ab initio Calculation of Electric Field Gradient at Site of P Impurity in α-Al₃O₂

摘要

正The halo structure of proton-rich unstable nucleus 28P(Iπ=3+, T1/2=270.3 ms) with one 2s1/2 proton outside of the closed shell 27Si core has been investigated experimentally and theoretically. It is very difficult to determine the proton halo or proton skin structure in 28P by nuclear reaction cross section measurements. An effective way to study the halo structure in 28P is the measurement of the quadrupole