Structure of large two-neutron halos in light exotic nuclei

Frederico, T.; Yamashita, M. T.; Tomio, Lauro

doi:10.1016/j.nuclphysa.2006.12.085

Cited by 3 publications

(7 citation statements)

References 29 publications

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“…Fig. 5(b) shows the comparison between the matter density distribution of 8 He, represented by the red line, and the matter density distribution of stable nuclei 4 He, represented by the blue line. It is clear from this figure that the red and blue curves are diverse.…”

Section: He Nucleusmentioning

confidence: 99%

“…The elastic electron scattering form factor 2BCDD's are shown in Fig. 6, the red curve represents form factor with oscillator size parameter (β=1.77fm ) (assumed to be the average of βc and βv), while the black filled circles curve represents the experimental data for stable nuclei 4 He which were taken from J. S. McCarthy et al [24]. When comparing the theoretical results with experimental data for stable nuclei ( 4 He) it was noted that they have the same behavior of first diffraction minimum, Where the first diffraction minimum for 8 He is located at ≈ 2.6 -1 and for 4 He at ≈ 3.1 -1 .…”

Section: He Nucleusmentioning

confidence: 99%

“…While the inclusion of the strong tensor force is one of the most basic nuclear forces, its firstorder impact on the shell structure has only recently been explained in exotic nuclei studies Depending on the occupation of specific orbits, the tensor force will alter the spin-orbit splitting [1]. T. Frederico et al [4] used zero-range interactions to study the structure of three-body halo nuclei produced by two neutrons and a core. Only the swave scattering lengths and two-neutron separation energy will fully parameterize the halo wave function.…”

Section: Introductionmentioning

confidence: 99%

“…(a) The comparison between Matter density distributions of 8 He with that of experimental data, (b) The comparison between Matter density distributions of8 He and stable4 He nuclei.…”

mentioning

confidence: 99%

“…Figure 6: Comparison between the calculated elastic form factors of8 He and the experimental data of stable4 He nuclei.…”

mentioning

confidence: 99%

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Matter Density Distributions, Root-mean Square Radii and Elastic Electron Scattering Form Factors of Some Exotic Nuclei (17B, 11Li, 8He)

Rahi

Flaiyh

2021

IJP

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The two-neutron halo-nuclei (17B, 11Li, 8He) was investigated using a two-body nucleon density distribution (2BNDD) with two frequency shell model (TFSM). The structure of valence two-neutron of 17B nucleus in a pure (1d5/2) state and in a pure (1p1/2) state for 11L and 8He nuclei. For our tested nucleus, an efficient (2BNDD's) operator for point nucleon system folded with two-body correlation operator's functions was used to investigate nuclear matter density distributions, root-mean square (rms) radii, and elastic electron scattering form factors. In the nucleon-nucleon forces the correlation took account of the effect for the strong tensor force (TC's). The wave functions of single particle harmonic oscillator are used with two different oscillator size parameters βc and βv, where the former is for the core (inner) orbits and the latter is for the valence (halo) orbits. The measured matter density distributions of these nuclei clearly showed long tail results. To investigate elastic electron scattering form factors the plane wave born approximation (PWBA) with two body nucleon density distribution (2BNDD's) was use.

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Section: He Nucleusmentioning

confidence: 99%

Section: He Nucleusmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…(a) The comparison between Matter density distributions of 8 He with that of experimental data, (b) The comparison between Matter density distributions of8 He and stable4 He nuclei.…”

mentioning

confidence: 99%

“…Figure 6: Comparison between the calculated elastic form factors of8 He and the experimental data of stable4 He nuclei.…”

mentioning

confidence: 99%

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Matter Density Distributions, Root-mean Square Radii and Elastic Electron Scattering Form Factors of Some Exotic Nuclei (17B, 11Li, 8He)

Rahi

Flaiyh

2021

IJP

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An efficient prescription to find the eigenfunctions of point interactions Hamiltonians

Coutinho

Amaku

2009

Eur. J. Phys.

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Fast calibration methods using cosmic rays for a neutron detection array

Yang

Xiao

et al. 2012

Chinese Phys. C

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An overall irradiation and calibration technique was introduced and applied to a test scintillation detector array. An integral conversion method was used to reduce the nonlinearity of the time difference spectrum, and to improve the position determination especially for positions close to the two ends of a long scintillation bar. An overall position resolution of about 3.0 cm (FWHM) was extracted from the residual analysis method and verified by a direct measurement. Energy calibration was also realized by selecting cosmic rays at different incident angles. The bulk light attenuation lengths for the four test bars were also determined. It is demonstrated that these methods are especially efficient for calibrating large and complex detector arrays.

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Structure of large two-neutron halos in light exotic nuclei

Cited by 3 publications

References 29 publications

Matter Density Distributions, Root-mean Square Radii and Elastic Electron Scattering Form Factors of Some Exotic Nuclei (17B, 11Li, 8He)

Matter Density Distributions, Root-mean Square Radii and Elastic Electron Scattering Form Factors of Some Exotic Nuclei (17B, 11Li, 8He)

An efficient prescription to find the eigenfunctions of point interactions Hamiltonians

Fast calibration methods using cosmic rays for a neutron detection array

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