Core-coupled states and split proton-neutron quasiparticle multiplets in 122-126Ag

  title={Core-coupled states and split proton-neutron quasiparticle multiplets in 122-126Ag},
  author={S.Lalkovski and A.M.Bruce and A.Jungclaus and M.Gorska and M.Pfutzner and L.Caceres and F.Naqvi and S.Pietri and Zs.Podolyak and G. S. Simpson and K.Andgren and P.Bednarczyk and T.Beck and J.Benlliure and G.Benzoni and E.Casarejos and B.Cederwall and F.C.L.Crespi and J.J.Cuenca-Garcia and I.J.Cullen and A. M. Denis Bacelar and P. Detistov and P.Doornenbal and G.F.Farrelly and A.B.Garnsworthy and H.Geissel and W.Gelletly and J.Gerl and J.Grebosz and B.Hadinia and M.Hellstrom and C.Hinke and R.Hoischen and G.Ilie and G.Jaworski and J.Jolie and A.Khaplanov and S.Kisyov and M.Kmiecik and I.Kojouharov and R.Kumar and N.Kurz and A.Maj and S.Mandal and V.Modamio and F.Montes and S.Myalski and M.Palacz and W.Prokopowicz and P.Reiter and P.H.Regan and D.Rudolph and H.Schaffner and D.Sohler and S.J.Steer and S.Tashenov and J.Walker and P.M.Walker and H.Weick and E.Werner-Malento and O.Wieland and H.J.Wollersheim and M.Zhekova},
  journal={Physical Review C},
Neutron-rich silver isotopes were populated in the fragmentation of a Xe-136 beam and the relativistic fission of U-238. The fragments were mass analyzed with the GSI Fragment Separator and subsequently implanted into a passive stopper. Isomeric transitions were detected by 105 high-purity germanium detectors. Eight isomeric states were observed in Ag122-126 nuclei. The level schemes of Ag-122,Ag-123,Ag-125 were revised and extended with isomeric transitions being observed for the first time… 
14 Citations
Monopole-driven shell evolution below the doubly magic nucleus Sn 132 explored with the long-lived isomer in Pd 126
A new isomer with a half-life of 23.0(8) ms has been identified at 2406 keV in (126)Pd and is proposed to have a spin and parity of 10(+) with a maximally aligned configuration comprising two neutron
Isomeric states in neutron-rich 129In and the πg−19/2 ⊗ vh−111/2 multiplet
Within the RISING stopped beam campaign the neutron-rich indium isotopes with masses A=125-130 have been studied using the method of isomer spectroscopy. The decays of several isomeric states have
Shell evolution and isomers below 132Sn: Spectroscopy of neutron-rich 46Pd and 47Ag isotopes
Neutron-rich isotopes of Pd (Z = 46) and Ag (Z = 47) have attracted considerable interest in terms of the evolution of the N = 82 shell closure and its influence on the r -process nucleosynthesis.
Proton Shell Evolution below ^{132}Sn: First Measurement of Low-Lying β-Emitting Isomers in ^{123,125}Ag.
Shell-model calculations with the state-of-the-art V_{MU} plus M3Y spin-orbit interaction give a satisfactory description of the low-lying states in ^{123,125}Ag, and the tensor force is found to play a crucial role in the evolution of the size of the Z=40 subshell gap.
Nuclear Data Sheets for A=123
  • Jun Chen
  • Physics
  • 2021
E2 collectivity in shell-model calculations for odd-mass nuclei near 132Sn
Shell-model calculations for 127,129 In and 129,131 Sb are presented, and interpreted in the context of the particle-core coupling scheme, wherein proton g 9/2 holes or g 7/2 particles are added to
First-forbidden transitions in the reactor anomaly
We describe here microscopic calculations performed on the dominant forbidden transitions in reactor antineutrino spectra above 4 MeV using the nuclear shell model. By taking into account Coulomb


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Microsecond isomers in the In and Cd isotopes, in the mass range A=123 to 130, were investigated at the ILL reactor, Grenoble, using the LOHENGRIN mass spectrometer, through thermal-neutron induced
Spherical proton-neutron structure of isomeric states in 128Cd
The gamma-ray decay of isomeric states in the even-even nucleus Cd-128 has been observed. The nucleus of interest was produced both by the fragmentation of Xe-136 and the fission of U-238 primary
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Excited states in the neutron-rich 121, 123, 125Ag were studied via the fragmentation of a 136Xe beam at 120MeV/nucleon in a thick 9Be target. The levels in 121Ag were populated in the $ \beta$ decay
Observation of isomeric decays in the r-process waiting-point nucleus 130Cd82.
The gamma decay of excited states in the waiting-point nucleus (130)Cd(82) has been observed for the first time and state-of-the-art nuclear shell-model calculations allow us to follow nuclear isomerism throughout a full major neutron shell.
First observation of the decay of a 15- seniority v=4 isomer in 128Sn
Isomeric states in the semimagic Sn128-130 isotopes were populated in the fragmentation of a Xe-136 beam on a Be-9 target at an energy of 750 A.MeV. The decay of an isomeric state in Sn-128 at an
Single-particle isomeric states in 121Pd and 117Ru
Neutron-rich nuclei were populated in a relativistic fission of 238U. Gamma-rays with energies of 135 keV and 184 keV were associated with two isomeric states in 121Pd and 117Ru. Half-lives of
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This paper outlines some of the physics opportunities available with the GSI RISING active stopper and presents preliminary results from an experiment aimed at performing beta-delayed gamma-ray
Structural evolution in the neutron-rich Nuclei Zr106 and Zr108
The low-lying states in ¹⁰⁶Zr and ¹⁰⁸Zr have been investigated by means of β-γ and isomer spectroscopy at the radioactive isotope beam factory (RIBF), respectively. A new isomer with a half-life of