Backscattering measurement ofHe6onBi209: Critical interaction distance

• DOI: 10.1103/physrevc.93.064607
• Publication Date: 2016-06-14T18:09:18Z
• Authors: V. Guimarães; J. J. Kolata; E. F. Aguilera; A. Howard; A. Roberts; F. D. Becchetti; R. O. Torres-Isea; A. Riggins; M. Febrarro; V. Scarduelli; P. N. de Faria; D. S. Monteiro; J. F. P. Huiza; A. Arazi; J. Hinnefeld; A. M. Moro; E. S. Rossi; V. Morcelle; A. Barioni
• Keywords: Sigma

An elastic backscattering experiment has been performed at energies below the Coulomb barrier to investigate static and dynamic effects in interaction of $^{6}\text{He}$ with $^{209}\text{Bi}$. The measured cross sections are presented terms $\mathrm{d}\ensuremath{\sigma}/\mathrm{d}{\ensuremath{\sigma}}_{Ruth}$ ratio, as a function distance closest approach on Rutherford trajectory. data compared three-body CDCC calculation good agreement is observed. In addition, critical was extracted. A larger value obtained for exotic nucleus weakly bound $^{6}\text{Li}$ $^{9}\text{Be}$ nuclei tightly $^{4}\text{He}, ^{12}\text{C}$, $^{16}\text{O}$ nuclei.