Eur. Phys. J. A (2000) 8: 205-216
https://doi.org/10.1007/s10050-000-4509-7

Effect of the entrance channel on the synthesis of superheavy elements

¹ Istituto Nazionale di Fisica Nucleare, Sezione di Catania, and Dipartimento di Fisica dell’Università di Messina, 98166, Messina, Italy
² Gesellschaft für Schwerionenforschung, Darmstadt, Germany
³ Heavy Ion Physics Department, Institute of Nuclear Physics, Tashkent, Uzbekistan
⁴ Bogoliubov Laboratory of the Theoretical Physics, JINR, 141980, Dubna, Russia

^* e-mail: nasirov@thsun1.jinr.ru

Received: 15 December 1999
Published online: 11 September 2013

Abstract

Cross-sections for the synthesis of superheavy elements were analyzed using the concept of a dinuclear system. Experimental values for the production of elements Z = 104, 108, 110, 111 and 112 by cold fusion reactions with targets of ²⁰⁸Pb and ²⁰⁹Bi were reproduced. The model reveals the importance of entrance channel dynamics and competition between quasi-fission and complete fusion processes. Energy windows were observed which allow capture of the reacting nuclei and formation of the compound nucleus. The quantities were studied which are significant for the interaction dynamics of massive nuclei in the entrance channel.