Study of the 130Ba nucleus with the (p, t) reaction

Investigation of pair-correlated 0+ states in Ba134 via the Ba136Ondze1, Rebeiro2, Triambak3 et al. 2021Phys. Rev. CSelf Cite7170View full textAdd to dashboardCite

“…Adequate 136 Ba(p, t ) angular distribution data were not presented in both references. In comparison, measured 132,130 Ba(p, t ) cross sections do not show a similar fragmentation of the monopole strength [41,42].…”

Structure investigation with the (p,t) reaction onBa132,134nuclei

“…Two other neighboring even-even nuclei, 128 Ba and 130 Ba, recently investigated via the (p,t) reactions (Refs. [4] and [7]) also show a structure resembling that of the O(6) symmetry. Both the experimental and theoretical data for these four nuclei support the idea, discussed in Ref.…”

“…For the transfer of the two neutrons, experiments were performed similarly to Ref. [7] by considering a cluster form factor in the neutron configuration (1h 11/2 ) 2 for L = even and (1h 11/2 , 1g 7/2 ) for L = odd. Alternative form factors such as (2d 3/2 ) 2 , (1g 7/2 ) 2 , or (3s 1/2 ) 2 for L = even and (1h 11/2 , 2d 5/2 ) for L = odd give similar shapes and the same pattern of the relative normalization factors.…”

“…The role of the mixing of the collective states with the intruder (quasiparticle) states may be of major importance in understanding the structure of 132 Ba and 134 Ba near the pairing gap, as discussed for other even-even Ba isotopes (Ref. [7] and therein).…”

“…[1] and reiterated in Ref. [7], that Ba isotopes in the N < 82 region pass through a transitional structure located between vibrational [U(5)] nuclei and γ -soft nuclei [O (6)]. …”