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We present a new global optical potential (GOP) for nucleus-nucleus systems,including neutron-rich and proton-rich isotopes, in the energy range of $50\sim 400$ MeV/u. The GOP is derived from the microscopic folding model with thecomplex $G$-matrix interaction CEG07 and the global density presented by S{\~a}o Paulo group. The folding model well accounts for realistic complex opticalpotentials of nucleus-nucleus systems and reproduces the existing elasticscattering data for stable heavy-ion projectiles at incident energies above 50MeV/u. We then calculate the folding-model potentials (FMPs) for projectiles ofeven-even isotopes, $^{8-22}$C, $^{12-24}$O, $^{16-38}$Ne, $^{20-40}$Mg,$^{22-48}$Si, $^{26-52}$S, $^{30-62}$Ar, and $^{34-70}$Ca, scattered by stabletarget nuclei of $^{12}$C, $^{16}$O, $^{28}$Si, $^{40}$Ca $^{58}$Ni, $^{90}$Zr,$^{120}$Sn, and $^{208}$Pb at the incident energy of 50, 60, 70, 80, 100, 120,140, 160, 180, 200, 250, 300, 350, and 400 MeV/u. The calculated FMP isrepresented, with a sufficient accuracy, by a linear combination of 10-rangeGaussian functions. The expansion coefficients depend on the incident energy,the projectile and target mass numbers and the projectile atomic number, whilethe range parameters are taken to depend only on the projectile and target massnumbers. The adequate mass region of the present GOP by the global density isinspected in comparison with FMP by realistic density. The full set of therange parameters and the coefficients for all the projectile-targetcombinations at each incident energy are provided on a permanent open-accesswebsite together with a Fortran program for calculating the microscopic-basisGOP (MGOP) for a desired projectile nucleus by the spline interpolation overthe incident energy and the target mass number.

Global optical potential for nucleus-nucleus systems from 50 MeV/u to 400 MeV/u