Structure of β-decay strength function Sβ (E) and Wigner spin-isospin SU(4) symmetry
Abstract
It is shown that when the parent nucleus has nn Borromean halo structure, then after Gamow-Teller (GT) β -decay of parent state or after M1 γ -decay of Isobar Analogue Resonance ( IAR ) the states with np tango halo structure or mixed np tango + nn Borromean halo structure can be populated. Resonances in the GT β -decay strength function Sβ (E) of halo nuclei may have np tango halo structure or mixed np tango + nn Borromean halo structure. Demonstrated that the nuclei with Z/N ≈ 0.6 may correspond to the SU(4) region.
References
1. Yu.V. Naumov et al., Sov. J. Part. Nucl. 14 (1983) 175.
2. I.N. Izosimov et al., Phys. of Part. and Nucl. 42 (2011) 963.
3. I. Tanihata, J. Phys. G: Nucl. Part. Phys. 22 (1996) 157.
4. A.S. Jensen et al., Rev. Mod. Phys. 76 (2004) 215.
5. B. Jonson, Phys. Rep. 389 (2004) 1.
6. I.N. Izosimov Vladivostok, Russia (2012) (World Scientific, 2013) 129-133.
7. I.N. Izosimov, AIP Conference Proceedings 1681 (2015) 030006.
8. I.N. Izosimov et al., EPJ Web of Conf. 107 (2016) 09003.
9. I.N. Izosimov, Phys. of At. Nucl. 88 (2017) 867.
10. Y. Suzuki and K. Yabana, Phys. Lett. B 272 (1991) 173.
11. L. Zhihong et al., Phys. Lett. B 527 (2002) 50.
12. http://www.nndc.bnl.gov.
13. Y. Fujita et al., Phys. Rev. Lett. 112 (2014) 112502.
14. Y. Fujita et al., Phys. Rev. C 91 (2015) 064316.
15. I.N. Izosimov, Phys. of Part. and Nucl. 30 (1999) 131.
16. E.P. Wigner, Phys. Rev. 51 (1937) 106.
17. Yu.S. Lutostansky et al., Phys. of At. Nucl. 79 (2016) 929.
18. M. Chakraborty et al., Phys. Rev. Lett. 45 (1980) 1073.
19. Yu.V. Gaponov et al., Heavy Ion Physics 3 (1996) 189.
Review
For citations:
Izosimov I.N. Structure of β-decay strength function Sβ (E) and Wigner spin-isospin SU(4) symmetry. Eurasian Journal of Physics and Functional Materials. 2019;3(2):145-150. https://doi.org/10.29317/ejpfm.2019030205
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