Positive Parity Levels of 21,23Na Isotopes by Using the Nuclear Shell
The energy levels and transition probabilities B(E2; ↓) i B(M1; ↓) have been investigated for 21,23Na isotopes by using the (USDA and USDB) interactions in the (sd-shell) model space. In the calculations of the shell model, it has been assumed that all possible many-nucleon configurations are specified by the (0d5/2, 1s1/2 i 0d3/2) states above 16O doubly magic nucleus. The available empirical data are in a good agreement with predictions of theoretical energy levels. Spins and parities are affirmed for new levels, transition probabilities B(E2; ↓) and B(M1; ↓) are predicted as well.
A.K. Hasan, A.N. Rahim. Study of nuclear structure of 24,26Na isotopes by using USDB interaction. Int. J. Sci. Res. Publ. 8 (9), 169 (2018). https://doi.org/10.29322/IJSRP.8.9.2018.p8125
A.A. Al-Sammarraie, M.L. Inche Ibrahim, M.A. Saeed, F.I. Sharrad, H. Abu Kassim. Inelastic electric and magnetic electron scattering form factors of 24Mg nucleus: Role of g factors. Int. J. Modern Phys. E 26 (5), 1750032 (2017). https://doi.org/10.1142/S021830131750032X
B.N. Giv, S. Mohammadi. Calculating energy levels in 49Mn/49Cr mirror nuclei with OXBASH code. Computational Biology and Bioinformatics 5 (5), 70 (2017). https://doi.org/10.11648/j.cbb.20170505.13
S. Mohammadi, M. Mounesi. Energy levels calculations of 20Ne and 21Ne isotopes. Amer. J. Modern Phys. 4 (3-1), 36 (2015).
C. Yuan, M. Zhang, N. Lan, Y. Fang. Two-nucleon excitation from p to sd shell in 12,14C. Nucl. Phys. Rev. 28 (3), 1 (2011).
S. Mohammadi, Z. Firozi. Energy levels calculations of 24Mg and 25Mg isotopes using OXBASH code. American J. Modern Phys. 4 (3-1), 44 (2015).
A.K. Hasan, F.H. Obeed. Energy levels and reduced transition probabilities of 18−20F isotopes using USDA and W Hamiltonians. Int. J. Phys. Sci. 12, 10, 118 (2017). https://doi.org/10.5897/IJPS2017.4630
K.S. Jassim, A.A. Al-Sammarrae, F.I. Sharrad, H. Abu Kassim. Elastic and inelastic electron-nucleus scattering form factors of some light nuclei: 23Na 25Mg, 27Al, and 41Ca. Phys. Rev. C 89, 014304 (2014). https://doi.org/10.1103/PhysRevC.89.014304
A.K. Hasan. Shell model calculations for 18,19,20O isotopes. Ukr. J. Phys. 63 (3), 189 (2018). https://doi.org/10.15407/ujpe63.3.189
F.I. Sharrad, A.A. Okhunov, N. Yusof, H. Abu Kassim. Binding energy and B(E2; 4+1 2+1 ) Calculations for nuclei with A = 20. AIP Conf. Proc. 1528, 376 (2013). https://doi.org/10.1063/1.4803629
P.J. Brussaard , P.W.M. Glaudemans. Shell-Model Applications in Nuclear Spectroscopy (North-Holland, 1977).
B.A. Brown. Lecture Notes in Nuclear Structure Physics (NSCL, 2005).
A.A. Al-Sammarraie, F.I. Sharrad, N. Yusof, H. Abu Kassim. Longitudinal and transverse electron-nucleus scattering form factors of 25Mg. Phys. Rev. C 92, 034327 (2015). https://doi.org/10.1103/PhysRevC.92.034327
A. Brown, W.A. Richter. New USD Hamiltonians for the sd shell. Phys. Rev. C 74 034315 (2006). https://doi.org/10.1103/PhysRevC.74.034315
A.D. Salman, N. Al-Dahan, F.I. Sharrad. Calculation of inelastic electron nucleus scattering form factors of 29Si. Int. J. Mod. Phys. E 23, 1450046 (2014). https://doi.org/10.1142/S0218301314500463
A.A. Al-Sammarraie, F.I. Sharrad, N. Yusof, H. Abu Kassim. Application of USDA and SDBA Hamiltonians in calculating the excited states of odd-A magnesium isotopes. Eur. Phys. J. Plus 129, 125 (2014). https://doi.org/10.1140/epjp/i2014-14125-0
R.B. Firestone. Nuclear data sheets for A = 21. Nucl. Data Sheets 127 1 (2015). https://doi.org/10.1016/j.nds.2015.07.001
R.B. Firestone. Nuclear data sheets for A = 23. Nucl. Data Sheets 108, 1 (2007). https://doi.org/10.1016/j.nds.2007.01.002