The importance of indirect transitions on (p, t) reactions on deformed nuclei

Ascuitto, R.J.; Glendenning, Norman K.; Sørensen, Bent

doi:10.1016/0375-9474(72)90931-1

Cited by 67 publications

(43 citation statements)

References 16 publications

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“…This long-range density leads to specific properties of halo nuclei, such as an anomalously large radius [2]. A typical example is the 11 Li nucleus, which is considered as a 9 Li core surrounded by two neutrons with a separation energy of 0.378 MeV [3]. The 11 Li experimental radius is 3.16 ± 0.11 fm [4], which is much larger than the 9 Li radius (2.43 fm [5]).…”

Section: Introductionmentioning

confidence: 99%

“…The 11 Li nucleus has been studied in many experimental and theoretical works (see, for example, Ref. [6] and references therein).…”

Section: Introductionmentioning

confidence: 99%

“…Consequently, the experimental information is generally deduced from reaction models. Typical examples are 11 Li elastic scattering on heavy targets [7] or on protons [8]. Breakup data are also widely used to assess 11 Li models [9].…”

Section: Introductionmentioning

confidence: 99%

“…Typical examples are 11 Li elastic scattering on heavy targets [7] or on protons [8]. Breakup data are also widely used to assess 11 Li models [9].…”

Section: Introductionmentioning

confidence: 99%

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Halo effects in the Li11(p,t)Li9 reaction

Descouvemont

2021

Phys. Rev. C

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I investigate the 11 Li(p, t) 9 Li two-neutron transfer reaction at E lab = 33 MeV within the Distorted Wave Born Approximation (DWBA). The 11 Li and 3 H nuclei are described in the hyperspherical formalism, as 9 Li + n + n and p + n + n configurations. The calculation of the cross section is shown to be much more complicated than in one-neutron transfer reaction, owing to the threebody structure of 11 Li. The 11 Li + p and 9 Li + t scattering wave functions are determined with the Continuum Discretized Coupled Channel (CDCC) method. Approximations derived from equivalent local potentials are used to compute the transfer cross section at the DWBA. The model reproduces experimental data reasonably well, considering that there is no adjustable parameter. I show that the cross section is fairly sensitive to the long range part of the 11 Li wave function, and therefore to its halo structure.

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Section: Introductionmentioning

confidence: 99%

“…The 11 Li nucleus has been studied in many experimental and theoretical works (see, for example, Ref. [6] and references therein).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Typical examples are 11 Li elastic scattering on heavy targets [7] or on protons [8]. Breakup data are also widely used to assess 11 Li models [9].…”

Section: Introductionmentioning

confidence: 99%

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Halo effects in the Li11(p,t)Li9 reaction

Descouvemont

2021

Phys. Rev. C

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“…The DWBA calculations for the 2 + and 4 + members of the gs rotational band are in poor agreement with the experimental angular distributions because of coupled-channels effects. However CCBA calcula-tions for these transitions with the computer code CHUCK [7], in which inelastic channels were included up to the 4 + state of the gs rotational band in both 156Gd and 158Gd and with the same di-neutron cluster form factors as in our DWBA calculations, have A better description for these angular distributions can be obtained [10] in a coupled-channels scheme using form factors obtained following the formalism described by Ascuitto et al [ 10] for the generation of form factors for (p, t) transitions between collective bands in deformed nuclei. Such descriptions are being investigated and will be published elsewhere.…”

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confidence: 99%