ADOPTED LEVELS, GAMMAS for 62Cr
Authors: Balraj Singh, Huang Xiaolong, and Wang Xianghan | Citation: Nucl. Data Sheets 204, 1 (2025) | Cutoff date: 30-Jun-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=7671 keV 7 | S(n)= 6427 keV 4 | S(p)= 1796×101 keV 23 | Q(α)= -1236×101 keV 18 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 62V β- decay (33.5 MS) | B | 63V β-n decay (19.6 MS) |
| C | 1H(62Cr,62Cr’γ) | D | 9Be(62Cr,62Cr’γ) |
| E | 9Be(63Mn,62CrG) | F | 9Be(65Mn,62CrG), |
| G | Coulomb Excitation | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | ABCDEFG | 0+ | 200 ms 12 % β- = 100 % β-n = ? | |||||
| 446 1 | ABCDEFG | 2+ | 93 ps 9 | 446 1 | 100 | (E2) | 0 | 0+ |
| 1174 3 | CDEF | (4+) | 4.7 ps 6 | 728 3 | 100 | [E2] | 446 | 2+ |
| 1458 6 | F | (0+) | 1012 6 | | 446 | 2+ | ||
E(level): From Eγ data
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Additional Data |
| 446 | 2+ | 93 ps 9 | 446 1 | (E2) | B(E2)(W.u.)=23.7 23 |
| 1174 | (4+) | 4.7 ps 6 | 728 3 | [E2] | B(E2)(W.u.)=40 6 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 200 ms 12 % β- = 100 % β-n = ? | Theoretical T1/2(β)=159.7 ms, %β-n=0.755, 0.559 (2021Mi17, two values refer to different fission barriers). E(level): Theoretical T1/2(β)=159.7 ms, %β-n=0.755, 0.559 (2021Mi17, two values refer to different fission barriers). |
| 446 | 2+ | 93 ps 9 | Deformation parameter β2=0.27 3 (2009Ao01) from 1H(62Cr,62Cr’); 0.33 (2015Br10) in 9Be(63Mn,62Cr). |
| 1174 | (4+) | 4.7 ps 6 | Deformation parameter β2=0.35 (2015Br10) in 9Be(63Mn,62Cr). |
| E(level) | E(gamma) | Comments |
| 446 | 446 | E(γ): weighted average of 446 1 (62V decay); 449 4 (1H(62Cr,62Cr’γ)); 440 7 (9Be(62Cr,62Cr’γ)); 445 2 (63Mn,62Crγ); 447 6 (Coul. ex.). M(γ): 446, 2+ level is Coulomb excited from 0+ |
| 1174 | 728 | E(γ): weighted average of 734 10 (1H(62Cr,62Cr’γ)); 725 9 (9Be(62Cr,62Cr’γ)); 728 3 (63Mn,62Crγ) |
| 1458 | 1012 | E(γ): from 2021Ga02 in 9Be(65Mn,62Crγ), |
1985Gu14: first evidence for production of 62Cr in Ti,Ta(86Kr,X) at E=33 MeV/nucleon; energy loss and time-of-flight methods.
1990Tu01, 1994Se12: mass measurements by time-of-flight method; Th(p,F) production method
1998Am04: 62Cr produced in fragmentation of 86Kr beam at 500 MeV/nucleon hitting a Be target at GSI facility. First measurement of isotopic half-life.
1999So20 (also 1999Le67): 62Cr produced in 58Ni(86Kr,X), E=60.4 MeV/nucleon at GANIL facility using LISE3 doubly achromatic spectrometer. Measured Eγ, Iγ, βγ coin, isotopic half-life from β decay timing.
2003So02 (also 2002MaZN thesis,2003So21, 2005Ga01): 62V produced in 58Ni(76Ge,X), E=61.8 MeV/nucleon at GANIL facility using LISE3 doubly achromatic spectrometer. Measured β, γ, isotopic half-life from β decay timing.
2009Cr02: Be(76Ge,X) E=130 MeV/nucleon, measured production yield
2022Si20: measured mass excess=-40855 keV 19 using Multiple-Reflection Time-Of-Flight Mass Spectrometer (δ-tof-ms) TITAN at TRIUMF. This can be compared with mass excess=-40853 keV 3 in 2021Wa16.
