DOI: 10.1140/epja/i2002-10066-0
Investigation of
-nucleus interaction in the
scattering and
reaction
M.N.A. Abdullah1, M.S. Mahbub1, S.K. Das1, 2, A.S.B. Tariq1, M.A. Uddin1, A.K. Basak1, H.M. Sen Gupta3 and F.B. Malik4
1 Department of Physics, University of Rajshahi, Rajshahi, Bangladesh
2 Department of Physics, Shahjalal University of Science & Technology, Sylhet, Bangladesh
3 Department of Physics, University of Dhaka, Dhaka, Bangladesh
4 Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA
akbasak2001@Yahoo.com
(Received: 15 July 2002 / Published online: 10 December 2002)
Abstract
Full finite-range macroscopic calculations in the distorted-wave Born approximation have been performed using the molecular
and
Michel
-nucleus potentials to analyze the angular
distributions of cross-sections of the
27Al(
)
29Si
reaction, at 26.5 and 27.2 MeV incident energies, leading to seven
transitions up to the excitation energy
MeV of the final
nucleus. The parameters of the two types of the
-nucleus
potentials are determined from the elastic-scattering data. Both the
molecular and Michel potentials, without any adjustment to the
parameters needed to fit the elastic-scattering data, are able in most
cases to reproduce, simultaneously, the absolute cross-sections
particularly at large angles, where the previous calculations failed
to reproduce by orders of magnitude, and the gross pattern of angular
distributions of the reaction. The deuteron-cluster spectroscopic
factors for most of the seven transitions, deduced using the two
-
27Al potentials, differ from those obtained in earlier
works. The spectroscopic factor for the ground-state transition,
deduced in the present work for the 25.8 MeV data, agrees well with
the shell model prediction.
25.55.Ci - Elastic and inelastic scattering.
24.50.+g - Direct reactions.
21.10.Jx - Spectroscopic factors.
© Società Italiana di Fisica, Springer-Verlag 2002