Comprehensive study of reaction mechanisms for theBe9+Sm144system at near- and sub-barrier energies

Abstract

The delayed x-ray detection technique was used to measure complete and incomplete fusion cross sections for the 9 Be + 144 Sm reaction at sub-and near-barrier energies. Elastic and inelastic scattering for this system were also measured. Reaction cross sections were derived and the transfer cross sections of one neutron were calculated. The suppression of complete fusion above the barrier, of the order of 10%, is attributed to 9 Be breakup and is considerably smaller than the value of 30% found for the 9 Be + 208 Pb system.

Observation of large incomplete fusion in 16O + 103Rh system at

“…As already mentioned, the enhancement in the experimentally measured production cross-sections over theoretical model predictions based on CF calculations may be attributed to the contribution from ICF. As such, the ICF contribution for individual channels has been deduced by subtracting CF cross-sections (σ CF ) (predicted by theoretical model code) from the experimentally measured cross-sections (σ EXP ) at respective projectile energies, as suggested by Gomes et al [3]. The ICF contributions (σ ICF ) deduced as mentioned in Ref.…”

“…In recent years, the study of reaction dynamics in heavy ion (HI) interactions has acquired central place in nuclear physics research [1][2][3][4][5][6][7]. The HI-induced reactions are widely different from light ion induced reactions due to large fusion barrier (B fus ) and availability of different -bins.…”

Suppression of complete fusion due to breakup in the reactionsB10,11+Bi209

“…Studies with weakly bound light stable nuclei indicate that complete fusion (CF) cross sections (defined experimentally [2,3] as absorption of all the charge of projectile) are suppressed at above-barrier energies in comparison with the predictions of both the single barrier penetration model (SBPM) and the coupled-channels (CC) model [2,3,4,5,6,7]. This is attributed to the low binding energy of the projectiles, which can break up prior to reaching the fusion barrier.…”

“…Each detector, with an active area of 28. 4 209 Bi reaction, including production both by CF and ICF. The nucleus captured is shown above the shaded square corresponding to the compound nucleus (CN) on the right.…”

Exploring the breakup and transfer coupling effects in9Be elastic scattering

“…The cluster folding (core-target and valence-target) potentials required in CDCC calculations for constructing 9 Be + target interaction potential are taken from Refs. [21,[24][25][26][27][28][29] as given in Table I. In the final calculations, the depth of real part of optical potential for n+ 144 Sm is normalised by a factor 0.8 at 9 Be incident energies 37 MeV and below, which is needed to explain the data satisfactorily.…”