Tm, E=4.0-9.0 MeV in steps of 0.5 MeV; measured reaction products, Eγ, Iγ, σ(E) by activation method using the FN tandem accelerator at the University of Notre Dame; deduced S factors. Comparison with Hauser Feshbach (HF) statistical model calculations using NON-SMOKER and TALYS codes.

doi: 10.1103/PhysRevC.96.045805
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2276.

2016OR09      Phys.Rev. C 94, 055807 (2016)

A.Ornelas, P.Mohr, Gy.Gyurky, Z.Elekes, Zs.Fulop, Z.Halasz, G.G.Kiss, E.Somorjai, T.Szucs, M.P.Takacs, D.Galaviz, R.T.Guray, Z.Korkulu, N.Ozkan, C.Yalcin

alpha scattering and alpha-induced reaction cross sections of ⁶⁴Zn at low energies

NUCLEAR REACTIONS ⁶⁴Zn(α, α), (α, α'), E=12.05, 16.12 MeV; measured scattered particle spectra, Eα, Iα, elastic σ(θ), inelastic σ(E) at the Atomki cyclotron facility; deduced total σ, parameters of optical potential, phase shifts and reflection coefficients using σ(θ) elastic data at Eα=13.4-50.5 MeV from previous studies and the present work, rise of the elastic cross sections at very backward angles considered as so-called anomalous large-angle elastic scattering (ALAS). ⁶⁴Zn(α, γ), (α, p), (α, n), E=16.12 MeV; measured Eγ, Iγ, σ using activation technique. Comparison with theoretical calculations based on different global α-nucleus optical potentials, and Hartree-Fock BCS γ-ray strength for (α, γ) channel.

doi: 10.1103/PhysRevC.94.055807
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD4366.

2015GU10      Phys.Rev. C 91, 055809 (2015)

R.T.Guray, N.Ozkan, C.Yalcin, T.Rauscher, Gy.Gyurky, J.Farkas, Zs.Fulop, Z.Halasz, E.Somorjai

Measurements of ¹⁵²Gd(p, γ)¹⁵³Tb and ¹⁵²Gd(p, n)¹⁵²Tb reaction cross sections for the astrophysical γ process

NUCLEAR REACTIONS ¹⁵²Gd(p, γ)¹⁵³Tb, E=3, 47-7.94 MeV; ¹⁵²Gd(p, n)¹⁵²Tb, E(cm)=4.96-7.94 MeV; measured reaction products, Eγ, Iγ, total σ(E) by activation method for the astrophysical γ process; deduced astrophysical reaction rates. Comparison with Hauser-Feshbach statistical model predictions using SMARAGD computer code.

doi: 10.1103/PhysRevC.91.055809
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD4329.

2015YA07      Phys.Rev. C 91, 034610 (2015)

C.Yalcin, Gy.Gyurky, T.Rauscher, G.G.Kiss, N.Ozkan, R.T.Guray, Z.Halasz, T.Szucs, Zs.Fulop, J.Farkas, Z.Korkulu, E.Somorjai

Test of statistical model cross section calculations for α-induced reactions on ¹⁰⁷Ag at energies of astrophysical interest

NUCLEAR REACTIONS ¹⁰⁷Ag(α, γ)¹¹¹In, E=8.16-13 MeV; ¹⁰⁷Ag(α, n)¹¹⁰In, E=9-13 MeV; measured Eγ, Iγ, σ(E) by activation method. Comparison with statistical model calculation using SMARAGD computer code, and with previous experimental results.

doi: 10.1103/PhysRevC.91.034610
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD4328.

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
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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
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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.

