Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

Full text (ua)

O. I. Davidovskaya, V. Yu. Denisov, V. O. Nesterov

Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Abstract: Elastic scattering ¹⁶О + ¹²C at energies 132 and 169 MeV, ¹²C + ¹²C at energies 139.5 and 158.8 MeV and ¹⁶O + ¹⁶О at energies 124 and 145 MeV are analyzed in the framework of optical model with repulsive core nucleus-nucleus potential. Elastic scattering cross sections are evaluated in the approaches with and without core. It is shown that core leads to increasing elastic scattering cross sections at backward angles. Near- and far-sides components of elastic scattering amplitude decomposition and effect of core on these components are studied.

Keywords: nucleus-nucleus potential, repulsive core, elastic scattering cross section, near- and far-sides components of scattering amplitude.

1. Давидовська О. І., Денисов В. Ю., Нестеров В. О. Ядерно-ядерний потенціал із відштовхувальним кором і пружне розсіяння. Частина 1. Потенціал ядерно-ядерної взаємодіїю Ядерна фізика та енергетика 11 (2010) 25. https://jnpae.kinr.kyiv.ua/11.1/Articles_PDF/jnpae-2010-11-0025-Davidovskaya_part1.pdf

2. Hodgson P. E. Nuclear heavy-ion reactions (Oxford: Clarendon Press, 1978).

3. Satchler G. R. Direct Nuclear Reactions (Oxford: Oxford University, 1983).

4. Frobrich P., Lipperheide R. Theory of Nuclear Reactions (Oxford: Clarendon Press, 1996). https://doi.org/10.1093/oso/9780198537830.001.0001

5. Denisov V. Yu., Davidovskaya O. I. Elastic scattering of heavy nuclei and nucleus-nucleus potential with repulsive core. Ядерная физика 73 (2010) 429.

6. Давидовская О. И. Денисов В. Ю. Пружне розсіяння ¹⁶O + ¹⁶O і ядерно-ядерний потенціал із відштовхувальним кором. Укр. фіз. журнал (2010).

7. Denisov V. Yu., Davidovskaya O. I. Repulsive core potential and elastic heavy-ion collisions. Укр. фіз. журнал 54 (2009) 669.

8. Денисов В. Ю., Давидовская О. И. Упругое рассеяние тяжелых ионов и ядерно-ядерный потенциал с отталкивающим кором. Изв. РАН. Сер. физ. 74 (2010) 611.

9. Denisov V. Yu. Interaction potential between heavy ions. Phys. Lett. B 526 (2002) 315. https://doi.org/10.1016/S0370-2693(01)01513-1

10. Blocki J. et al. Proximity forces. Ann. Phys. 105 (1977) 427. https://doi.org/10.1016/0003-4916(77)90249-4

11. Ogloblin A. A., Khoa Dao T., Kondo Y. et al. Pronounced Airy structure in elastic ¹⁶O + ¹²C scattering at E_lab = 132 MeV. Phys. Rev. C 57 (1998) 1797. https://doi.org/10.1103/PhysRevC.57.1797

12. Ogloblin A. A., Glukhov Yu. A., Trzaska W. H. et al. New measurement of refractive, elastic ¹⁶О + ¹²C scattering at 132, 170, 200, 230 and 260 MeV incident energies. Phys. Rev. C 62 (2000) 044601. https://doi.org/10.1103/PhysRevC.62.044601

13. Khoa Dao T., W. von Oertzen, Bohlen H. G., Nuoffer F. Study of diffractive and refractive structure in elastic ¹⁶O + ¹⁶O scattering at incident energies ranging from 124 to 1120 MeV. Nucl. Phys. A 672 (2000) 387. https://doi.org/10.1016/S0375-9474(99)00856-8

14. Kubono S. et al. 3α-breakup induced dynamical polarization potential of ¹²C at E/A ⩾ 10 MeV. Phys. Lett. B 163 (1985) 75. https://doi.org/10.1016/0370-2693(85)90195-9

15. Brandan М. Е., Satchler G. R. The interaction between light heavy-ions and what it tell us. Phys. Rep. 285 (1997) 143; https://doi.org/10.1016/S0370-1573(96)00048-8

16. Fuller R. C. Qualitative behavior of heavy-ion elastic scattering angular distributions. Phys. Rev. C 12 (1975) 1561. https://doi.org/10.1103/PhysRevC.12.1561

17. Бережной Ю.А., Пилипенко В.В. Анализ рассеяния легких ядер ядрами в S-матричном подходе. Изв. РАН. Сер. физ. 59 (1995) 197.