Physics – Nuclear Physics
Scientific paper
Apr 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998nupha.633..373t&link_type=abstract
Nuclear Physics A, Volume 633, Issue 2, p. 373-387.
Physics
Nuclear Physics
Nuclear Reaction 208Pb(16Oα- 12C), Coulomb Dissociation, M2-Excitation, Particle-Particle Correlations
Scientific paper
Fragment angular correlations in projectile breakup reactions are very sensitive to interference between different multipolarities entering in the excitation-dissociation process of the projectile. In particular, it was proposed to disentangle L=1 and L=2 contributions in direct breakup reactions of 16O with low relative energy between the α and 12C fragment, which are of astrophysical interest. We studied the experimental aspects of extracting those angular correlations in extreme kinematical conditions usually encountered in breakup experiments of astrophysical interest. The breakup of 95 MeV/A 16O projectiles induced by a 208Pb target was measured using the high-resolution spectrometer SPEG at Ganil for the coincident detection of the fragments. Sequential breakup via the 12.53 MeV level of 16O is analyzed in this framework and it favors an one-step M2 excitation of this level.
Aguer P.
Bogaert Gilles
Coc Alain
de Oliveira Santos F.
Disdier D.
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