Identifying the T=5 states in $^{48}$Ca

Particle-hole excitations near closed shells carry information on single-particle energies and on two-body interactions. The particle-hole excitations near the doubly magic nuclei are of special interest. Information on the charge-changing particle-hole excitations (T=5 negative parity states) in $^{48}$Ca is not available. We performed an experiment to establish the level scheme of the low-lying negative parity T=5 states in $^{48}$Ca. Excitation functions for the $^{1}$H($^{47}$K,p)$^{47}$K(g.s.) and $^{1}$H($^{47}$K,p)$^{47}$K(3/2$^+$) reactions in the c.m. energy range from 1 MeV to 4.5 MeV were measured. The T=5 states are expected to show up in the p+$^{47}$K excitation function as narrow resonances. This experiment was performed at NSCL using the ReA3 beam of $^{47}$K at energy of 4.6 MeV/u. ANASEN, set in active target mode, was used for this experiment. Experimental results from this experiment will be presented.