1987Po04, 1992Bo37: ⁴⁴Cr produced and identified in Ni(⁵⁸Ni,X), E=55 MeV/nucleon; measured fragment spectra using LISE3 spectrometer at GANIL accelerator facility.

1994Bl10, 1996Fa09: ⁴⁴Cr produced in ⁹Be(⁵⁸Ni,X), E=650 MeV/nucleon; measured fragment spectra using fragment separator at GSI accelerator facility

2007Do17: Ni(⁵⁸Ni,X) E=74.5 MeV/nucleon ⁵⁸Ni beam was produced at GANIL. Target was 250 mg/cm² natural nickel. Fragments were selected by the α-LISE3 separator, identified with two micro-channel place (MCP) detectors and a setup consisting of silicon and Ge detectors by time of flight and energy loss, and implanted into double-sided silicon strip detectors (DSSSD). Measured E(p), I(p), implant-decay correlations. Deduced ⁴⁴Cr T_1/2, proton-emission probability.

2014Po05: Ni(⁵⁸Ni,X) E=160 MeV/nucleon ⁵⁸Ni beam was produced at National Superconducting Cyclotron Laboratory. Target was 580 mg/cm² thick natural nickel. Products were selected by the A1900 fragment separator and identified by time of flight and energy loss information then slowed in an aluminum foil and stopped in the active volume of the optical time-projection chamber (OTPC) which was filled with a mixture of He, Ar, and n gases and used to track charged particles. Measured reaction products, half-life, E(p), production σ, proton energy distribution. See also 2012Po03.

Mass measurement: 2020Fu05: measured mass excess of g.s. using RIBBL2 separator at CSRe-HIRFL, Lanzhou.

⁴⁴Cr decays to ⁴³Ti by εp and/or β⁺p decay

Theoretical structure calculations:

2022Ko04: calculated ground state energy, charge rms radius using Coupled cluster (α) and ab initio density functional theory.

2021Pe14: calculated potential energy curves as function of deformation parameter β₂ using constrained axial RHB calculations with several covariant energy density functionals.

2019Mi22: calculated binding energy and lowest isobaric analog 0⁺, t=0 to 3 excited stats, staggering amplitudes for the total energy, total isovector pairing gaps using shell-model Hamiltonian.

2017De15: calculated energies of 1-, 2⁺ and 3- levels, B(E2) for the first 2⁺ state, B(M1) values of 1⁺ states using HF+BCS+QRPA and QRPA(F) with finite-range interactions of Gogny type.

2016Me02: calculated B(E2) for the first 2⁺ state using shell model with KB3G interaction

2012Ca30: calculated energy levels, Jπ, electric quadrupole and magnetic dipole moments using shell model with FPD6 and GXPF1 interactions.

2011Ma08: calculated energy surfaces, quadrupole moments, pairing gaps using Hartree-Fock-Bogoliubov method using GXPF1A effective interaction

2005Pa26: calculated electric dipole strength distributions, pygmy resonance features using Self-consistent relativistic Hartree-Bogoliubov model, relativistic quasiparticle RPA.

2004Sv04: calculated level energies of isobaric analog 0⁺ states using algebraic shell model.

2002Ca48: calculated level energies, B(E2) using large-scale shell model.

1989Ab13: calculated levels, B(|l), β-decay log ft using shell model wave functions, and boson analysis.

Other theoretical calculations: 28 references for nuclear structure and five for radioactive decays retrieved from the NSR database (www.nndc.bnl.gov/nsr/) are listed in document records which can be accessed via web-based ENSDF database

Q-value: Estimated uncertainties (2021Wa16): 300 for Q(β^-), 210 for S(n).

Q-value: S(2n)=36620 300 (syst), S(2p)=2900 50, Q(εp)=8600 50 (2021Wa16); Q(ε)=10382 50 from newly measured mass of ⁴⁴V (M.E.=-23800.4 71) by 2022Wa39, compared to 10390 50 from 2021Wa16