par Goldstein, Gérald 
;Baye, Daniel Jean ;Capel, Pierre
Référence Physical Review C (Nuclear Physics), 73, 2, 024602
Publication Publié, 2006
;Baye, Daniel Jean ;Capel, Pierre Référence Physical Review C (Nuclear Physics), 73, 2, 024602
Publication Publié, 2006
Article révisé par les pairs
| Résumé : | The dynamical eikonal approximation is a quantal method unifying the semiclassical time-dependent and eikonal methods by taking into account interference effects. The principle of the calculation is described and expressions for different types of cross sections are established for two variants of the method, differing by a phase choice. The "coherent" variant respects rotational symmetry around the beam axis and is therefore prefered. A good agreement is obtained with experimental differential and integrated cross sections for the elastic breakup of the Be11 halo nucleus on C12 and Pb208 near 70 MeV/nucleon, without any parameter adjustment. The dynamical approximation is compared with the traditional eikonal method. Differences are analyzed and the respective merits of both methods are discussed. © 2006 The American Physical Society. |
