Impact of nuclear structure on the background in the chiral magnetic effect in Ru-96(44) + Ru-96(44) and Zr-96(40) + Zr-96(40) collisions at root S-NN=7.7-200 GeV from a multiphase transport model

Impacts of nuclear structure on multiplicity (N-ch) and anisotropic flows (v(2) and v(3)) in the isobaric collisions of Ru-96(44) + Ru-96(44) and Zr-96(40) + Zr-96(40) at root S-NN = 7.7, 27, 62.4, and 200 GeV are investigated by using the string melting version of a multiphase transport (AMPT) model. In comparison with the experimental data released recently by the STAR Collaboration, it is found that the impact of quadrupole deformation beta(2) on the v(2) difference is mainly manifested in the most central collisions, while the octupole deformation beta(3) is in the near-central collisions, and the neutron skin effect dominates in the mid-central collisions. Viewing from the energy dependence, these effects are magnified at lower energies.