Relativistic calculations of the lifetimes and hyperfine structure constants in ${}^{67}$Zn${}^{+}$

This work presents accurate {\it ab initio} determination of the magnetic dipole (M1) and electric quadrupole (E2) hyperfine structure constants for the ground and a few low-lying excited states in ${}^{67}$Zn${}^{+}$, which is one of the interesting systems in fundamental physics. The coupled-cluster (CC) theory within the relativistic framework has been used here in this calculations. Long standing demands for a relativistic and highly correlated calculations like CC can be able to resolve the disagreements among the lifetime estimations reported previously for a few low-lying states of Zn${}^{+}$. The role of different electron correlation effects in the determination of these quantities are discussed and their contributions are presented.