An alternative method for the measurement of stellar nuclear-reaction rates

AUTOR(ES)

Fernández Niello, J. O., Arazi, A., Faestermann, T., Knie, K., Korschinek, G., Richter, E., Rugel, G., Wallner, A.

FONTE

Brazilian Journal of Physics

DATA DE PUBLICAÇÃO

2003-06

RESUMO

For charged-particle induced reactions occurring in astrophysical scenarios, projectile energies are usually well below the Coulomb barrier of the reacting system. Hence, extremely small cross section reactions pose a difficult task for laboratory measurements. Most commonly, these energy-dependent cross sections are studied by detecting the emitted prompt gamma rays following the de-excitation of the produced compound nucleus. In this work we propose an alternative way for the measurement of the extremely small cross sections of the 25Mg(p,gamma)26Al resonant reaction, namely the use of the Accelerator Mass Spectrometry (AMS) technique.

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