Masses forAr43and the new isotopesAr45andAr46

The reactions ($\alpha , {}_{}{}^9{}_{}{}^{}\mathrm{Be}$), ($\alpha , {}_{}{}^7{}_{}{}^{}\mathrm{Be}$), and (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^8{}_{}{}^{}\mathrm{B}$) on ${}_{}{}^{48}{}_{}{}^{}\mathrm{Ca}$ at $E\left(\alpha \right)=78\mathrm{}$ MeV and $E\left({}_{}{}^6{}_{}{}^{}\mathrm{Li}\right)=80\mathrm{}$ MeV were used to determine the mass excesses of ${}_{}{}^{43}{}_{}{}^{}\mathrm{Ar}$ (-31.98 ± 0.07 MeV), ${}_{}{}^{45}{}_{}{}^{}\mathrm{Ar}$(-29.727 ± 0.06 MeV), and ${}_{}{}^{46}{}_{}{}^{}\mathrm{Ar}$ (-29.732 ± 0.07 MeV) by counter telescope techniques. Excited states in ${}_{}{}^{43}{}_{}{}^{}\mathrm{Ar}$ at 1.74 ± 0.05, 2.55 ± 0.05, 3.56 ± 0.07, and 4.74 ± 0.10 MeV and in ${}_{}{}^{45}{}_{}{}^{}\mathrm{Ar}$ at 1.66 ± 0.05, 2.42 ± 0.05, and 3.25 ± 0.07 MeV were also observed. Comparisons are made with mass predictions calculated from simple mass relations based on the shell model and with those obtained from the Garvey and Kelson approach.