Reaction Dynamics for the Systems 7Be, 8B + 208Pb at Coulomb Barrier Energies

M Mazzocco ,E Stiliaris ,J A Lay ,Á M Sánchez-Benítez ,F Soramel ,N Iwasa ,O Sgouros ,K Rusek ,M Nicoletto ,Sohee Jeong ,S Kimura ,C J Lin ,J Grębosz ,C Parascandolo ,M Mukai ,T Glodariu ,J P Fernández‐García ,C Boiano ,Y Hirayama ,A Boiano ,Y H Kim ,P Di Meo ,C Manea ,L Acosta ,N Keeley ,C Signorini ,D Kahl ,E Strano ,S Kubono ,A Guglielmetti ,H M Jia ,H Miyatake ,Takashi Teranishi ,A Pakou ,T Nakao ,V Soukeras ,N Imai ,D Pierroutsakou ,T Sava ,N Toniolo ,L Stroe ,Yukihiro Sakaguchi ,I Martel ,H Ishiyama ,L Yang ,G Marquínez-Durán ,M La Commara ,D Torresi ,Hiroyuki Yamaguchi ,Yutaka Watanabe ,Y Wakabayashi ,Y Yang

doi:10.1088/1742-6596/1078/1/012013

Abstract

In this contribution we describe the first results obtained for the investigation of the elastic scattering process in the reactions induced by the Radioactive Ion Beams 7Be and 8B on a 208Pb target at Coulomb barrier energies. The experimental data were analyzed within the framework of the optical model in order to extract the total reaction cross section. The comparison with data available in literature for reactions induced on 208Pb by light ions in the mass range A = 6-8 shows that the loosely-bound 8B has the largest reactivity.

Highlights

The study of the reaction dynamics induced by light weakly-bound projectiles in the energy range around the Coulomb barrier has attracted the interest of the Nuclear Physics community since the early Nineties and the investigation was later boosted by growing availability of Radioactive Ion Beams (RIBs)
Even in reactions induced by stable projectiles, a relevant enhancement of the fusion probability was observed at energies below the Coulomb barrier [8]
Experiments The 7Be RIB for this experiment was produced by using the EXOTIC facility [25, 26, 27] located at the Laboratori Nazionali di Legnaro (LNL) of the Istituto Nazionale di Fisica (INFN) in Legnaro, close to Padova (Italy)

Summary

Introduction

1. Introduction The study of the reaction dynamics induced by light weakly-bound projectiles in the energy range around the Coulomb barrier has attracted the interest of the Nuclear Physics community since the early Nineties and the investigation was later boosted by growing availability of Radioactive Ion Beams (RIBs). From a theoretical point of view, if the breakup process is considered to be an additional open channel, we should quantum mechanically measure an enhancement of the sub-barrier fusion cross section.

Results

Conclusion