4 research outputs found
Role of neutron transfer in the reaction mechanism of Be+Tm, Ta, Re and Au systems
The contribution of one neutron stripping cross section to the total reaction
cross section has been studied for Be projectile incident on Tm,
Ta, Re and Au targets around Coulomb barrier energy.
The measured one neutron stripping cross sections for these systems have been
compared with the coupled channel calculations. The recently developed global
set of optical model potential parameters for Be projectile has been used
in the present calculations. The cumulative of measured complete fusion (CF),
incomplete fusion (ICF), one neutron stripping and calculated non-capture
breakup (NCBU) cross sections is found to explain almost the reaction cross
sections for all the targets. A very small contribution from target inelastic
states and elastic breakup may contribute to the remaining part. The percentage
fraction of cross section for CF, ICF, one neutron stripping, and NCBU over
reaction cross section show the dominance of neutron transfer and NCBU at below
barrier energies while CF and ICF processes have the major contribution at
above barrier energies.Comment: 12 pages, 3 figure
Investigation of complete and incomplete fusion in Li+Sn reaction around Coulomb barrier energies
The complete and incomplete fusion cross sections for Li+Sn
reaction were measured using online and offline characteristic -ray
detection techniques. The complete fusion (CF) cross sections at energies above
the Coulomb barrier were found to be suppressed by 26 \% compared to the
coupled channel calculations. This suppression observed in complete fusion
cross sections is found to be commensurate with the measured total incomplete
fusion (ICF) cross sections. There is a distinct feature observed in the ICF
cross sections, i.e., -capture is found to be dominant than
-capture at all the measured energies. A simultaneous explanation of
complete, incomplete and total fusion (TF) data was also obtained from the
calculations based on Continuum Discretized Coupled Channel method with short
range imaginary potentials. The cross section ratios of CF/TF and ICF/TF
obtained from the data as well as the calculations showed the dominance of ICF
at below barrier energies and CF at above barrier energies.Comment: 9 pages, 8 figure