Tunnelling of α particles through the Coulomb barrier is considered. The main attention is given to the effect of sharp peaks arising in the case of coincidence of the α energy with that of a quasistaionary state within the barrier. The question of the α-nucleus potential is discussed in this light. The method is applied to the α decay of a compound nucleus of 135Pr. The appearance of the peaks in the spectrum of emitted particles is predicted. They can give rise to ‘anomalous’ properties of some neutron resonances. The peaks can also be observed in the incoming α-nucleus channel. Observation of the peaks would give unique information about the α-nucleus potential.
Resonances in alpha-nuclei interaction / F. F., Karpeshin; LA RANA, Giovanni; Vardaci, Emanuele; Brondi, Augusto; Moro, RENATA EMILIA MARIA; S. N., Abramovich; V. I., Serov. - In: JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS. - ISSN 0954-3899. - STAMPA. - 34:(2007), pp. 587-595. [10.1088/0954-3899/34/3/016]
Resonances in alpha-nuclei interaction
LA RANA, GIOVANNI;VARDACI, EMANUELE;BRONDI, AUGUSTO;MORO, RENATA EMILIA MARIA;
2007
Abstract
Tunnelling of α particles through the Coulomb barrier is considered. The main attention is given to the effect of sharp peaks arising in the case of coincidence of the α energy with that of a quasistaionary state within the barrier. The question of the α-nucleus potential is discussed in this light. The method is applied to the α decay of a compound nucleus of 135Pr. The appearance of the peaks in the spectrum of emitted particles is predicted. They can give rise to ‘anomalous’ properties of some neutron resonances. The peaks can also be observed in the incoming α-nucleus channel. Observation of the peaks would give unique information about the α-nucleus potential.File | Dimensione | Formato | |
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