Quasiparticle-phonon model and quadrupole mixed-symmetry states of96Ru

Ch. Stoyanov, N. Pietralla, A. Andreev, N. Arsenyev, S. Ershov, V. Sargsyan, A. Vdovin
2016 EPJ Web of Conferences  
The structure of low-lying quadrupole states of 96 Ru was calculated within the Quasiparticle-Phonon Model. It is shown that symmetric and mixed-symmetry properties manifest themselves via the structure of the excited states. The first 2 + state is collective and neutron and proton transition matrix elements M n and M p are in-phase, while the neutron and proton transition matrix elements M n and M p have opposite signs for the third 2 + state. This property of the third 2 + state leads to a
more » ... ge M1 transition between the first and third 2 + states. It is an unambigous demonstration of the mixed-symmetry nature of the third 2 + state. The structure of the first 1 + state is calculated. The state is a member of the two-phonon multiplet generated by the coupling of the [2 + 1 ] QRPA and the [2 + 2 ] QRPA states. 7KLV LV DQ 2SHQ $FFHVV DUWLFOH GLVWULEXWHG XQGHU WKH WHUPV RI WKH &UHDWLYH &RPPRQV $WWULEXWLRQ /LFHQVH ZKLFK SHUPLWV XQUHVWULFWHG XVH GLVWULEXWLRQ DQG UHSURGXFWLRQ LQ DQ\ PHGLXP SURYLGHG WKH RULJLQDO ZRUN LV SURSHUO\ FLWHG 6 6 Article available at
doi:10.1051/epjconf/201610703001 fatcat:mzcvnxgl6fbt7dbiiflfy5f4fm