Study of the surrogate-reaction method applied to neutron-induced capture cross sections
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en
Article de revue
Este ítem está publicado en
Physics Letters B. 2012, vol. 712, p. 319-325
Elsevier
Resumen en inglés
174Yb(3He,αγ )173Yb* and 174Yb(3He,pγ )176Lu*, respectively. For the first time, the gamma-decay probabilities have been obtained with two independent experimental methods based on the use of C6D6 scintillators and Germanium ...Leer más >
174Yb(3He,αγ )173Yb* and 174Yb(3He,pγ )176Lu*, respectively. For the first time, the gamma-decay probabilities have been obtained with two independent experimental methods based on the use of C6D6 scintillators and Germanium detectors. Our results for the radiative-capture cross sections are several times higher than the corresponding neutron-induced data. To explain these differences, we have used our gamma-decay probabilities to extract rather direct information on the spin distributions populated in the transfer reactions used. They are about two times wider and the mean values are 3 to 4 ¯h higher than the ones populated in the neutron-induced reactions. As a consequence, in the transfer reactions neutron emission to the ground and first excited states of the residual nucleus is strongly suppressed and gamma-decay is considerably enhanced.< Leer menos
Palabras clave en inglés
Surrogate-reaction method
Angular-momentum distribution
Neutron-induced capture cross section
Gamma-decay probability
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