title: Alpha-particle production in the reaction 6Li+28Si at near-barrier energies.
abstract: The production of alpha particles in the 6Li+28Si reaction was studied at near-barrier energies. Angular distributions were performed at four bombarding energies, namely, 7.5, 9, 11, and 13 MeV. The distributions were characterized by a Gaussian shape, which was integrated in order to obtain alpha-particle cross sections. Our results were compared with previous data of 6Li scattering on various heavier targets and found to exhibit a universal behavior. Present continuum-discretized-coupled-channel calculations support the obtained data. The consequences of the systematic behavior of the alpha-particle production on the unusual behavior of the imaginary potential observed previously in elastic scattering of weakly bound systems is discussed.
authors.affiliation: Department of Physics, The University of Ioannina, 45110 Ioannina, Greece.
authors.forename: A
authors.initials: A
authors.lastname: Pakou
authors.forename: N
authors.initials: N
authors.lastname: Alamanos
authors.forename: A
authors.initials: A
authors.lastname: Gillibert
authors.forename: M
authors.initials: M
authors.lastname: Kokkoris
authors.forename: S
authors.initials: S
authors.lastname: Kossionides
authors.forename: A
authors.initials: A
authors.lastname: Lagoyannis
authors.forename: N G
authors.initials: NG
authors.lastname: Nicolis
authors.forename: C
authors.initials: C
authors.lastname: Papachristodoulou
authors.forename: D
authors.initials: D
authors.lastname: Patiris
authors.forename: D
authors.initials: D
authors.lastname: Pierroutsakou
authors.forename: E C
authors.initials: EC
authors.lastname: Pollacco
authors.forename: K
authors.initials: K
authors.lastname: Rusek