Scattering of (6)He at energies around the Coulomb barrier
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Abstract
We have measured elastic cross sections of the scattering of 6He at
ELab = 14, 16, 17, 18, 22 MeV on 208Pb in the angular ranges of 20± − 64± and
135± − 170±. A significant amount of 4He events is found at energies well below the
Coulomb barrier, that becomes dominant above it. Optical Model calculations have
been performed including a dynamic polarization potential. Very large imaginary diffuseness
parameter is needed in order to describe the experimental distributions
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Sánchez Benítez, A.M., Escrig, D., Álvarez, M.A.G., Andrés, M.V., Angulo, C., García Borge, M. J., García Ramos, J.E... [et al.] : "Scattering of (6)He at energies around the Coulomb barrier". Journal of Physics G: Nuclear and Particle Physics. Vol. 31, n. 10 Special Issue S1953-S1958 (2005). ISSN 0954-3899
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