Angular correlations from 6Li break-up near the Coulomb barrier of 118Sn and 208Pb

doi:10.1016/0375-9474(77)90140-3

Nuclear Physics A

Volume 288, Issue 2, 26 September 1977, Pages 351-364

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Abstract

Absolute coincidence cross sections for three-particle final states have been measured inplane in the ⁶Li + ¹¹⁸Sn and ⁶Li +²⁰⁸Pb reactions at incident energies of 22.2 and 23.0 MeV, respectively. Most strongly populated is the α + d branch, proceeding sequentially through the first excited state (E_x = 2.18 MeV, J^π = 3⁺) of ⁶Li. The angular distributions are fitted by DWBA calculations including Coulomb interaction in the excitation of the projectile. The main competing reaction channels above and at the Coulomb barrier (¹¹⁸Sn: E/E_c ≈ 1.3; ²⁰⁸Pb: E/E_c ≈ 0.9) are: neutron transfer (⁶Li, αp) and the non-sequential α + d break-up of ⁶Li. The latter spectra are consistent with a quasi-free break-up mechanism. No ³He or tritons have been found in the coincidence spectra, as well as no evidence for a three-particle dissociation of ⁶Li into α + p + n.

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^☆: Work supported in part by the Bundesministerium für Forschung und Technologie.

^††: Present address: Nuclear Structure Research Laboratory, University of Rochester, Rochester, NY 14627, USA.

^†††: Permanent address: Institute für Kernphysik, Universität Frankfurt/M., D-6000 Frankfurt, Germany.

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Nuclear Physics A

Abstract

References (15)

Nucl. Phys.

Nucl. Phys

Phys. Lett.

Nucl. Phys.

Phys. Rev.

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Reaction mechanisms in the <sup>6</sup>Li +<sup> 59</sup>Co system

What can one learn about lithium breakup from the fission reaction of <sup>232</sup>Th(<sup>6</sup>Li, f) at energies around the Coulomb barrier?

Angular correlations from 6Li break-up near the Coulomb barrier of 118Sn and 208Pb☆

Abstract

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Angular correlations from ⁶Li break-up near the Coulomb barrier of ¹¹⁸Sn and ²⁰⁸Pb☆