H. H. Pitz

Investigation of nuclear structure by resonance fluorescence scattering

Abstract After and introduction to the subject, the formalism describing nuclear resonance scattering (NRF) is briefly summarized. Experimental techniques and developments are discussed in some detail. Recent results are presented from systematic NRF experiments studying low-lying dipole excitations in heavy nuclei. The following topics are covered: the systematics and fragmentation of the M1 Scissors Mode in even-even rare earth and actinide nuclei, its deformation dependence and saturation behaviour, the existence of the Scissors Mode in odd deformed nuclei, 2 + ⊗ 3 − two-phonon E1 excitations in N =82 isotones and Z =50 isotopes, 2 + ⊗ 3 − ⊗ particle multiplets in odd nuclei around N =82, low-lying ΔK =0 electric dipole excitations in deformed nuclei, and E1 excitations around 2.6 MeV in deformed nuclei, which are interpreted as candidates for novel two-phonon excitations (coupling of the K =1 octupole and K =2 γ-vibrations).

Transition Rates between Mixed Symmetry States: First Measurement in 94 Mo

The nucleus

Low-energy photon scattering off 142,146,148,150Nd: An investigation in the mass region of a nuclear shape transition☆

{}^{94}\mathrm{Mo}

Proton–neutron structure of the N=52 nucleus 92Zr

was investigated using a powerful combination of

Lifetimes of two-phonon 1− states in even N = 82 nuclei

\ensuremath{\gamma}

New evidence for the E1 core polarization in spherical nuclei

-singles photon scattering experiments and

A sectored Ge-Compton polarimeter for parity assignments in photon scattering experiments

\ensuremath{\gamma}\ensuremath{\gamma}

Observation of a 1− two phonon 2+ ⊗ 3− excitation in 116Sn and 124Sn

-coincidence studies following the

Low-lying E1 and M1 strengths in the deformed nucleus 160Gd☆

\ensuremath{\beta}

Polarised bremsstrahlung nuclear-resonance fluorescence set-up at the 15~MeV linac in Gent.

decay of