-\beta _{t}\hat{\mu}^{2}\frac{Z^{2}}{3}  \nonumber \\
m_{22}^{2} &=&\overline{g}^{2}h_{2}^{2}-\hat{B}\hat{\mu}\left( \frac{h_{1}}{%
h_{2}}\right) +4\beta _{t}m_{t}^{2}L+\beta _{t}A_{t}\left( 2m_{t}Z%
-A_{t}\frac{Z^{2}}{3}\right)  \nonumber \\
m_{SS}^{2} &=&\left( A_{\kappa }+4\nu \right) \nu -\left( \hat{B}-\nu
\right) \hat{\mu}\frac{h_{1}h_{2}}{s_{2}}-\frac{\hat{\mu}^{2}}{3}\left( 
\frac{h_{1}^{2}}{s_{2}}\right) \beta _{t}Z^{2}  \nonumber \\
m_{1S}^{2} &=&2\hat{\mu}^{2}\left( \frac{h_{1}}{s}\right) +\left( \hat{B}%
+\nu \right) \hat{\mu}\left( \frac{h_{2}}{s}\right) +\beta _{t}\hat{\mu}%
^{2}\left( \frac{h_{1}}{s}\right) \left( L+\varepsilon -\frac{1}{2}\right) 
\nonumber \\
m_{2S}^{2} &=&2\hat{\mu}^{2}\left( \frac{h_{2}}{s}\right) +\left( \hat{B}%
+\nu \right) \hat{\mu}\left( \frac{h_{1}}{s}\right) +\hat{\mu}\left( \frac{%
h_{1}}{s}\right) \beta _{t}\left( m_{t}Z-A_{t}\frac{Z^{2}%
}{3}\right)  \nonumber \\
m_{12}^{2} &=&-\overline{g}^{2}h_{1}h_{2}+2\hat{\mu}^{2}\left( \frac{%
h_{1}h_{2}}{s^{2}}\right) +\hat{B}\hat{\mu}+\hat{\mu}\beta _{t}\left( m_{t}%
Z-A_{t}\frac{Z^{2}}{3}\right)  \nonumber \\
Z &=&\frac{m_{t}\left( A_{t}+\hat{\mu}\cot \beta \right) }{%
m_{t}^{2}+\frac{1}{2}\left( m_{Q_{3}}^{2}+m_{T}^{2}\right) }  \label{L}\end{aligned}$$

The parameter L characterizes the top-stop mass splitting and can be relatively large, while $\varepsilon $ depends on the low energy scale chosen to define the running parameters — we take $Q^{2}\sim \left( h_{1}^{2}+h_{2}^{2}\right) $ in this paper so that $\left| \varepsilon \right| \sim \left| \ln h_{t}^{2}\right| <1.$

The CP odd scalar (mass)$^2$ matrix with the would-be Goldstone boson projected out is as follows,

$$\left( 
\begin{array}{ll}
-\hat{B}\hat{\mu}\frac{h_{1}^{2}+h_{2}^{2}}{h_{1}h_{2}} & -\left( \hat{B}%
-3\nu \right)  \hat{\mu}\frac{\sqrt{h_{1}^{2}+h_{2}^{2}}}{s} \\ 
&  \\ 
-\left( \hat{B}-3\nu \right) \hat{\mu}\frac{\sqrt{h_{1}^{2}+h_{2}^{2}}}{s} & 
-3A_{\kappa }\nu -\left( \hat{B}+3\nu \right) \hat{\mu}\frac{h_{1}h_{2}}{%
s_{2}}
\end{array}
\right)  \label{M}$$

The minimization of the potential fixes $\hat{B}\hat{\mu}$ and $ A_{\kappa }\nu $ to be negative, so that the diagonal entries in (\[M\]) are 