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⁷⁰Ge(p,γ)⁷¹As and ⁷⁶Ge(p,n)⁷⁶As cross sections for the astrophysical p process : sensitivity of the optical proton potential at low energies

Kiss, G. G. and Gyuerky, Gy. and Elekes, Z. and Fueloep, Zs. and Somorjai, E. and Rauscher, T.. (2007) ⁷⁰Ge(p,γ)⁷¹As and ⁷⁶Ge(p,n)⁷⁶As cross sections for the astrophysical p process : sensitivity of the optical proton potential at low energies. Physical review. C, Nuclear physics, Vol. 76, H. 5 , 055807, 9 S..

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Official URL: http://edoc.unibas.ch/dok/A5253880

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Abstract

The cross sections of the Ge-70(p,gamma)As-71 and Ge-76(p,n)As-76 reactions have been measured with the activation method in the Gamow window for the astrophysical p process. The experiments were carried out at the Van de Graaff and cyclotron accelerators of ATOMKI. The cross sections have been derived by measuring the decay gamma-radiation of the reaction products. The results are compared to the predictions of Hauser-Feshbach statistical model calculations using the code NON-SMOKER. Good agreement between theoretical and experimental S factors is found. Based on the new data, modifications of the optical potential used for low-energy protons are discussed.
Faculties and Departments:05 Faculty of Science > Departement Physik > Former Organization Units Physics > Theoretische Physik Astrophysik (Thielemann)
UniBasel Contributors:Rauscher, Thomas
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:American Institute of Physics
ISSN:0556-2813
Note:Variant title: Ge-70(p,gamma)As-71 and Ge-76(p,n)As-76 cross sections for the astrophysical p process : sensitivity of the optical proton potential at low energies -- Publication type according to Uni Basel Research Database: Journal article
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Last Modified:22 Mar 2012 14:26
Deposited On:22 Mar 2012 13:49

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