Production of doubly magic nucleus 100Sn in fusion reactions via particle and cluster emission channels

by Dr Shuhrat Kalandarov (JINR, Russia & Tokyo Institute of Technology)

Friday 5 Jul 2013, 11:00 → 12:00 Asia/Tokyo

Room 203 (RIBF Build.)

The first mass measurement of doubly magic nucleus 100Sn were done in　GANIL (France), which was produced in fusion reaction of 50Cr+58Ni at　255 MeV via alpha,4n evaporation channel. Recently (at 2008) alternative　way of production of 100Sn in fusion reactions were suggested by A. Korgul et al. (ORNL) by studying the reaction 54Fe (58Ni,4n)108Xe, which　allows to study the 108Xe-104Te-100Sn alpha decay chain. Inspired from　those experimental interests on production of doubly magic nucleus 100Sn　and increasing possibility of using the radioactive ion beams as a　projectiles, we investigate the production mechanism of 100Sn in fusion reaction via particle (n,p,alpha) and cluster (12C,16O) emission　channels in the framework of di-nuclear system (DNS) model. Our theoretical results show that the probability of cluster emission　channels drastically increase with the decrease of N/Z of compound　system. It means that the element 100Sn can be obtained with very large　cross sections in fusion reactions with proton rich radioactive beams　via 12C emission channel. The calculated results of excitation functions　for the production of 100Sn via particle and cluster emission channels will be presented for the reactions 46Ti(58Ni,4n)100Sn,　56,58Ni(50Cr,alpha,xn)100Sn, 76,74,72Kr(40Ca,12C,xn, or 3alpha,xn) 100Sn　and 56Ni(58Ni,12C2n)100Sn. Also, the excitation functions for the　production of 108Xe,104Te (which leads to 100Sn via alpha decay chain)　elements will be presented. Other TNP Seminars