2013KI11      Phys.Rev. C 88, 045804 (2013)

G.G.Kiss, P.Mohr, Zs.Fulop, T.Rauscher, Gy.Gyurky, T.Szucs, Z.Halasz, E.Somorjai, A.Ornelas, C.Yalcin, R.T.Guray, N.Ozkan

High precision ¹¹³In(α, α)¹¹³In elastic scattering at energies near the Coulomb barrier for the astrophysical γ process

NUCLEAR REACTIONS ¹¹³In(α, α), E=16.15-19.15 MeV; measured E(α), I(α), σ(E, θ) at ATOMKI facility in Debrecen; deduced global α+nucleus optical model parameters. Comparison with reduced σ for ⁸⁹Y+α, ⁹²Mo+α, ^106,110,116Cd+α, ^112,124Sn+α and ¹⁴⁴Sm+α reactions. ¹¹³In(α, γ)¹¹⁷Sb, ¹¹³In(α, n)¹¹⁶Sb, E=8-15 MeV; deduced astrophysical S(E) factor, σ ratio. Relevance to γ process for production of p nuclei in supernova explosions.

doi: 10.1103/PhysRevC.88.045804
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD4297.

2012AL11      Phys.Rev. C 86, 025801 (2012); Pub.Note. Phys.Rev. C 86, 029901 (2012)

S.Almaraz-Calderon, W.P.Tan, A.Aprahamian, B.Bucher, A.Roberts, M.Wiescher, C.R.Brune, T.N.Massey, N.Ozkan, R.T.Guray, H.Mach

Level structure of ¹⁸Ne and its importance in the ¹⁴O(α, p)¹⁷F reaction rate

NUCLEAR REACTIONS ¹⁶O(³He, n), E=15 MeV; measured neutron and charged particle spectra, (particle)n-coin, neutron time-of-flight spectrum, p(θ), branching ratios for proton, 2p and α decays of excited states. ¹⁸Ne; deduced levels, resonances, J, π, decay modes, widths. ^14,16O, ¹⁷F; populated g.s. from p, 2p and α decays of ¹⁸Ne resonances, and first excited state in ¹⁷F from p decay of ¹⁸Ne resonances. ¹⁴O(α, p)¹⁷F, T=0.1-5 GK; calculated reaction rates of astrophysical interest for Hot CNO cycles and their breakout paths towards the rp process. Comparison with previous studies.

doi: 10.1103/PhysRevC.86.025801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1943. Data from this article have been entered in the XUNDL database. For more information, click here.

2012KI15      J.Phys.:Conf.Ser. 337, 012029 (2012)

G.G.Kiss, P.Mohr, Zs.Fulop, Gy.Gyurky, Z.Elekes, J.Farkas, E.Somorjai, D.Galaviz, R.T.Guray, N.Ozkan, C.Yalcin, J.Gorres

Investigating the variation of elastic alpha scattering cross sections in the A ∼ 100 region

NUCLEAR REACTIONS ^110,116Cd(α, α), E=16.14, 19.46 MeV; measured Eα, Iα(θ); deduced σ(θ); calculated σ(θ) using optical model with various parameters sets.

doi: 10.1088/1742-6596/337/1/012029
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2012PA03      Phys.Rev. C 85, 028801 (2012)

A.Palumbo, W.P.Tan, J.Gorres, M.Wiescher, N.Ozkan, R.T.Guray, C.Yalcin

Measurement of ¹²⁰Te(α, n) cross sections relevant to the astrophysical p process

NUCLEAR REACTIONS ¹²⁰Te(α, n), E(cm)=9.99, 10.14, 10.63 MeV; measured Eγ, Iγ, cross section by activation technique; deduced S factor. Comparison with Hauser-Feshbach (HF) calculations using CIGAR computer code, and TALYS code.

doi: 10.1103/PhysRevC.85.028801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1888.

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, ^{120,124,126,128,130}Te(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.

2011KI15      Phys.Rev. C 83, 065807 (2011)

G.G.Kiss, P.Mohr, Zs.Fulop, Gy.Gyurky, Z.Elekes, J.Farkas, E.Somorjai, C.Yalcin, D.Galaviz, R.T.Guray, N.Ozkan, J.Gorres

^{110, 116}Cd(α, α)^{110, 116}Cd elastic scattering and systematic investigation of elastic α scattering cross sections along the Z=48 isotopic and N=62 isotonic chains

NUCLEAR REACTIONS ^110,116Cd(α, α'), E=16.4, 19.46 MeV; measured Eα, yields and σ(θ). ¹⁰⁶Cd, ¹¹²Sn(α, α'), E(cm)=15.6, 18.9 MeV; analyzed σ(θ) data. ^110,116Cd(α, α), E=8-20 MeV; analyzed σ(E) data. Optical model analysis and predictions. Global parameterization of the α-nucleus potential used in astrophysical p-process calculations.

doi: 10.1103/PhysRevC.83.065807
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD4251.

