Elastic scattering of7Li+28Si at near-barrier energies

Pakou, A; Alamanos, N; Doukelis, G; Gillibert, A; Kalyva, G; Kokkoris, M; Kossionides, S; Lagoyannis, A; Musumarra, A; Papachristodoulou, C; Patronis, N; Perdikakis, G; Pierroutsakou, D; Pollacco, EC; Rusek, K

dc.contributor.author	Pakou, A	en
dc.contributor.author	Alamanos, N	en
dc.contributor.author	Doukelis, G	en
dc.contributor.author	Gillibert, A	en
dc.contributor.author	Kalyva, G	en
dc.contributor.author	Kokkoris, M	en
dc.contributor.author	Kossionides, S	en
dc.contributor.author	Lagoyannis, A	en
dc.contributor.author	Musumarra, A	en
dc.contributor.author	Papachristodoulou, C	en
dc.contributor.author	Patronis, N	en
dc.contributor.author	Perdikakis, G	en
dc.contributor.author	Pierroutsakou, D	en
dc.contributor.author	Pollacco, EC	en
dc.contributor.author	Rusek, K	en
dc.date.accessioned	2014-03-01T01:20:19Z
dc.date.available	2014-03-01T01:20:19Z
dc.date.issued	2004	en
dc.identifier.issn	0556-2813	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15892
dc.subject	Elastic Scattering	en
dc.subject.classification	Physics, Nuclear	en
dc.subject.other	HEAVY-ION SCATTERING	en
dc.subject.other	POLARIZATION POTENTIALS	en
dc.subject.other	COULOMB BARRIER	en
dc.subject.other	MODEL ANALYSIS	en
dc.subject.other	NUCLEI	en
dc.subject.other	LI-7	en
dc.subject.other	LI-6,LI-7+PB-208	en
dc.subject.other	LI-6+SI-28	en
dc.title	Elastic scattering of7Li+28Si at near-barrier energies	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevC.69.054602	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevC.69.054602	en
heal.identifier.secondary	054602	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The Li-7 +Si-28 elastic scattering was studied at near-barrier energies., namely, 8, 8.5, 9, 10, 11, 13, 15, and 16 MeV, with the aim to map the real and imaginary part of the optical potential and therefore probe the threshold anomaly. Angular distributions were measured over a wide angular range of (theta(lab)=25degrees to 150degrees) for the lower energies and of (theta(lab) = 10degrees to 100degrees) for the higher energies. The present data, together with previous ones on heavier targets (Ba-138 and Pb-208) at near barrier energies, were analyzed by using optical potentials obtained in a double-folding framework. The results were compared with previous measurements of Li-6 on the same targets. It was found that a striking difference occurs between the imaginary potentials of Li-6 and Li-7, which, respectively, present an increasing and decreasing behavior approaching the barrier from higher to lower energies. On the other hand, this energy variation is not fully reflected to the real part of the potential, as it is described by dispersion relations. The strength of the real potential remains almost constant with a weak declining and uprising trend for the Li-6 and Li-7, respectively. For a better understanding of our results, continuum-discretized-coupled-channel calculations were also performed and are discussed.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	Physical Review C - Nuclear Physics	en
dc.identifier.doi	10.1103/PhysRevC.69.054602	en
dc.identifier.isi	ISI:000222443600035	en
dc.identifier.volume	69	en
dc.identifier.issue	5	en
dc.identifier.spage	054602	en
dc.identifier.epage	1	en