PAPER / ARXIV:2609.13902
C. Walz (1), O. Burda (1), L.M. Donaldson (2,3), R.W. Fearick (4), S.V. Förtsch (3), H. Fujita (5), P. von Neumann-Cosel (1), R. Neveling (3), N. Pietralla (1), A. Richter (1), F.D. Smit (3), C. Stahl (1), J.A. Swartz (3,6) ((1) Institut für Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany, (2) School of Physics, University of the Witwatersrand, Johannesburg 2050, South Africa, (3) iThemba Laboratory for Accelerator Based Sciences, Somerset West 7129, South Africa, (4) Department of Physics, University of Cape Town, Rondebosch 7700, South Africa, (5) Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan, (6) Department of Physics, University of Stellenbosch, Matieland 7602, South Africa)
RESUMO
This is the first of two papers discussing a new signature of quadrupole mixed-symmetry states in the vibrational nuclei $^{92,94}$Zr and $^{94}$Mo based on proton and neutron transition densities derived from the comparison of inelastic electron and proton scattering experiments. Results of the $(e,e^\prime)$ and $(p,p^\prime)$ experiments on these nuclei as well as $(p,p^\prime)$ data for other potential cases $^{96}$Mo and $^{70}$Zn are presented. Spin and parity quantum numbers of excited states are assigned based on angular distributions from the proton scattering data in comparison to calculations employing form factors from the collective model in distorted-wave Born approximation. Possible candidates of one-phonon fully symmetric and mixed-symmetry states as well as members of two-phonon multiplets are identified.
NO MESMO MAPA