|
|||||
|
|
Elastic scattering for the system 11Be + 209Bi at Coulomb barrier energies |
|
| Authors: | M Mazzocco C Signorini M Romoli R Bonetti A De Francesco A De Rosa M Di Pietro L Fortunato T Glodariu A Guglielmetti G Inglima T Ishikawa H Ishiyama R Kanungo N Khai S Jeong M La Commara B Martin H Miyatake T Motobayashi T Nomura D Pierroutsakou M Sandoli F Soramel L Stroe I Sugai M H Tanaka E Vardaci Y Watanabe A Yoshida K Yoshida |
| Institution: | (1) Gesellschaft für Schwerionenforschung (GSI), Planckstrasse 1, 64291 Darmstadt, Germany;(2) Dipartimento di Fisica and INFN, via Marzolo 8, 35131 Padova, Italy;(3) Dipartimento di Scienze Fisiche and INFN, Complesso Universitario di Monte S. Angelo, via Cinthia, 80126 Napoli, Italy;(4) Istituto di Fisica Generale Applicata and INFN, via Celoria 16, 20133 Milano, Italy;(5) INFN Laboratori Nazionali di Legnaro, viale dell'Università 2, 35020 Legnaro (Pd), Italy;(6) National Institute for Physics and Nuclear Engineering – “Horia Hulubei”, 407 Atomistilor st., 077125 Magurele, Romania;(7) Institute of Particle and Nuclear Studies (KEK), 205-0801, Tsukuba-shi, Japan;(8) The Institute of Physical and Chemical Research (RIKEN), 351-0198, Wako-shi, Japan;(9) TRIUMF, 4004 Wesbrook Mall, Vancouver, Canada;(10) Dipartimento di Fisica and INFN, via delle Scienze 208, 33100 Udine, Italy |
| Abstract: | The elastic scattering process for 11Be ions impinging on a 209Bi target was studied in the energy range around the Coulomb barrier. The angular distributions of the 11Be scattered particles were analyzed within the optical model framework in order to evaluate the reaction cross section, which turned out to be much larger than the fusion one, especially in the sub-barrier region. The comparison with the system 9Be + 209Bi showed that the reaction cross section is larger for the reaction 11Be + 209Bi in the energy range around the Coulomb barrier, while they are rather similar at higher bombarding energies. This result suggests that direct processes related to the 11Be halo structure and lower binding energy are more relevant at near-barrier energies. |
| Keywords: | 25 60 Bx Elastic scattering 25 60 Dz Interaction and reaction cross section |
| 本文献已被 SpringerLink 等数据库收录！ | |