ADOPTED LEVELS for 159Nd

Author: Balraj Singh |  Citation: ENSDF |  Cutoff date: 07-June-2023 

Author: Filip G Kondev |  Citation: ENSDF |  Cutoff date: 20-Feb-2017 

Authors: Balraj Singh and Michael Birch |  Citation: ENSDF |  Cutoff date: 30-SEP-2013 

 Full ENSDF file | Adopted Levels (PDF version) 


Q(β-)=6830 keV 30S(n)= 3960 keV 30S(p)= 12860 keV SYQ(α)= -4370 keV SY
Reference: 2017WA10

General Comments:

2012Ku26: 159Nd produced and identified in 9Be(238U,F), E=1 GeV/nucleon reaction using SIS-18 synchrotron facility at GSI. Target=1.6 g/cm2 9Be placed at the entrance of projectile Fragment Separator (FRS). Particle identification was achieved by event-by-event in-flight analysis of time-of-flight, energy loss measurement, and magnetic rigidity (tof-ΔE’-Bρ). Time-of-flight measured using two plastic scintillation detectors, energy loss or deposit by ionization chambers (MUSIC), and magnetic rigidity by four time-projection chambers (TPC), which also provided energy deposit information. Isomer tagging method for known μs isomers was used to verify event-by-event identification and in-flight separation of new isotopes. Gamma rays from the known isomers were recorded in coincidence with the incoming ions using either the RISING array of Ge detectors at GSI or only two Ge detectors, a stopper foil and a scintillator for veto signal. Measured production cross section. Comparison of measured σ with predictions from ABRABLA model and EPAX-3 model

2017Wu04: 159Pr produced at the RIBF-RIKEN facility in 9Be(238U,F),E(238U)=345 MeV/nucleon, optimized for the transmission of 158Nd and 170Dy, followed by the identification of the nuclide of interest using the BigRIPS separator by determining α/Q ratio using the tof-Bρ-ΔE method using the ZeroDegree Spectrometer, and finally implanted into the beta-counting system WAS3ABi, surrounded by the EURICA array of 84 HPGe detectors. Measured (implanted ions)β-(t), (implanted ions)β-γ(t) and (implanted ions)γ(t) correlations, and T1/2 of the g.s. of 159Nd

2018Or02: measured mass of the g.s. from cyclotron frequency ratios using the Canadian Penning Trap mass spectrometer at the CARIBU-ANL facility.

Theoretical nuclear structure calculations:

2022An05: calculated charge radii and odd-even staggering (OES) effects using the relativistic mean field (RMF-BCS) and the modified RMF(BCS) approaches.

2022Pa25: calculated binding energy, S(n), S(2n), rotational energies, potential energy curves, neutron, proton and matter radii, rms charge radii, β2 quadrupole deformations, neutron and proton Fermi energies using point-coupling deformed relativistic Hartree-Bogoliubov theory in continuum (DRHBc) theory with the density functional α(p)-PK1.

2020Li53: calculated energy levels, Jπ, ground-state band, moments of inertia, bandhead energy of isomeric state using modified Nilsson parameters to generate deformed bases for the projected shell model.

2018Ou01: calculated binding energy, S(n), S(2n), nuclear radii, quadrupole-deformation parameters, potential energy curves, Q(β-)values, β--decay T1/2 using Hartree-Fock-Bogoliubov mean-field theory.

2015El05: calculated ground state energy, S(2n) using HFB method with SLy5 Skyrme and Gogny forces.

Q-value: Estimated uncertainties (2021Wa16): 300 for S(p) and Q(α).

Q-value: Q(β-n)=1311 30, S(2n)=9373 30, S(2p)=24370 400 (syst) (2021Wa16).




E(level)
(keV)
T1/2(level)
  0 485 ms +39-20 
% β- = 100
% β-n = ?

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Additional Level Data and Comments:

E(level)Jπ(level)T1/2(level)Comments
  0 485 ms +39-20 
% β- = 100
% β-n = ?
Production σ(at 1 GeV/nucleon)=39 nb 4 (2012Ku26).

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