Phys.Rev. C 104, 014302 (2021)

S.Lechner, Z.Y.Xu, M.L.Bissell, K.Blaum, B.Cheal, G.De Gregorio, C.S.Devlin, R.F.Garcia Ruiz, A.Gargano, H.Heylen, P.Imgram, A.Kanellakopoulos, A.Koszorus, S.Malbrunot-Ettenauer, R.Neugart, G.Neyens, W.Nortershauser, P.Plattner, L.V.Rodriguez, X.F.Yang, D.T.Yordanov

Probing the single-particle behavior above ¹³²Sn via electromagnetic moments of ^{133, 134}Sb and N=82 isotones

NUCLEAR MOMENTS ^133,134mSb; measured hyperfine structure spectra of the 7/2+ ground state of ¹³³Sb and the (7-) isomeric state of ¹³⁴Sb using the collinear laser spectroscopy (COLLAPS) at the radioactive ion-beam facility ISOLDE-CERN; deduced hyperfine structure constants, spins, static magnetic dipole and electric quadrupole moments; discussed single-particle behavior of nuclides above the doubly magic nucleus ¹³²Sn. Comparison with previous experimental results, and with shell-model calculations. ^133,134Sb isotopes produced in U(p, X) reaction using UC_x target, followed by separation of atomic antimony fragments by selective laser ionization, acceleration of ions to 50 keV, and finally mass separated by a magnetic separator and accumulated in a buffer-gas filled radio-frequency quadrupole cooler and buncher.

doi: 10.1103/PhysRevC.104.014302