Structure and Reactions of Light Exotic Nuclei

Suzuki, Yasuyuki; Yabana, Kazuhiro; Lovas, R. G.; Varga, K.

doi:10.4324/9780203168271

Cited by 110 publications

(191 citation statements)

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“…Both the eikonal CDCC (E-CDCC) [15,16] and the dynamical eikonal approximation (DEA) [17,18] are such eikonal models. Note that these models differ from the usual eikonal approximation in that they do not include the subsequent adiabatic approximation, in which the internal dynamics of the projectile is neglected [19].…”

Section: Introductionmentioning

confidence: 99%

Analysis of a low-energy correction to the eikonal approximation

2014

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Extensions of the eikonal approximation to low energy (20 MeV/nucleon typically) are studied. The relation between the dynamical eikonal approximation (DEA) and the continuum-discretized coupled-channels method with the eikonal approximation (E-CDCC) is discussed. When Coulomb interaction is artificially turned off, DEA and E-CDCC are shown to give the same breakup cross section, within 3% error, of 15 C on 208 Pb at 20 MeV/nucleon. When the Coulomb interaction is included, the difference is appreciable and none of these models agrees with full CDCC calculations. An empirical correction significantly reduces this difference. In addition, E-CDCC has a convergence problem. By including a quantum-mechanical correction to E-CDCC for lower partial waves between 15 C and 208 Pb, this problem is resolved and the result perfectly reproduces full CDCC calculations at a lower computational cost.

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Section: Introductionmentioning

confidence: 99%

Analysis of a low-energy correction to the eikonal approximation

2014

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“…B.5 Many-particle correlation function A many-particle correlation function is useful to visualize the structure of a system [6,21,40,41,26]. The function is defined by the matrix element of the product of n δ-functions (n ≤ N −1), e.g.,…”

Section: B4 Potentials Of Gaussian Radial Formmentioning

confidence: 99%

Global-vector representation of the angular motion of few-particle systems II

et al. 2008

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Abstract. The angular motion of a few-body system is described with global vectors which depend on the positions of the particles. The previous study using a single global vector is extended to make it possible to describe both natural and unnatural parity states. Numerical examples include three-and four-nucleon systems interacting via nucleon-nucleon potentials of AV8 type and a 3α system with a nonlocal αα potential. The results using the explicitly correlated Gaussian basis with the global vectors are shown to be in good agreement with those of other methods. A unique role of the unnatural parity component, caused by the tensor force, is clarified in the 0 − 1 state of 4 He. Twoparticle correlation function is calculated in the coordinate and momentum spaces to show different characteristics of the interactions employed.

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“…For reactions in medium and high incident energies, the Glauber and the eikonal theories have been successful [2,3,4,5]. In these theories, the wave function of the halo neutron in the projectile is frozen during the reaction.…”

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confidence: 99%

Suppressed fusion cross section for neutron halo nuclei

et al. 2006

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Fusion reactions of neutron-halo nuclei are investigated theoretically with a three-body model.The time-dependent wave-packet method is used to solve the three-body Schrödinger equation.The halo neutron behaves as a spectator during the Coulomb dissociation process of the projectile.The fusion cross sections of 11 Be -209 Bi and 6 He -238 U are calculated and are compared with measurements. Our calculation indicates that the fusion cross section is slightly hindered by the presence of weakly bound neutrons. PACS numbers: 25.60.Pj, 25.70.Mn,

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Structure and Reactions of Light Exotic Nuclei

Cited by 110 publications

References 0 publications

Analysis of a low-energy correction to the eikonal approximation

Analysis of a low-energy correction to the eikonal approximation

Global-vector representation of the angular motion of few-particle systems II

Suppressed fusion cross section for neutron halo nuclei

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