Excitation of 14C by 45 MeV 11B ions

• Published in: Nuclear physics. A Vol. 753; no. 1; pp. 13 - 28
• Main Authors: Mezhevych, S.Yu, Rudchik, A.T., Rusek, K., Budzanowski, A., Czech, B., Choiński, J., Głowacka, L., Kliczewski, S., Koshchy, E.I., Kyryanchuk, V.M., Mokhnach, A.V., Rudchik, A.A., Sakuta, S.B., Siudak, R., Skwirczyńska, I., Szczurek, A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01-05-2005
• Subjects: 11B, 14C; 14C levels deduced; 14C( 11B, 11B); Coupled-channels analysis; deduced; deformation parameters; formula omitted; measured; Nuclear reactions; optical model parameters; single-particle structure; deduced; measured; 14C levels deduced; Coupled-channels analysis; Nuclear reactions
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2005.02.119

Angular distributions of the
11B +
14C elastic scattering and inelastic scattering for transitions to a few excited states of
14C were measured at
E
lab(
11B) = 45 MeV over the full angular range. The data were analyzed within the coupled-channels method. Contributions from one- and two-step transfer reactions were found to be negligible. Quadrupole deformation of the
14C ground state was deduced to be negative, the deformation of the 8.318 MeV (2
+) state was found to be similar to that of the ground state. The single particle model calculations reproduced the experimental data for transition to the 6.094 (1
−) state of
14C much better than the collective model analysis. The fit to this experimental data set was improved when we took into account reorientation of
11B in its ground state and considerably enlarged the radius of the potential binding the neutron to the
13C core. The same procedure was tested against the experimental data for transition to the 1/2
+ (3.089 MeV) excited state of
13C, populated in the
11B +
13C scattering at
E
lab(
11B) = 45 MeV, with the similar effect.