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Investigation of proton-induced reactions on Germanium isotopes

G G Kiss1, Gy Gyürky1, Z Elekes1, Zs Fülöp1, E Somorjai1, T Rauscher2 and M Wiescher3

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The cross sections of the 70Ge(p,γ)71As and 76Ge(p,n)76As reactions have been measured in the energy range relevant for the astrophysical p-process (1.6–4.4 MeV). The proton beam was provided by the Van de Graaff and cyclotron accelerators of ATOMKI. The cross section was determined with the activation method by measuring the yield of the emitted γ-radiation following the β-decay of the reaction products. Experimental details and preliminary results are presented.


PACS

25.40.Lw Radiative capture

97.10.Cv Stellar structure, interiors, evolution, nucleosynthesis, ages

26.30.-k Nucleosynthesis in novae, supernovae, and other explosive environments

95.30.Cq Elementary particle processes

27.50.+e 59(less-than-or-equal-to)A(less-than-or-equal-to)89

Subjects

Nuclear physics

Particle physics and field theory

Astrophysics and astroparticles

Dates

Issue 1 (January 2008)

Received 18 July 2007

Published 13 December 2007



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