right-handed Majorana neutrinos, [$$\begin{split}W&=\epsilon_{ab}\Big[(Y_U)_{ij}\bar{U}_iQ^a_jH_u^b-(Y_D)_{ij}\bar{D}_iQ^a_jH_d^b
 -(Y_E)_{ij}\bar{E}_iL^a_jH_d^b+(Y_\nu)_{ij} {N}_iL^a_jH_u^b
 \\
 &  + \mu H_u^a H_d^b\Big] + \frac{1}{2} M_N^{ij} {N}_i {N}_j ,\end{split}$$]{} where $\epsilon_{ab}$ is a totally antisymmetric tensor with $\epsilon_{12}=1$. The superfields in the superpotential represent right-handed neutrino-sneutrino pairs, in addition to the SM particles and their superpartners. They have the following SM gauge group SU(3)$_c \times$SU(2)$_L \times$U(1)$_Y$ quantum numbers: [$$\begin{split}&Q: (3,2,\frac16),~~\bar{U}: (\bar{3}, 1, -\frac23),~~\bar{D}: (\bar{3}, 1, \frac13)
  \\
  & L : (1, 2, -\frac12),~~\bar{E}: (1,1,1),~~N: (1,0,0)
  \\
  &H_u: (1,2,\frac12),~~H_d: (1,2,-\frac12).\end{split}$$]{} Relative minus signs of Yukawa terms are given to make the sign of terms responsible for the fermion Dirac masses to be the same.

The relevant soft supersymmetry (SUSY) breaking terms are given by [$$\begin{split}\mathcal{L}_{\mathrm{soft}} =& - (m_{N}^2)^i_j \tilde{N}^\dagger_i \tilde{N}_j -  (m_L^2)^j_i \tilde{L}^{\dagger i} \tilde{L}_j -  m_{H_u}^2 H_u^{\dagger}  H_u \\-& \Big[ \frac{1}{2} (B_N M)^{ij} \tilde{N}_i \tilde{N}_j  +  (\tilde{A_U})_{ij} \tilde{U}^{i} \tilde{Q}^{j} H_u -(\tilde{ A_D})_{ij} \tilde{D}^{i}\tilde{Q}^{j} H_d -(\tilde{A_E})_{ij} \tilde{E}^i\tilde{L}^j H_d  +B\mu H_u H_d + h.c.  \Big] .\end{split}$$]{}

We consider two origins of soft terms. The first one is gauge mediation. In the gauge mediation, sfermions obtain soft masses given by [@Giudice:1998bp] [$$\begin{split}m_{\tilde{f}}^2=4 \sum_a\Big(\frac{g_a^2}{16\pi^2}\Big)^2 C_a \sum_i \Big(\frac{F}{M_i}\Big)^2\ T_a({\cal R}_i) f(x_i)\end{split}$$]{} at the messenger scales $M_i$, where $C_a$ is the quadratic Casmir $\sum_\alpha T^\alpha T^\alpha$ of 