Proton orbit sizes of the isotopes of tin

Root-mean square radii of the 1gsub(9/2), 2psub(1/2) and 2psub(3/2) proton orbits in the isotopes of tin with A = 112, 116, 118, 120 and 124 have been determined from a DWBA analysis of cross-section data from the sub-Coulomb (t, α) reaction. The differential cross sections for the (t, α) reaction were measured at lab angles in the range from 600 to 1600 for triton energies in the range from 4.75 MeV to 5.25 MeV. Spectroscopic factors of the populated states were obtained from a sum rule analysis of published proton stripping and pickup reactions on the isotopes of tin. The measured orbit sizes are compared with the results of Hartree-Fock calculations and the systematic features of the asymptotic proton wave functions are discussed. (orig.)