Elastic proton scattering at intermediate energies as a probe of the ${}^{6,8}$He nuclear matter densities

Abstract

The Glauber model analysis of the elastic ${}^{6,8}$He+$p$ scattering data at energies around 700 MeV/nucleon, measured in two separate experiments at GSI-Darmstadt, has been done using several phenomenological parametrizations of the nuclear matter density. By taking into account the new data points measured at the high momentum transfer, the nuclear matter radii of ${}^{6,8}$He were accurately determined from the Glauber model analysis of the data, with the spin-orbital interaction explicitly taken into account. The well-known geometry for the core and dineutron halo has been used with the new parametrizations of the ${}^6$He density to extract the detailed information on the structure of ${}^6$He in terms of the core and dineutron halo radii. An enhanced sensitivity of the data measured at the high momentum transfer to the core part of the ${}^{6,8}$He densities has been found.

Accepted for publication in Physical Review C

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