Elastic and inelastic scattering of 15N ions by 7Li at 81 MeV versus that of 14N ions by 7Li at 80 and 110 MeV

被引:3
|
作者
Rudchik, A. T. [1 ]
Rudchik, A. A. [1 ]
Muravynets, L. M. [1 ]
Kemper, K. W. [2 ]
Rusek, K. [3 ]
Piasecki, E. [3 ]
Trzcinska, A. [3 ]
Koshchy, E. I. [4 ]
Pirnak, Val. M. [1 ]
Ponkratenko, O. A. [1 ]
Strojek, I. [5 ]
Stolarz, A. [3 ]
Herashchenko, O. V. [1 ]
Stepanenko, Yu. M. [1 ]
Plujko, V. A. [6 ]
Sakuta, S. B. [7 ]
Siudak, R. [8 ]
Szczurek, A. [8 ]
机构
[1] Ukrainian Acad Sci, Inst Nucl Res, Prospect Nauki 47, UA-03680 Kiev, Ukraine
[2] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA
[3] Warsaw Univ, Heavy Ion Lab, Ul L Pasteura 5A, PL-02093 Warsaw, Poland
[4] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA
[5] Natl Ctr Nucl Res, Ul Hoza 69, PL-00681 Warsaw, Poland
[6] Taras Shevchenko Natl Univ, Ul Volodymyrska 64, UA-01033 Kiev, Ukraine
[7] Russian Res Ctr, Kurchatov Inst, Kurchatov Sq 1, Moscow 123182, Russia
[8] Polish Acad Sci, H Niewodniczanski Inst Nucl Phys, Ul Radzikowskiego 152, PL-31342 Krakow, Poland
关键词
Nuclear reactions Li-7(N-15; N-15); E=81; MeV; Measured particle spectra; sigma; (theta); Deduced reaction mechanism features and Woods Saxon potential parameters of the Li-7+N-15 potential and deformation parameters of Li-7 and N-15 using coupled-reaction-channels analysis; DIFFERENTIAL CROSS-SECTIONS; NUCLEI; POTENTIALS; TARGET;
D O I
10.1016/j.nuclphysa.2016.12.007
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Angular distributions of the elastic and inelastic scattering of N-15 ions by Li-7 nuclei were measured at the energy E-lab (N-15) = 81 MeV (E-c.m. = 25.77 MeV). The data were analyzed within the coupled reaction-channels method. The elastic and inelastic scattering, spin reorientations of Li-7 as well as the more important one- and two-step transfer reactions were included in the channels -coupling scheme. The parameters of Li-7 N-15 optical potential of Woods Saxon form as well as deformation parameters of these nuclei were deduced. The analysis showed that the forward angle elastic scattering is dominated by pure potential scattering whereas the middle and large angle scattering gets a contribution from the ground state reorientation of Li-7. Contributions from particle transfers were negligible for the present scattering system. The Li-7 + N-15 elastic scattering was compared with that of Li-7 N-14 at the energies E-lab (N-14) = 80 MeV and 110 MeV. Different contributions to the elastic scatterings from other nuclear processes are shown to be responsible for the isotopic difference observed in the large angle scattering. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:234 / 245
页数:12
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