Abstract
Excitation functions are measured for complete-fusion and transfer reactions induced by the interaction of 6He and 6Li with 206Pb, 209Bi, and Pt. Data obtained for fusion reactions induced by 6He ions deviate from the predictions of the statistical model of compound-nucleus decay at projectile energies in the vicinity of the Coulomb barrier height. A strong enhancement of cross sections for fusion reactions induced by the interaction of 6He with target nuclei is observed. The cross sections for reactions of cluster transfer, neutron transfer from 6He, and deuteron transfer from 6Li at deep-subbarrier energies are also found to be enhanced. These results are discussed from the point of view of the effect of the cluster structure of nuclei on the interaction probability at energies in the vicinity of the Coulomb barrier height.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
L. F. Canto et al., Phys. Rep. 424, 1 (2006).
N. Keely et al., Prog. in Part. Nucl. Phys. 59, 579 (2007).
M. Dasgupta et al., Phys. Rev. C 66, 041602R (2002).
Yu. E. Penionzhkevich et al., Pis’ma Fiz. Élem. Chastits At. Yadra 3(6), 38 (2006) [Phys. Part. Nucl. Lett. 3, 362 (2006)].
V. I. Zagrebaev, Phys. Rev. C 67, 061601(R) (2003).
Ch. Beck et al., Preprint No. 07-008, IPHC (Strasbourg, 2007).
R. Raabe et al., Nature 431, 823 (2004).
J. J. Kolata et al., Phys. Rev. Lett. 81, 4580 (1998).
Yu. E. Penionzhkevich et al., Eur. Phys. J. A 31, 185 (2007).
R. Kalpakchieva et al., Yad. Fiz. 70, 649 (2007) [Phys. At. Nucl. 70, 619 (2007)].
N. K. Skobelev et al., Nucl. Instrum. Methods Phys. Res. B 227, 471 (2005).
Yu. A. Muzychka and B. I. Pustyl’nik,Yad. Fiz. 45, 90 (1987) [Sov. J. Nucl. Phys. 45, 57 (1987)].
W. J. Ramler et al., Phys. Rev. 114, 154 (1959).
M. Dasgupta et al., Phys. Rev. C 70, 024606 (2004).
F. Ditrói et al., Nucl. Instrum. Methods Phys. Res. B 243, 20 (2006).
Y. Sakuragi, Phys. Rev. C 35, 2161 (1987).
G. Baur et al., Phys. Rep. 111, 333 (1984).
A. Shrivastava et al., Phys. Lett. B 633, 463 (2006).
C. Signorini et al., Phys. Rev. C 67, 044607 (2003).
Yu. Ts. Oganessian and G. G. Gulbekian, in Proc. of the Intern. Conf. on Nuclear Physics, “Nuclear Shells-50 Years,” Dubna, Russia, 1999, Ed. by Yu. Ts. Oganessian and R. Kalpakchieva (World Sci., Singapore, 2000), p. 61.
A. R. Barnett and J. S. Lilley, Phys. Rev. C 9, 2010 (1974).
J. R. Oppenheimer and M. Phillips, Phys.Rev. 48, 500 (1935).
A. Bartlett et al., Phys. Rev. C 74, 015802 (2006).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © Yu.E. Penionzhkevich, 2009, published in Yadernaya Fizika, 2009, Vol. 72, No. 10, pp. 1674–1685.
Rights and permissions
About this article
Cite this article
Penionzhkevich, Y.E. Special features of nuclear reactions induced by loosely bound 6He and 6,7Li nuclei in the vicinity of the Coulomb barrier height. Phys. Atom. Nuclei 72, 1617–1628 (2009). https://doi.org/10.1134/S1063778809100020
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063778809100020