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Full text (ua) Mechanisms of the 12C(11B,15N)8Be reaction
А. А. Rudchik1, V. K. Chernievsky1, А. Т. Rudchik1, A. Budzanowski3, L. Glovacka5, L. Zemlo6, S. Kliczewski3, E. І. Koshchy2, О. А. Ponkratenko1, О. А. Momotyuk1, A. V. Mokhnach1, Val. М. Pirnak1, К. Rusek4, І. Skwirszynska3, R. Siudak3, B. Czech3, А. Szczurek3
1Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2Kharkiv National University, Kharkiv, Ukraine
3H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland
4Soltan Institute for Nuclear Studies, Warsaw, Poland
5Institute of Applied Physics of the Military University of Technology, Warsaw, Poland
6Heavy Ion Laboratory, Warsaw University, Warsaw, Poland
Abstract: Angular distributions of the 12C(11B, 15N)8Be reaction were measured at the energy Elab(11B) = 49 MeV for the transitions to the ground and 2.94 MeV (2+) excited state of 8Be and to the ground and 5.270 MeV (5/2+) + 5.299 MeV (1/2+), 6.324 MeV (3/2-), 7.155 MeV (5/2+) + 7.301 MeV (3/2+), 7.567 MeV (7/2+) excited states of 15N. The data were analyzed by the coupled-reaction-channel method. The elastic, inelastic scattering and one- and two-step transfers were included into the coupling scheme. The data of the 12C(11B, 8Be)15N reaction at Ec.m. = 9.4 - 17.8 MeV known from the literature, were also included in the analysis. It was found that in the 12C(11B, 15N)8Be reaction the α- and t-cluster transfers dominate at θc.m. < 90° and θc.m. > 90°, respectively. The optical model parameters for the 15N + 8Be interaction and their energy dependence were deduced.
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