Abstract
Experimental results from measuring the energy dependences of cross sections of fusion and transfer reactions for 6Li beams and Pt targets are presented. The experiments were performed using the MSP-144 magnetic analyzer; stacks of platinum foils were installed at the focal plane of this analyzer. In the energy range 22.5–42.5 MeV, the energy resolution of the beam hitting the target stack was not worse than 0.25 MeV and that of the transmitted beam was not worse than 0.40 MeV. The yields of products of neutron and deuteron transfer reaction on target nuclei were measured using the γ activity induced in the platinum targets. Thus, excitation functions for transfer reactions were obtained in a wide energy range, including near the Coulomb barrier. It was shown that the basic reaction channel is the deuteron capture from 6Li. In this case, the maximum of the excitation function for 6Li breakup and subsequent deuteron capture lies near the Coulomb barrier of the reaction.
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References
D. R. Tilley et al., “Energy Levels of Light Nuclei A = 5, 6, 7,” Nucl. Phys. A 708, 3–163 (2002).
Yu. E. Penionzhkevich et al., “Excitation Functions of Fusion Reactions and Neutron Transfer in the Interaction of 6He with 197Au and 206Pb,” Eur. Phys. J. A 31(2), 185–194 (2007).
A. Shrivastava et al., “Evidence for Transfer Followed by Breakup in 7Li + 65Cu,” Phys. Lett. B 633, 463–468 (2006).
Li Zhihong et al., “First Observation of Neutron-Proton Halo Structure for the 3.563 MeV 0+ State in 6Li Via 1H(6He,6Li)n Reaction,” Phys. Lett. B 527, 50–54 (2002).
R. Kalpakchieva et al., “Momentum Distribution of the 4He Nuclei from the 6He and 6Li Breakup,” Yad. Fiz. 70(4), 649–655 (2007) [Phys. At. Nucl. 70, 619 (2007)].
J. Frána, “Program DEIMOS32 for Gamma-Ray Spectra Evaluation,” J. Radioanal. Nucl. Chem. 257, 583–587 (2003).
I.-M. Ladenbauer, I. L. Preiss, and C. E. Anderson, “Excitation Functions for Lithium-6 Induced Reactions on Aluminum-27,” Phys. Rev. 123, 1368–1372 (1961).
C. Signorini et al., “Exclusive Breakup of 6Li by 208Pb at Coulomb Barrier Energies,” Phys. Rev. C 67, 044607 (2003).
F. Tárkányi et al., “Cross Sections for Production of the Therapeutic Radioisotopes 198Au and 199Au in Proton and Deuteron Induced Reactions on 198Pt,” Radiochim. Acta 92, 223–228 (2004).
F. Ditrói et al., “Excitation Functions of Long Lived Products in Deuteron Induced Nuclear Reactions on Platinum up to 40 MeV,” Nucl. Instrum. Methods Phys. Res. B 243, 20–27 (2006).
Y. Sakuragi, “Energy and Target Dependence of Projectile Breakup Effect in Elastic Scattering of 6Li,” Phys. Rev. C 35, 2161–2174 (1987).
G. Baur et al., “Fragmentation Processes in Nuclear Reactions,” Phys. Rep. 111, 333–371 (1984).
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Original Russian Text © N.K. Skobelev, N.A. Demekhina, R. Kalpakchieva, A.A. Kulko, S.M. Lukyanov, Yu.A. Muzychka, Yu.E. Penionzhkevich, T.V. Chuvilskaya, 2009, published in Pis’ma v Zhurnal Fizika Elementarnykh Chastits i Atomnogo Yadra, 2009, No. 3 (150), pp. 342–353.
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Skobelev, N.K., Demekhina, N.A., Kalpakchieva, R. et al. The excitation functions of complete and incomplete fusion reactions of 6Li with Pt nuclei. Phys. Part. Nuclei Lett. 6, 208–215 (2009). https://doi.org/10.1134/S1547477109030042
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DOI: https://doi.org/10.1134/S1547477109030042