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

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Alpha-induced reaction cross section measurements on Eu-151 for the astrophysical gamma-process. / Gyuerky, Gy.; Elekes, Z.; Farkas, J.; Fueloep, Zs.; Halasz, Z.; Kiss, G. G.; Somorjai, E.; Szuecs, T.; Guray, R. T.; Ozkan, N.; Yalcin, C.; Rauscher, T.

In: Journal of Physics G: Nuclear and Particle Physics, Vol. 37, No. 11, 115201, 11.2010.

Research output: Contribution to journalArticlepeer-review

Harvard

Gyuerky, G, Elekes, Z, Farkas, J, Fueloep, Z, Halasz, Z, Kiss, GG, Somorjai, E, Szuecs, T, Guray, RT, Ozkan, N, Yalcin, C & Rauscher, T 2010, 'Alpha-induced reaction cross section measurements on Eu-151 for the astrophysical gamma-process', Journal of Physics G: Nuclear and Particle Physics, vol. 37, no. 11, 115201. https://doi.org/10.1088/0954-3899/37/11/115201

APA

Gyuerky, G., Elekes, Z., Farkas, J., Fueloep, Z., Halasz, Z., Kiss, G. G., Somorjai, E., Szuecs, T., Guray, R. T., Ozkan, N., Yalcin, C., & Rauscher, T. (2010). Alpha-induced reaction cross section measurements on Eu-151 for the astrophysical gamma-process. Journal of Physics G: Nuclear and Particle Physics, 37(11), [115201]. https://doi.org/10.1088/0954-3899/37/11/115201

Vancouver

Author

Gyuerky, Gy. ; Elekes, Z. ; Farkas, J. ; Fueloep, Zs. ; Halasz, Z. ; Kiss, G. G. ; Somorjai, E. ; Szuecs, T. ; Guray, R. T. ; Ozkan, N. ; Yalcin, C. ; Rauscher, T. / Alpha-induced reaction cross section measurements on Eu-151 for the astrophysical gamma-process. In: Journal of Physics G: Nuclear and Particle Physics. 2010 ; Vol. 37, No. 11.

Bibtex

@article{3891807e72aa4ffdb5e369f0107d868c,
title = "Alpha-induced reaction cross section measurements on Eu-151 for the astrophysical gamma-process",
abstract = "In order to extend the experimental database relevant for the astrophysical gamma-process towards the unexplored heavier mass region, the cross sections of the Eu-151(alpha, gamma)Tb-155 and Eu-151 (alpha, n)Tb-154 reactions have been measured at low energies between 12 and 17 MeV using the activation technique. The results are compared with the predictions of statistical model calculations and it is found that the calculations overestimate the cross sections by about a factor of 2. A sensitivity analysis shows that this discrepancy is caused by the inadequate description of the alpha+nucleus channel. A factor of 2 reduction of the reaction rate of Eu-151(alpha, gamma)Tb-155 in gamma-process network calculations with respect to theoretical rates using the optical potential by McFadden and Satchler (1966 Nucl. Phys. 84 177) is recommended.",
keywords = "NUCLEAR, STATISTICAL-MODEL CALCULATIONS, SCATTERING, PROCESS NUCLEOSYNTHESIS, MASSIVE STARS, S-PROCESS, RP-PROCESS, REACTION-RATES, STELLAR NUCLEOSYNTHESIS, P-PROCESS",
author = "Gy. Gyuerky and Z. Elekes and J. Farkas and Zs. Fueloep and Z. Halasz and Kiss, {G. G.} and E. Somorjai and T. Szuecs and Guray, {R. T.} and N. Ozkan and C. Yalcin and T. Rauscher",
year = "2010",
month = nov,
doi = "10.1088/0954-3899/37/11/115201",
language = "English",
volume = "37",
journal = "Journal of Physics G: Nuclear and Particle Physics",
issn = "0954-3899",
publisher = "IOP Publishing Ltd.",
number = "11",

}

RIS

TY - JOUR

T1 - Alpha-induced reaction cross section measurements on Eu-151 for the astrophysical gamma-process

AU - Gyuerky, Gy.

AU - Elekes, Z.

AU - Farkas, J.

AU - Fueloep, Zs.

AU - Halasz, Z.

AU - Kiss, G. G.

AU - Somorjai, E.

AU - Szuecs, T.

AU - Guray, R. T.

AU - Ozkan, N.

AU - Yalcin, C.

AU - Rauscher, T.

PY - 2010/11

Y1 - 2010/11

N2 - In order to extend the experimental database relevant for the astrophysical gamma-process towards the unexplored heavier mass region, the cross sections of the Eu-151(alpha, gamma)Tb-155 and Eu-151 (alpha, n)Tb-154 reactions have been measured at low energies between 12 and 17 MeV using the activation technique. The results are compared with the predictions of statistical model calculations and it is found that the calculations overestimate the cross sections by about a factor of 2. A sensitivity analysis shows that this discrepancy is caused by the inadequate description of the alpha+nucleus channel. A factor of 2 reduction of the reaction rate of Eu-151(alpha, gamma)Tb-155 in gamma-process network calculations with respect to theoretical rates using the optical potential by McFadden and Satchler (1966 Nucl. Phys. 84 177) is recommended.

AB - In order to extend the experimental database relevant for the astrophysical gamma-process towards the unexplored heavier mass region, the cross sections of the Eu-151(alpha, gamma)Tb-155 and Eu-151 (alpha, n)Tb-154 reactions have been measured at low energies between 12 and 17 MeV using the activation technique. The results are compared with the predictions of statistical model calculations and it is found that the calculations overestimate the cross sections by about a factor of 2. A sensitivity analysis shows that this discrepancy is caused by the inadequate description of the alpha+nucleus channel. A factor of 2 reduction of the reaction rate of Eu-151(alpha, gamma)Tb-155 in gamma-process network calculations with respect to theoretical rates using the optical potential by McFadden and Satchler (1966 Nucl. Phys. 84 177) is recommended.

KW - NUCLEAR

KW - STATISTICAL-MODEL CALCULATIONS

KW - SCATTERING

KW - PROCESS NUCLEOSYNTHESIS

KW - MASSIVE STARS

KW - S-PROCESS

KW - RP-PROCESS

KW - REACTION-RATES

KW - STELLAR NUCLEOSYNTHESIS

KW - P-PROCESS

U2 - 10.1088/0954-3899/37/11/115201

DO - 10.1088/0954-3899/37/11/115201

M3 - Article

VL - 37

JO - Journal of Physics G: Nuclear and Particle Physics

JF - Journal of Physics G: Nuclear and Particle Physics

SN - 0954-3899

IS - 11

M1 - 115201

ER -