Photoneutron cross sections for 96Zr: A systematic experimental study of photoneutron and radiative neutron capture cross sections for zirconium isotopes

Photoneutron cross sections were measured for Zr-96 near neutron threshold with quasimonochromatic laser-Compton-scattering. gamma-ray beams. A systematic analysis of photoneutron and radiative neutron capture data for zirconium isotopes within the statistical model calculation leads to a unified picture of low-energy gamma-ray strengths for zirconium isotopes that is described by the HFB + QRPA model of E1 strength supplemented with an extra gamma strength attributed to a giant M1 resonance. Results of the systematic analysis including radiative neutron capture cross sections for radioactive Zr-95 and Zr-93 nuclei are presented.