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Collective rotations of fission isomers in actinide nuclei
Using the total-Routhian-surface (TRS) method, the rotational behaviors of fission isomers in the second well of actinide nuclei 234–242 U, 236–244 Pu...
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Positive parity states and some electromagnetic transition properties of even-odd erbium isotopes
The positive spin states of even-odd erbium isotopes ( 159,163,167 Er) were studied within the framework of the interacting boson-fermion model. The...
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Properties of the 3/2−[521] band in the odd-N rare-earth nuclei
High-spin states in 161 Er have been studied experimentally via the 150 Nd( 16 O, 5 n ) reaction at a beam energy of 86 MeV. Three rotational bands built...
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Charge radii and magnetic moments of odd- A 183-189Pb isotopes
Isotope shifts and hyperfine splitting parameters have been measured for the neutron-deficient odd-mass lead isotopes 183-189 Pb . The measurement was...
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Revised spin-parity assignment and a new interpretation of the high-spin isomer in 151Er
The high-spin isomer in 151 Er ( E x = 10.3 MeV, T 1/2 = 420 ns) has been studied by the 116 Sn ( 40 Ar , 5n) 151 Er reaction at 197MeV. From the
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Comparing some predictions between Davidson-like potentials and interacting boson model: X(5) behavior of even-even 128–140Nd isotopes
We denote that the level scheme of the transitional nuclei 128–140 Nd also presents the characteristic X (5) pattern, not only in the ground-state...
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Qβ measurements of 158, 159Pm , 159, 161Sm , 160-165Eu , 163Gd and 166Tb using a total absorption BGO detector
Q β values of the neutron-rich isotopes of 160-165 Eu and 163 Gd were measured for the first time using a total absorption bismuth germanate (BGO)...
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Production of heavy neutron-rich nuclei “south" of lead
The production of heavy neutron-rich nuclei is investigated using cold-fragmentation reactions. More than 25 new heavy neutron-rich nuclei were...
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Evidence for a Kπ = 1/2+ isomer in neutron-rich 185Ta
Excited states in neutron-rich 185 Ta have been populated following the one-proton pickup reaction of 186 W( 18 O, 19 F). In-beam γ -rays were measured in...
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Investigation on phase and shape transitions in the hot rotating nucleus 154Dy
A statistical theory for hot rotating nuclei incorporating deformation, collective and non-collective rotational degrees of freedom, shell effects...
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Structure of low-spin states in the doubly-odd 182Ir nucleus
Low-spin states of 182 Ir were populated through the β + /EC decay of 182 Pt . Two strong E 2 transitions were observed for the first time: a 25.7keV...
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Observation of M3 isomeric transition from 156mPm through the βdecay of 156Nd
An M 3 transition in a doubly odd nucleus of 156 Pm was identified by internal conversion electron measurement through the β-decay of 156 Nd which was...
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Deformation change in light iridium nuclei from laser spectroscopy
Laser spectroscopy measurements have been performed on neutron-deficient and stable Ir isotopes using the COMPLIS experimental setup installed at...
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Low-spin states in 182Os and Kπ = 0+, 2+ excited bands
Excited states in 182 Os were populated by the β + /EC decay of 182 Ir following mass separation. Gamma-ray and conversion electron spectroscopy...
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Excited states in neutron-rich 188W produced by an 18O-induced 2-neutron transfer reaction
Excited states in neutron-rich 188 W have been populated using a 186 W( 18 O, 16 O) reaction. In-beam γ-rays were measured in coincidence with scattered...
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Observation of a πh9/2 ⊗ νi13/2 oblate band in 188Tl
Excited states in 188 Tl have been studied experimentally using the 157 Gd ( 35 Cl, 4n) reaction at a beam energy of 170MeV. A rotational band built on...
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Shape-driving effect of the proton 1/2[541] band in 171Ta
High-spin states in 171 Ta were populated through the heavy-ion fusion-evaporation reaction 157 Gd ( 19 F, 5n) 171 Ta at 105MeV beam energy. Lifetimes of...
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Nuclear quadrupole moments of 5/2- and 9/2- states in 169Ta
The nuclear spectroscopic quadrupole moments for the π h 9/2 5/2 - , 1/2 - [541] and the π h 11/2 9/2 - , 9/2 - [514] isomeric states in 169 Ta have been measured...
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A theoretical description of energy spectra and two-neutron separation energies for neutron-rich zirconium isotopes
Very recently the atomic masses of neutron-rich Zr isotopes, from 96 Zr to 104 Zr, have been measured with high precision. Using a schematic...