Résumé : Quadrupole and octupole correlations in 194Pb are investigated by means of the generator coordinate method. Static microscopic wave functions are obtained by constrained Hartree-Fock+BCS calculations using the effective interaction SkM*. Quadrupole deformations from ground state to hyperdeformation region are included. Superdeformed band heads of both parities are predicted. The depopulation of the even superdeformed band is calculated. The odd-parity superdeformed band slowly decays to the ground even-parity superdeformed band over many E1 transitions. © 1995.