Göttingen 1997 – wissenschaftliches Programm

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HK: Hadronen und Kerne

HK 4: Kernspektroskopie, Halokerne

HK 4.4: Vortrag

Montag, 24. März 1997, 15:15–15:30, HS E

Coupled Reaction Channel study of reactions with weakly-
bound exotic neutron-rich nuclei — •Ivan Krouglov¹ and W. von Oertzen² — ¹Freie Universitaet Berlin — ²Hahn Meitner Institut Berlin

We have studied coupled reaction channel effects(CRC) in inelastic and transfer reactions (1- and 2-neutrons) induced by ¹¹Be and ¹¹Li on light mass target nuclei(¹²C,¹⁶O) in the vicinity of the Coulomb barrier.The CRC program FRESCO has been used.Various features of the strong coupling situation(nonorthogonality effects,convergence, etc)are illustrated.It is found that the absorption cross section is generally reduced at energies below the barrier due to coupling of the positive Q-values of the transfer channels.The origin of this behaviour is discussed.