Nuclear Physics and Atomic Energy


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, Russian
  Periodicity: 4 times per year

  Open access peer reviewed journal


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Nucl. Phys. At. Energy 2017, volume 18, issue 3, pages 238-244.
Section: Nuclear Physics.
Received: 25.05.2017; Accepted: 12.10.2017; Published online: .12.2017.
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7Li(15N,14C)8Be reaction and 13,14C + 8Be nuclei interactions

. . Rudchik1,*, . . Rudchik1, L. M. Muravynets1, K. W. Kemper2, . Rusek3, E. . Koshchy4, E. Piasecki3, A. Trczinska3, Val. . Pirnak1, . . Ponkratenko1, V. . Plujko5, I. Strojek6, A. Stolarz3, S. B. Sakuta7, . P. Ilyin1, Yu. M. Stepanenko1, V. V. Uleshchenko1, Yu. O. Shyrma1

1 Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2 Physics Department, Florida State University, Tallahassee, USA
3 Heavy Ion Laboratory of Warsaw University, Warsaw, Poland
4 Cyclotron Institute, Texas A&M University, USA
5 Taras Shevchenko National University, Kyiv, Ukraine
6 National Institute for Nuclear Research, Warsaw, Poland
7 National Research Center "Kurchatov Institute", Moscow, Russia


*Corresponding author. E-mail address: rudchik@kinr.kiev.ua

Abstract: Angular distributions of the 7Li(15N,14C)8Be reaction were measured at the energy Elab(15N) = 81 MeV. The reaction data were analyzed within coupled-reaction-channels (CRC) method. The 7Li + 15N elastic and inelastic scattering and the more important one- and two-step transfers of this reaction were included in the channels-coupling scheme. Previously the 7Li + 15N optical potential parameters were deduced from the CRC analysis of the 7Li + 15N elastic scattering data at Elab(15N) = 81 MeV. The spectroscopic amplitudes needed for CRC-calculations of the reaction were calculated within the translational invariant shell model (TISM). CRC analysis of the 7Li(15N,14C) reaction data showed the p transfer dominants in this reaction. The parameters of the 14C + 8Be optical potential were deduced from CRC analysis of the reaction data and were compared with that of the 13C + 8Be potential parameters deduced previously from CRC analysis of 9Be(12C,13C)8Be reaction data. The isotopic differences are observed.

Keywords: heavy-ion scattering, optical model, coupled-reaction-channels method, spectroscopic amplitudes, optical potentials, reaction mechanisms.

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