Time scales in nuclear structure and nuclear reactions of exotic nuclei

Gómez-Camacho, J. and Gómez-Ramos, M. and Casal, J. and Moro, A. M. (2019) Time scales in nuclear structure and nuclear reactions of exotic nuclei. Il nuovo cimento C, 42 (2-3). pp. 1-6. ISSN 1826-9885

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Two relevant time scales are introduced to describe the interplay of nuclear structure and nuclear reactions for exotic nuclei. The collision time represents the time dependence of the external field created by the target on the projectile. The excitation time represents the characteristic time dependence of the projectile degrees of freedom due to its internal Hamiltonian. The comparison of these two time scales indicate when approximate treatments of the reaction, such as the sudden approximation, implicit in the eikonal treatment, is applicable. An approach based on these time scales is used to describe recent experimental data as well as theoretical calculation involving Coulomb break-up, stripping reactions and (p, pN) reactions. It is suggested that the dependence of the stripping cross sections on the difference of binding energies of protons and neutrons may be associated to inadequacy of the eikonal approximation to describe the removal of strongly bound nucleons at intermediate energies.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 01 Dec 2020 08:26
Last Modified: 01 Dec 2020 08:26
URI: http://eprints.bice.rm.cnr.it/id/eprint/20487

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