Long range absorption in the scattering of 6He on 208Pb and 197Au at 27 MeV

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Feb 2006Embargo end date: 01 Jan 2005 Spain English Publisher:Elsevier BVJournal:Nuclear Physics A, volume 765, pages 294-306 (issn: 0375-9474,

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Authors: Kakuee, O.R.; Alvarez, M.A.G.; Andrés, M.V.; Cherubini, S.; Davinson, T.; Di Pietro, A.; Galster, W.; +11 Authors

doi: 10.1016/j.nuclphysa.2005.11.012 , 10.48550/arxiv.nucl-ex/0507024

arXiv: nucl-ex/0507024

handle: 10261/7632 , 11441/72143

Long range absorption in the scattering of 6He on 208Pb and 197Au at 27 MeV

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Abstract

Quasi-elastic scattering of 6He at E_lab=27 MeV from 197Au has been measured in the angular range of 6-72 degrees in the laboratory system employing LEDA and LAMP detection systems. These data, along with previously analysed data of 6He + 208Pb at the same energy, are analyzed using Optical Model calculations. The role of Coulomb dipole polarizability has been investigated. Large imaginary diffuseness parameters are required to fit the data. This result is an evidence for long range absorption mechanisms in 6He induced reactions.

10 pages, 10 figures, minor corrections. To appear in Nucl. Phys. A

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Spain

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Keywords

Halo nucleus, 208Pb(6He,6He), Nuclear reaction 28Pb(6He, 6He), Physics, Nuclear reaction 197Au(6He, 6He), Plasma physics. Ionized gases, FOS: Physical sciences, 530, E=4.5 MeV/nucleon, Coulomb dipole polarizability, Optical model parameters, Optical potential, Nuclear reaction 197Au(6He,6He), Nuclear Experiment (nucl-ex), Nuclear Experiment

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