Parallel momentum distribution of the ${}^{28}$Si fragments from ${}^{29}$P

Abstract

Distribution of the parallel momentum of ${}^{28}$Si fragments from the breakup of 30.7 MeV/nucleon ${}^{29}$P has been measured on C targets. The distribution has the FWHM with the value of 110.5 $\pm$ 23.5 MeV/c which is consistent quantitatively with Galuber model calculation assuming by a valence proton in ${}^{29}$P. The density distribution is also predicted by Skyrme-Hartree-Fock calculation. Results show that there might exist the proton-skin structure in ${}^{29}$P.

Comments: 4 pages, 4 figures