Study of the rainbow-like pattern in the elastic scattering of super(16)O on super(27)Al at E sub(lab.) = 100 MeV

Recently, a rainbow pattern in the elastic scattering of super(16O) + 27Al at E sub(lab.) = 100 MeV was reported. In the present paper, we show that the predicted change of slope of the cross section, as a function of angle, is mostly due to the far-side component of the scattering, which is affecte...

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Bibliographic Details
Published inJournal of physics. G, Nuclear and particle physics Vol. 40; no. 10; pp. 1 - 12
Main Authors Oliveira, J R B, Cappuzzello, F, Chamon, L C, Pereira, D, Agodi, C, Bondi, M, Carbone, D, Cavallaro, M, Cunsolo, A, De Napoli, M
Format Journal Article
LanguageEnglish
Published 01.10.2013
Subjects
Coulomb friction
Couplings
Elastic scattering
Inelastic scattering
Inflection points
Mathematical analysis
Rainbows
Slopes
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Summary:Recently, a rainbow pattern in the elastic scattering of super(16O) + 27Al at E sub(lab.) = 100 MeV was reported. In the present paper, we show that the predicted change of slope of the cross section, as a function of angle, is mostly due to the far-side component of the scattering, which is affected by the inelastic couplings. The experimental data is consistent with the calculations up to the inflection point, where the effect of the couplings is significant. New experimental data, in very good agreement with the theoretical expectations around the Coulomb rainbow angle, are also presented.
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ISSN:0954-3899
1361-6471
DOI:10.1088/0954-3899/40/10/105101