Microscopic description of 8Li and 8B nuclei within three-cluster model

Authors

  • V. S. Vasilevsky Bogolyubov Institute for Theoretical Physics, 14-B, Metrolohichna str., Kiev, 03680
  • N. Zh. Takibayev Department of Physics and Technology, al-Farabi Kazakh National University, 71 al-Farabi av., 050040 Almaty
  • A. D. Duisenbay Department of Physics and Technology, al-Farabi Kazakh National University, 71 al-Farabi av., 050040 Almaty

DOI:

https://doi.org/10.26577/phst-2016-1-90
        51 67

Keywords:

Cluster model, polarization, resonance state

Abstract

We make theoretical analysis of bound and resonance states of 8Li and 8B nuclei. The analysis is carried out within a three-cluster microscopic model which account for polarizability of interacting clusters. Main attention is paid to the nature of resonances states embedded in two-cluster continuum. We also study effects of the cluster polarization on the spectrum of bound and resonance states, and on the elastic and inelastic n + 7Li and p+ 7Be scattering.

References

[1] V. S. Vasilevsky. F. Arickx. J. Broeckhove. and T. P. Kovalenko.A microscopic three-cluster model with nuclear polarization applied to the resonances of 8Be and the reaction 6 3 4( ,)LipHeHe // Nucl. Phys. A.– 2009.– Vol. 824. – P. 37–57.
[2] A. V. Nesterov. V. S. Vasilevsky. and T. P. Kovalenko.Effect of cluster polarization on the spectrum of the 7Li nucleus and on the reaction 6 3 4(,)LinHHe // Phys. Atom. Nucl.– 2009.– P. 72. 1450–1464.
[3] A. V. Nesterov. V. S. Vasilevsky. and T. P. Kovalenko.Microscopic model of the radiative capture reactions with cluster polarizability. Application to 8Be and 7Li // Ukr. J. Phys.– 2011.– P. 56. 645–653.
[4] V. S. Vasilevsky. A. V. Nesterov. and T. P. Kovalenko.Three–cluster model of radiative capture reactions in seven-nucleon systems. Effects of cluster polarization. // Phys. Atom. Nucl. – 2012. – P. 75. 818–831.
[5] J. P. Mitchell. G. V. Rogachev. at el. Low-lying states in 8B.// Phys. Rev. C.– 2010.– Vol.82.– P 011601.
[6] J. P. Mitchell. G. V. Rogachev. at el.Structure of 8B from elastic and inelastic 7Be+p scattering // Phys. Rev. C. – 2013. – Vol. 87. – P. 054617.
[7] L. D. Faddeev and S. P. Merkuriev. Quantum Scattering Theory for Several Particle Systems. // Dordrecht. Boston. London: Kluwer Academic Publishers. – 1993.
[8] K. Wildermuth and Y. Tang.A unified theory of the nucleus. Braunschweig: Vieweg Verlag, 1977.
[9] D. R. Thompson. M. LeMere. and Y. C. Tang. Systematic investigation of scattering problems with the resonating-group method // Nucl. Phys. A. – 1977. – Vol. 286. – P. 53–66.
[10] I. Reichstein and Y. C. Tang. Study of N  system with the resonating-group method // Nucl. Phys. A.– 1970. – Vol. 158. – P. 529–545.
[11] A. Hasegawa and S. Nagata. Ground state of 8Li // Prog. Theor. Phys.– 1971.– Vol. 45. – P. 1786–1807.
[12] F. Tanabe. A. Tohsaki. and R. Tamagaki. αα scattering at intermediate energies // Prog. Theor. Phys.– 1975.– Vol. 53. – P. 677–691.
[13] D. R. Tilley. J. H. Kelley. at el. Energy levels of light nuclei А=8. 9. 10 // Nucl. Phys. A. – 2004. – Vol. 745. – P. 155–362.
[14] M. M. Obuti. T. Kobayashi. at el. Interaction cross section and interaction radius of the 8B nucleus // Nucl. Phys. A.– 1996.–Vol. 609. – P74–90.
[15] A. Csótó. Proton skin of 8B in a microscopic model// Phys. Lett. B.– 1993.– Vol. 315.– P. 24–28.
[16] D. Baye. P. Descouvemont. and N. K. Timofeyuk. Matter densities of 8B and 8Li in a microscopic cluster model and the proton-halo problem of 8B // Nucl. Phys. A. – 1994. – Vol 577. – P. 624–640.

Downloads

How to Cite

Vasilevsky, V. S., Takibayev, N. Z., & Duisenbay, A. D. (2017). Microscopic description of 8Li and 8B nuclei within three-cluster model. Physical Sciences and Technology, 3(1), 24–29. https://doi.org/10.26577/phst-2016-1-90

Issue

Section

Nuclear Physics and Related Techology