  The contribution of one neutron stripping cross section to the total reaction
cross section has been studied for $^9$Be projectile incident on $^{169}$Tm,
$^{181}$Ta, $^{187}$Re and $^{197}$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 $^9$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.