2010GY02      J.Phys.(London) G37, 115201 (2010)

Gy.Gyurky, Z.Elekes, J.Farkas, Zs.Fulop, Z.Halasz, G.G.Kiss, E.Somorjai, T.Szucs, R.T.Guray, N.Ozkan, C.Yalcin, T.Rauscher

Alpha-induced reaction cross section measurements on ¹⁵¹Eu for the astrophysical γ-process

NUCLEAR REACTIONS ¹⁵¹Eu(α, γ), (α, n), E=11.5-17.5 MeV; measured Eγ, Iγ; deduced T_1/2, σ, S-factors, using activation method. Statistical model calculations using NON-SMOKER model. Relevance to astrophysical γ process.

doi: 10.1088/0954-3899/37/11/115201
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD4241.

2010GY03      J.Phys.:Conf.Ser. 202, 012004 (2010)

Gy.Gyurky, Z.Elekes, J.Farkas, Z.S.Fulop, G.G.Kiss, E.Somorjai, T.Szucs, R.T.Guray, N.Ozkan, C.Yalcin, T.Rauscher

Alpha-induced reactions for the astrophysical p-process: The case of ¹⁵¹Eu

NUCLEAR REACTIONS ¹⁵¹Eu(α, γ), (α, n), E=11.5-17.5 MeV; measured Eγ, Iγ; deduced σ, S-factors using activation technique; calculated S-factors using NON-SMOKER code with different α optical model potentials.

doi: 10.1088/1742-6596/202/1/012004
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1742.

2009YA08      Phys.Rev. C 79, 065801 (2009)

C.Yalcin, R.T.Guray, N.Ozkan, S.Kutlu, Gy.Gyurky, J.Farkas, G.G.Kiss, Zs.Fulop, A.Simon, E.Somorjai, T.Rauscher

Odd p isotope ¹¹³In: Measurement of α-induced reactions

NUCLEAR REACTIONS ¹¹³In(α, γ), (α, n)¹¹⁶Sb/^116mSb/¹¹⁷Sb, E(cm)=8.66-13.64 MeV; measured Eγ, Iγ, σ, astrophysical S factors. Comparison with statistical model calculations.

doi: 10.1103/PhysRevC.79.065801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1715.

2007OZ01      Phys.Rev. C 75, 025801 (2007)

N.Ozkan, G.Efe, R.T.Guray, A.Palumbo, J.Gorres, H.Y.Lee, L.O.Lamm, W.Rapp, E.Stech, M.Wiescher, Gy.Gyurky, Zs.Fulop, E.Somorjai

Astrophysical S factor for α-capture on ¹¹²Sn in the p-process energy range

NUCLEAR REACTIONS ¹¹²Sn(α, γ), (α, p), E(cm)=7.59-11.42 MeV; measured σ; deduced astrophysical S-factors. Activation technique.

doi: 10.1103/PhysRevC.75.025801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1555.

2006GY01      Phys.Rev. C 74, 025805 (2006)

Gy.Gyurky, G.G.Kiss, Z.Elekes, Zs.Fulop, E.Somorjai, A.Palumbo, J.Gorres, H.Y.Lee, W.Rapp, M.Wiescher, N.Ozkan, R.T.Guray, G.Efe, T.Rauscher

α-induced cross sections of ¹⁰⁶Cd for the astrophysical p process

NUCLEAR REACTIONS ¹⁰⁶Cd(α, γ), (α, n), (α, p), E ≈ 7.5-12.5 MeV; measured σ; deduced S-factors. Comparison with statistical model predictions. Astrophysical implications discussed.

doi: 10.1103/PhysRevC.74.025805
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD4169.

2006OZ05      Eur.Phys.J. A 27, Supplement 1, 145 (2006)

N.Ozkan, G.Efe, R.T.Guray, A.Palumbo, M.Wiescher, J.Gorres, H.-Y.Lee, Gy.Gyurky, E.Somorjai, Zs.Fulop

A study of alpha capture cross-sections of ¹¹²Sn

NUCLEAR REACTIONS ¹¹²Sn(α, γ), E=8-12 MeV; measured σ. Activation technique.

doi: 10.1140/epja/i2006-08-021-x
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1443.

