The high energy limit for the α-d and τ-t form factors in the 6Li nucleus and the problem of experimental investigation of the nodes of the corresponding wave functions

Kurdyumov, I.V.; Neudatchin, V. G.; Smirnov, Yu.F.; Korennoy, V.P.

doi:10.1016/0370-2693(72)90607-7

Cited by 29 publications

(2 citation statements)

References 24 publications

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“…The interaction V d− 6 He was set equal to U d− 10 Be except for the mass-dependent radius, R = r 0 A 1/3 . The 6 Li = α + d bound state wave function was generated in a Woods-Saxon potential with R = 1.85 fm and a = 0.71 fm [13] by assuming α + d clusters in a relative 2S state. The 6 He + α relative-motion wave functions were calculated with the potential taken from [14].…”

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confidence: 99%

The ⁶ He + ⁶ Li reactions and exotic states of ¹⁰ Be

Milin¹,

Aliotta²,

Cherubini³

et al. 1999

Europhys. Lett.

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The 6 He+ 6 Li elastic scattering and transfer reactions have been studied using a 17.0 MeV 6 He beam. The measurements show large cross-sections for α transfer reactions leading to some states at high excitations (6 ≤ Ex ≤ 11 MeV) in 10 Be. The results support suggestions that these states have a molecule-like structure and may belong to the same rotational band.Introduction. -The 6 He nucleus exhibits halo structure with two loosely bound neutrons and an α-particle core. One may expect that by adding an α-particle to this loose object a structure could be formed resembling the H 2 molecule. In this case the "covalent" bonding of two α-particles would be achieved by two neutrons. In accordance with the ideas of clustering in light nuclei [1, 2] the 10 Be states of this nature could be expected in the vicinity of the thresholds for 2α + 2n (8.39 MeV) and α + 6 He (7.41 MeV) decays (fig. 1). A possible candidate could be the second 0 + state at 6.18 MeV, which cannot be described by the shell model approach (see, e.g., [3][4][5]), but fits well into the three-cluster picture (α + α + 2 n) as discussed in [6,7]. Our results on the 7 Li + 7 Li reaction [8] have shown that the 10 Be state at 10.2 MeV decays into the α + 6 He channel (but not into n + 9 Be). We then speculated that this state may be the third, 4 + , member of a rotational band based on the band head state 0 + 2 at 6.18 MeV and the 2 + 3 state at 7.54 MeV. The small energy separation between them would then imply a large moment of inertia, i.e. they would be very extended objects. Von Oertzen [9] with his ideas on nuclear dimers independently suggested the existence of this band. However, his third member would be the 10.6 MeV state, which, according to our results, has a very weak (if any) α + 6 He branching but intense n + 9 Be decay.

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mentioning

confidence: 99%

The ⁶ He + ⁶ Li reactions and exotic states of ¹⁰ Be

Milin¹,

Aliotta²,

Cherubini³

et al. 1999

Europhys. Lett.

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“…In this analysis, the phenomenological a + 9 Be, 16 O and d + 9 Be, 16 O potentials with the wavefunctions for the a + d in 6 Li were folded. The wavefunction of relative motion for the alpha and deuteron clusters within 6 Li is taken to have,' 14 ! which takes into account the requirement for a shell model node ;…”

Section: Numerical Calculations and Resultsmentioning

confidence: 99%

Folding Cluster Model for ⁶ Li Scattering from ⁹ Be and ¹⁶ O

Farra

2000

Commun. Theor. Phys.

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The elastic scattering of 6Li from 9Be and 16O has been analyzed in terms of a phenomenological and microscopic potential. The real potential was generated from either a double-folding calculation or a single-folding model. A Woods–Saxon form was used for the imaginary potential. The double-folding analysis provides reasonably good fits to the experimental data and leads to a better description of the enhanced large angle cross sections than the phenomenological calculations.

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