Phys. Rev. C 70, 034314 (2004) [5 pages]Probing the sustainability of the N=82 and Z=50 shell closures for neutron-rich nuclides: Decay of 120Rh75 to levels of 120Pd74Received 9 June 2004; published 28 September 2004 The low-energy levels of 120Pd74 were populated by β decay of 120Rh75, which was produced via projectile fragmentation of a 136Xe82 beam at 120 MeV∕nucleon. Delayed β-gated γ rays with energies of 438 and 618 keV were observed in coincidence with 120Rh75 fragments and assigned to the 21+→0+ and 41+→21+ transitions, respectively, in 120Pd74. Isomeric γ-ray transitions are also reported for 120Rh75 and 126Cd78. The low-energy structure of 120Pd74 shows remarkable similarity to those of the isotopic 108Pd62 and isotonic 128Xe74 suggesting that these nuclides share the same Z=50 and N=82 closed shell structures with neutron-rich 120Pd74. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.70.034314
DOI:
10.1103/PhysRevC.70.034314
PACS:
23.40.-s, 23.20.Lv, 21.60.Ev, 27.60.+j
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