Nuclear electric dipole moment in the cluster model with a triton: 
Li7
 and 
B11
We calculate the electric dipole moment (EDM) of the nuclei Li7 and B11 in the cluster model with α (He4) and triton (H3) clusters as degrees of freedom. The Li7 and B11 nuclei are treated in the two- and three-body problem, respectively, using the Gaussian expansion method, assuming the one-meson exchange P, CP-odd nuclear forces. We find that Li7 and B11 have larger sensitivity to the CP violation than the deuteron. It is also suggested that the EDMs of Li7 and B11, together with those of Li6, Be9 and the 1/21+ excited state of C13, obey an approximate counting rule accounting for the EDM of the cluster and the α-N polarization. We show their sensitivity on the hadronic level CP violation in terms of the chiral effective-field theory and discuss their role in probing new physics beyond the standard model.