Other mass measurements: 2018Mo14, 2016Me07.
Theoretical nuclear structure calculations:
2023Li18: calculated energy levels, Jπ, B(E2), effective single-particle energies (ESPEs) using shell model, discussed merging of the island of inversion.
2022He16: calculated S(2n), rms charge radius, proton and neutron density distribution using relativistic Hartree-Bogoliubov model with density-dependent meson-exchange relativistic energy functionals.
2022Ho02: calculated quadrupole deformation parameter β2, S(2n), rms matter radius, hexadecapole deformation parameter β4, cumulative single-particle hexadecapole moment of n=38 isotones, difference of the charge square radii, diffuseness parameters using Skyrme-Hartree-Fock method in three-dimensional coordinate space.
2021Ga02: calculated levels, Jπ, B(E2) using shell-model with Lenzi-Nowacki-Poves-Sieja (LNPS) interaction.
2020Na28: calculated energy levels, Jπ, B(E2), B(>), deformation parameters, potential energy surface using interacting boson model.
2018Sa40: calculated potential energy curves, T1/2, Q(β-), β-n probability, Gamow-Teller strength distributions using constrained HF+BCS with Skyrme force SLy4.
2014Ji14: calculated levels, Jπ, deformation of ground state, B(E2) of collective states using macroscopic-microscopic model.
2014Ko16: calculated levels, Jπ, B(E2), E(4+)/E(2+), E(6+)/E(4+), quadrupole moment, energy surface contours in (β-γ) plane using proton-neutron interacting boson model (IBM-2) and interacting shell model (ISM).
2013Ba30: calculated binding energy, quadrupole moment, potential energy surface, single-particle levels, ground state charge radius using self-consistent RMF theory with effective interactions.
2013Ts02: calculated low-lying levels, Jπ, B(E2), deformation using large-scale Monte Carlo shell model.
2012Ca30: calculated energy levels, Jπ, electric quadrupole and dipole magnetic moments using shell model with FPD6 and GXPF1 interactions.
2012Ro39: calculated B(E2), B(E3) as function of β2 using angular momentum projection with the rotational formula and spherical limit, and nean-field wave functions in the HFB approximation with Gogny D1S interaction assuming axial symmetry.
2012Sa33: calculated potential energy surface contours in β-γ plane, levels, Jπ, B(E2), E0 transition strengths with solution of Schrodinger equation for five-dimensional quadrupole collective Hamiltonian, with constrained Hartree-Fock-Bogoliubov plus local quasiparticle random-phase approximation (CHFB+LQRPA) method.
2011Yo04: calculated total energy curves, energies of first 2+ and 4+ states, B(E2), spectroscopic quadrupole moment of the first 2+ state, rms radius, quadrupole masses, and collective wave functions of ground state using microscopic model based on Skyrme and the pairing energy density functionals (EDF).
2010Le20: calculated levels, Jπ, B(E2), quadrupole moment, occupation of neutron intruder orbitals and percentage of particle-hole excitations using interacting shell-model with 48Ca core and effective interaction based on γ matrix; discussed island of inversion around n=40.
2010Ya17: calculated moments of inertia of yrast bands, and energies of yrast, 2-qp and 4-qp configurations using projected shell model (PSM).
2008Ka41: calculated levels, Jπ, B(E2), single-particle energies using shell model.
2008Yo02: calculated single-particle energies, excitation energies, transition densities, QPRA amplitudes, B(E2), isoscalar quadrupole, monopole pair and quadrupole pair transition strengths for Kπ=0+ states using quasiparticle random phase approximation, and Hartree-Fock-Bogoliubov formalism.
2002Ca48: calculated level energies, Jπ, B(E2) using large-scale shell model calculations
Other theoretical calculations: 24 references for structure and two for decay, retrieved from the NSR database, are listed in this dataset as ’document’ records.
Q-value: S(2n)=10087 4, S(2p)=33330 240, Q(β-n)=2818 4 (2021Wa16)