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In a decade-and-a-half old experiment, Raabe et al.(Nature 431 (2004) 823),had studied fusion of an incoming beam of halo nucleus $^{6}He$ with the targetnucleus $^{238}U$. We extract a new interpretation of the experiment, differentfrom the one that has been inferred so far. We show that their experiment isactually able to discriminate between the structures of the target nucleus(behaving as standard nucleus with density distribution described withcanonical RMS radius r = $r_0 A^{\frac{1}{3}}$ with $r_0$ = 1.2 fm), and the{\bf "core"} of the halo nucleus, which surprisingly, does not follow thestandard density distribution with the above RMS radius. In fact the core hasthe structure of a tennis-ball (bubble) like nucleus, with a "hole" at thecentre of the density distribution. This novel interpretation of the fusionexperiment provides an unambigous support to an almost two decades old model(Abbas, Mod. Phys. Lett. A 16 (2001) 755), of the halo nuclei. This QuantumChromodyanamics based model, succeeds in identifyng all known halo nuclei andmakes clear-cut and unique predictions for new and heavier halo nuclei. Thismodel supports the existence of tennis-ball (bubble) like core, of even thegiant-neutron halo nuclei. This should prove beneficial to theexperimentalists, to go forward more confidently, in their study of exoticnuclei.

Fusion of halo nucleus $^{6}He$ on $^{238}U$: evidence for tennis-ball (bubble) structure of the core of the halo (even the giant-halo) nucleus