2003SA07      Phys.Rev. C 67, 024606 (2003)

P.Santi, J.J.Kolata, V.Guimaraes, D.Peterson, R.White-Stevens, E.Rischette, D.Bazin, B.M.Sherrill, A.Navin, P.A.DeYoung, P.L.Jolivette, G.F.Peaslee, R.T.Guray

Structure of the ¹⁰Li nucleus investigated via the ⁹Li(d, p)¹⁰Li reaction

NUCLEAR REACTIONS ²H(⁹Li, p), (¹³C, p), E=20 MeV/nucleon; measured particle spectra, (fragment)p-coin, angular distributions. ^9,10Li deduced ground-state mass excess lower limits. ¹⁰Li deduced neutron decay branching ratio, resonance features. S800 spectrograph.

doi: 10.1103/PhysRevC.67.024606
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2002OZ04      Nucl.Phys. A710, 469 (2002)

N.Ozkan, A.St.J.Murphy, R.N.Boyd, A.L.Cole, M.Famiano, R.T.Guray, M.Howard, L.Sahin, J.J.Zach, R.deHaan, J.Gorres, M.C.Wiescher, M.S.Islam, T.Rauscher

Cross section measurements of the ¹⁰²Pd(p, γ)¹⁰³Ag, ¹¹⁶Sn(p, γ)¹¹⁷Sb, and ¹¹²Sn(α, γ)¹¹⁶Te reactions relevant to the astrophysical rp- and γ-processes

NUCLEAR REACTIONS ¹⁰²Pd, ¹¹⁶Sn(p, γ), E=2.6-4.25 MeV; ¹¹²Sn(α, γ), E=7.0-10.5 MeV; measured total σ; deduced astrophysical S-factors, reaction rates. Activation technique.

doi: 10.1016/S0375-9474(02)01134-X
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0904.

2002SA09      Phys.Rev. C65, 038801 (2002)

L.Sahin, R.N.Boyd, A.L.Cole, M.Famiano, R.T.Guray, A.St.J.Murphy, N.Ozkan, J.J.Kolata, V.Guimaraes, M.Hencheck

Measurement of the Cross Section of the ⁸Li(d, α)⁶He Reaction of Possible Relevance to Big Bang Nucleosynthesis

NUCLEAR REACTIONS ²H(⁶Li, α), E(cm)=2.3-3.5 MeV; measured σ, σ(θ). ⁶Li(d, α), E(cm)=2.3-3.5 MeV; deduced σ, astrophysical S-factor. Implications for primordial nucleosynthesis discussed.

doi: 10.1103/PhysRevC.65.038801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0870.

2001OZ02      Nucl.Phys. A688, 459c (2001)

N.Ozkan, A.StJ.Murphy, R.N.Boyd, A.L.Cole, R.de Haan, M.Famiano, J.Goerres, R.T.Guray, M.Howard, L.Sahin, M.C.Wiescher

Proton Radiative Capture Cross Sections on ¹⁰²Pd at Energies of Astrophysical Interest

NUCLEAR REACTIONS ¹⁰²Pd(p, γ), E=2.6-4.25 MeV; measured Eγ, σ. Comparison with Statistical Model calculations.

doi: 10.1016/S0375-9474(01)00755-2
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0904.

1999CH17      Nucl.Phys. A652, 391 (1999)

F.R.Chloupek, A.St.J.Murphy, R.N.Boyd, A.L.Cole, J.Gorres, R.T.Guray, G.Raimann, J.J.Zach, T.Rauscher, J.V.Schwarzenberg, P.Tischhauser, M.C.Wiescher

Measurements of Proton Radiative Capture Cross Sections Relevant to the Astrophysical rp- and γ-Processes

NUCLEAR REACTIONS ⁹⁶Zr, ^112,119Sn(p, γ), E=2.8-8.5 MeV; measured σ; deduced astrophysical S-factors. Comparison with statistical model.

doi: 10.1016/S0375-9474(99)00167-0
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0556.