Microscopic study of {sup 6}He elastic scattering around the Coulomb barrier

Journal Article · Thu Jul 07 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4955345· OSTI ID:22608493

Descouvemont, P. ^[1]

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1. Physique Nucléaire Théorique et Physique Mathématique, C.P. 229, Université Libre de Bruxelles (ULB), B 1050 Brussels (Belgium)

We investigate {sup 6}He scattering on {sup 27}Al, {sup 58}Ni, {sup 120}Sn, and {sup 208}Pb in a microscopic version of the Continuum Discretized Coupled Channel (CDCC) method. We essentially focus on energies around the Coulomb barrier. The {sup 6}He nucleus is described by an antisymmetric 6-nucleon wave function, defined in the Resonating Group Method. The {sup 6}He continuum is simulated by square-integrable positive-energy states. The model does not depend on any adjustable parameter as it is based only on well known nucleon-target potentials. We show that experimental elastic cross sections are fairly well reproduced. The calculation suggests that breakup effects increase for high target masses. For a light system such as {sup 6}He+{sup 27}Al, breakup effects are small, and a single-channel approximation provides fair results.

• OSTI ID: 22608493
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1753; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALUMINIUM 27 TARGET
APPROXIMATIONS
COULOMB FIELD
COUPLED CHANNEL THEORY
CROSS SECTIONS
ELASTIC SCATTERING
HELIUM 6
LEAD 208 TARGET
MASS
NICKEL 58 TARGET
NUCLEONS
RESONATING-GROUP METHOD
SIMULATION
TIN 120 TARGET
VISIBLE RADIATION
WAVE FUNCTIONS