Investigation of proton resonant states in $^{23}$Al and $^{22}$Mg using radioactive beams at CNS

We have studied the proton resonances in $^{23}$Al and $^{22}$Mg via the resonant scattering of radioactive beams on a thick CH$_{2}$ target. The $^{22}$Mg and $^{21}$Na beams were separated by the {\textbf C}NS {\textbf R}adioactive {\textbf I}on {\textbf B}eam separator (CRIB) with energies of 4.4 AMeV and 4.0 AMeV, respectively. At scattering angles of $\theta _{lab}$= 4\r{ }, 17\r{ } and 23\r{ }, the recoiled particles were measured by three sets of $\Delta $E-E Si telescopes. As for nucleus $^{23}$Al (via $^{22}$Mg+p), several new resonant states were observed. As for nucleus $^{22}$Mg (via $^{21}$Na+p), the previously observed resonant states were confirmed. The states above the alpha threshold were observed, which are related to the $^{18}$Ne($\alpha $, p)$^{21}$Na reaction. The resonant parameters were deduced from an R-matrix code. The nuclear structures and the astrophysical implications are discussed.