Signature inversion in the yrare band of 119Xe

Extended triaxial projected shell model approach for odd-neutron nuclei

“…High-spin states in odd-neutron Xe-isotopes have been investigated by various experimental groups [10,47,48,50,52,53,71], and in some nuclei side bands apart from the yrast states have been populated up to quite high angular momentum. In Figs.…”

“…TPSM energies for the lowest bands after configuration mixing are plotted along with the available experimental data for 117,119 Xe isotopes. Data is taken from [47,48]. plete basis space in the generalised approach is given by :…”

Three-quasineutron γ-band in 127Xe

“…Gamma-bands built on the ground-state configuration have been systematically reported in even-even Xe isotopes [22]. Further, the γ-band coupled to the νh 11/2 configuration has also been reported in corresponding odd-A Xe isotopes [23][24][25][26][27][28]. A γ-band built on an aligned twoquasiparticle configuration has been observed in 118,120 Xe [29,30].…”

“…With increasing angular momentum, the rotational alignment of a pair of neutrons takes place from the h 11/2 orbital and generates the higher spin states in this band with nh [50]. Band 2 is observed systematically in odd-A Xe isotopes [23][24][25][26][27]. Earlier it was suggested that this band originated due to the coupling of an h 11/2 quasineutron with the γ-band of the core (νh 11/2 ⊗ | + 2 2 core ) [26].…”

Search for the origin of wobbling motion in the A≈130 region: The case of Xe131

“…Being associated with mid/high-configurations, both the α = ±1/2 signature partners of the νh 11/2 band were expected to be observed in these nuclei. Systematically, two I π = 13/2 − states were reported in [119][120][121][122][123][124][125][126][127] Xe [13,[31][32][33][34]. The excitation energies of these I π = 13/2 − and I π = 15/2 − states relative to the energy of I π = 11/2 − state (i.e., E x after subtracting E 11/2 − ) are plotted as a function of mass number in Fig.…”