Volume 94, Number 6, June 2011
|Number of page(s)||6|
|Published online||09 June 2011|
Non-monotonic potentials and vector analyzing powers of 6,7Li scattering by 12C, 26Mg, 58Ni, and 120Sn
Department of Physics, University of Rajshahi - Rajshahi, Bangladesh
2 Department of Physics, Rajshahi University of Engineering & Technology - Rajshahi, Bangladesh
3 Department of Physics, Shahjalal University of Science & Technology - Sylhet, Bangladesh
4 Department of Physics, Jagannath University - Dhaka, Bangladesh
5 School of Computer Science, Carleton University - Ottawa, ON K1S 5B6, Canada
6 Department of Physics, Southern Illinois University - Carbondale, IL 62901, USA
7 Department of Physics, Washington University - St. Louis, MO 63130, USA
Accepted: 27 April 2011
The data on the elastic scattering cross-section (CS) and vector analyzing power (VAP) of 6, 7Li incident on 12C , 26Mg, 58Ni and 120Sn nuclei are analyzed in terms of an optical model (OM) potential, the real part of which is generated from a realistic two-nucleon interaction using the energy-density functional (EDF) formalism. The EDF-generated real part of the potential is non-monotonic (NM) in nature. This NM real potential part, without any renormalization, along with an empirically determined imaginary part and spin-orbit potential, embodying the underlying physics of projectile excitation, can successfully account for both CS and VAP data in all four cases. This investigation, for the first time, using the simple OM analysis accounts well for the opposite signs of the VAP data of elastically scattered 6, 7Li by 58Ni at Elab≈20 MeV and by 120Sn at Elab=44 MeV. The ramification of successfully describing the data by the EDF-generated potential to the equation of state of nuclear matter is discussed.
PACS: 25.70.Bc – Elastic and quasielastic scattering / 24.10.Ht – Optical and diffraction models / 24.70.+s – Polarization phenomena in reactions
© EPLA, 2011
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