Nuclear reactions of 118Sn, 121Sb, and 127I with argon ions

Abstract

Excitation functions have been measured for a number of (40Ar, xn), (40Ar, pxn), (40Ar, 2pxn), and (40Ar, 3pxn) reactions induced in 118Sn, 121Sb and 127I over the lab. energy interval 150-280 MeV. Values of the total fusion cross section are obtained and Jcrit is deduced. The value of Jcrit increases with energy and becomes as large as 110-140h{stroke}, in reasonable agreement with the yrast limit deduced from the ellipsoidal liquid drop model. The competition between proton and neutron emission from the compound nucleus is examined and Γp Γn is found to increase rapidly with the number of emitted nucleons, thereby imposing severe limits on the production of very neutron deficient miclides via compound nuclear reactions. The effect of very high angular momentum on the excitation functions is examined. © 1974.