Effect of deformation on structure and reaction of Al isotopes using relativistic mean field densities in Glauber model

Abstract

We have examined the ground state properties of Al isotopes towards the proton rich side from A = 22 to 28 using the well known relativistic mean field (RMF) formalism with NLSH parameter set. The calculated results are compared with the predictions of finite range droplet model and experimental data. The calculation is extended to estimate the reaction cross section for $$^{22-28}$$ Al as projectiles with $$^{12}$$ C as target. The incident energy of the projectiles are taken as 950 MeV/nucleon, for both spherical and deformed RMF densities as inputs in the Glauber model approximation. Further investigation of enhanced values of total reaction cross section for $$^{23}$$ Al and $$^{24}$$ Al in comparison to rest of the isotopes indicates the proton skin structure of these isotopes. Specifically, the large value of root mean square radius and total reaction cross section of $$^{23}$$ Al could not be ruled out the formation of proton halo.