Measurement of excitation functions in 14N- ion induced reactions

Abstract

Excitation functions of nine evaporation residues populated through complete and/or incomplete fusion in ¹⁴N + ¹²⁴Sn system in the projectile energy range ≈4−7 MeV/nucleon have been measured. Recoil catcher activation technique using offline γ -ray spectrometry has been employed in these measurements. The evaporation residues produced through xn and pxn channels are found to be well reproduced by the theoretical predictions of PACE-4. In case of evaporation residues produced through α-emitting channels, significant enhancement in the measured excitation functions over their theoretical predictions has been observed. This enhancement indicates that these α-emitting channels are attributed to the incomplete fusion process. The comparison of present study with literature data also shows that the ICF probability depends on various entrance channel parameters. A new combined parameter <img src='http://www.niscair.res.in/jinfo/pap_aug_2019.gif' border=0> has been found to explain more precisely the ICF dynamics than other entrance channel parameters.