The dimensionless tidal deformability of a 1.4 M_⊙ neutron star Λ_1.4 as a function of the electric dipole polarizability α_D of ²⁰⁸Pb and the corresponding neutron star radius for DD–PC EOSs. The horizontal shaded regions mark the limits derived from GW170817 event (B. P. Abbott et al. 2019) and those obtained in the present study, while the vertical band denotes the experimental result for α_D[²⁰⁸Pb] and the corresponding neutron star radius inferred in this work.