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Matter radii of light halo nuclei

J. S. Al-Khalili·J. A. Tostevin
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Abstract

We re-examine the matter radii of diffuse halo nuclei, as deduced from reaction cross section measurements at high energy. Careful consideration is given to the intrinsic few-body structure of these projectiles and the adiabatic nature of the projectile-target interaction. Using $^{11}$Li, $^{11}$Be and $^{8}$B as examples we show that data require significantly larger matter radii than previously reported. The revised value for $^{11}$Li of 3.55 fm is consistent with three-body models with significant $1s$-intruder state components, which reproduce experimental $^{9}$Li momentum distributions following $^{11}$Li breakup, but were hitherto thought to be at variance with cross section data.

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J. S. Al-Khalili, J. A. Tostevin. 1996-04-23. Matter radii of light halo nuclei. https://doi.org/10.1103/physrevlett.76.3903

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