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The elastic scattering of p-~(14)Be system at E_(1ab)=200 MeV is evaluated within the relativistic impulse approximation. We discuss the effects of the halo neutrons on the three observables of the elastic scattering system, such as differential cross section dσ/dΩ, analyzing power A_y and spin rotation Q. The results of the three observables of the elastic scattering of p-~(14)Be system are compared with those of p-~(12)C and p-~(16)O systems at the same energy as E_(1ab)=200 MeV. We have found that in the small angular region the A_y and Q, as welt as dσ/dΩ, are quite sensitive to the nucleon density distributions on the surface of the target nucleus and offer some unique behaviors of halo nuclei.
The elastic scattering of p- ~ (14) Be system at E_ (1ab) = 200 MeV is evaluated within the relativistic impulse approximation. We discuss the effects of the halo neutrons on the three observables of the elastic scattering system, such as differential cross section dσ / dΩ, analyzing power A_y and spin rotation Q. The results of the three observables of the elastic scattering of p- ~ (14) Be system are compared with those of p- ~ (12) C and p ~ ~ (16) ) O systems at the same energy as E_ (1ab) = 200 MeV. We have found that in the small angular region of the A_y and Q, as welt as dσ / dΩ, are quite sensitive to the nucleon density distributions on the surface of the target nucleus and offer some unique behaviors of halo nuclei.