Probing transfer to unbound states of the ejectile with weakly bound 7Li on 93Nb

Abstract

The two-step process of transfer followed by breakup is explored by measuring a rather complete set of exclusive data for reaction channels populating states in the ejectile continua of the ${}^7$Li+${}^{93}$Nb system at energies close to the Coulomb barrier. The cross sections for $\alpha +\alpha$ events from one proton pickup were found to be smaller than those for $\alpha +d$ events from one neutron stripping and $\alpha +t$ events from direct breakup of ${}^7$Li. Coupled channels Born approximation and continuum discretized coupled channels calculations describe the data well and support the conclusion that the $\alpha +d$ and $\alpha +\alpha$ events are produced by direct transfer to unbound states of the ejectile.

arXiv commentPublished in Phys. Rev. C (Rapid Communication) 93, 061602(R) (2016)

References in corpus (4)

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• Evidence for transfer followed by breakup in 7Li + 65Cu
• Coupled-channels effects in elastic scattering and near-barrier fusion induced by weakly bound nuclei and exotic halo nuclei
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• Incomplete fusion analysis of ${}^7$Li-induced reaction on ${}^{93}$Nb within 3-6.5 MeV/nucleon
• Inclusive breakup calculations in angular momentum basis: application to ${}^7$Li+${}^{58}$Ni
• Investigation of neutron transfer in ${}^7$Li+${}^{124}$Sn reaction
• Interpretation of coincidence data from strip detectors and extraction of absolute cross section using 3-body Monte Carlo simulation method
• Large back-angle quasielastic scattering for ${}^7$Li+${}^{159}$Tb