Abstract
Influence of 1n-transfer coupling on quasi-elastic scattering excitation function has been investigated for 6 Li + 209 Bi system. Coupled Reaction Channels Calculations have been carried out for the energies around the Coulomb barrier. Corresponding barrier distributions obtained with and without including 1n-transfer cou- pling, have been compared with experimental data. 1n-transfer effect on quasi-elastic excitation function has been observed to be insignificant for the present system. In the reaction of 6 Li with 208 Pb and 209 Bi, an ex- perimental relative contributions for breakup and 1n-transfer channels have been reproduced by simultaneous calculation using CDCC and CRC formalism.
Highlights
A great attention has been given to the breakup channel in the nuclear reaction studies with weakly bound nuclei [1, 2]
For example the weakly bound projectile 6Li may directly breakup into two fragments (d + α) or the breakup may occur after some nucleon transfer
In addition to that we have done simultaneous calculation for breakup and transfer using CDCC and and Coupled Reaction Channels (CRC) formalism, to understand their relative contributions which have been reported in the Ref.[3]
Summary
A great attention has been given to the breakup channel in the nuclear reaction studies with weakly bound nuclei [1, 2]. The observed enhancement and/or suppression in the fusion cross sections at around the Coulomb barrier are associated with the breakup and other reaction channels such as transfer (pickup/ stripping), which trigger the projectile breakup [3]. In a very recent experimental study involving stable weakly bound projectile (6Li) [3] the 1n-stripping is found more preferable channel leading to (p + α) and the contribution from 1n,1p-pick up is found negligible at below barrier energy in the reaction with 207,208Pb and 209Bi targets. It will be of interest to know the 1n-transfer coupling effect on quasi-elastic scattering excitation function for the 6Li + 209Bi system. In the present work, Coupled Reaction Channels(CRC) Calculation have been carried out to study the 1n-transfer effect on quasi-elastic scattering excitation function. In addition to that we have done simultaneous calculation for breakup and transfer using CDCC and and CRC formalism, to understand their relative contributions which have been reported in the Ref.[3]
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