6533b856fe1ef96bd12b2517

RESEARCH PRODUCT

Study of the low-lying collective states in 94–100Mo isotopes using the MAVA

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Abstract A systematic investigation of reduced electric quadrupole decay strengths, B ( E 2 ) and level energies of even 94–100 Mo isotopes is performed using the microscopic anharmonic vibrator approach (MAVA). The MAVA is suited for dynamical microscopic description of two-phonon-like states and their energy splitting due to interaction with low-lying one-phonon states. The starting point for the model is a realistic single-particle valence space and a microscopic many-body Hamiltonian which is used to generate the one-phonon states by the use of the quasiparticle random-phase approximation (QRPA). The same Hamiltonian generates also the interaction between the one- and two-phonon states. Comparison of the calculated energies and B ( E 2 ) values with the available data suggests that 94–100 Mo are closer to anharmonic vibrators than deformed rotors.