Data · dataset · 2025
Effects of neutron excess in deformed $\Lambda$ hypernuclei
Listed in ScienceDB
This dataset is generated from deformation-constrained Skyrme–Hartree–Fock (SHF) calculations in axially symmetric coordinates, aiming to study the structural evolution of $\Lambda$ hypernuclei under various deformation conditions.
Description
The calculations were performed using a self-developed Fortran program running on a Linux system, with large-scale batch computations carried out on a high-performance computing platform.
A quadrupole deformation constraint ($\beta_2$) was introduced in the calculations, and the energy surfaces and related physical quantities were obtained through point-by-point scanning. The adopted Skyrme interaction parameter set includes central and spin–orbit terms, and all results were output after convergence of both the single-particle energies and the total energy. The dataset covers a series of $\Lambda$ hypernuclei with mass numbers ranging from $A = 12$ to $A = 208$.
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For each nucleus, deformation-constrained calculations were performed over the range $\beta_2 = -0.8$ to $+1.0$ with an interval of $\delta\beta_2 = 0.02$. In terms of spatial resolution, the calculations were carried out in cylindrical coordinates with a mesh spacing of $\Delta r = 0.1,\mathrm{fm}$, and the box radius was set to $15$–$20,\mathrm{fm}$ depending on the size of the nucleus. The main data file, HFe59.dat, contains the output results for all computed points.
Each row in the table corresponds to a specific combination of a nucleus and a deformation parameter $\beta_2$. The column labels include:inbeta2: Input quadrupole deformation $\beta_2$outbeta2: Converged quadrupole deformation $\beta_2$ after iterationq2_sum: Total quadrupole moment of the $\Lambda$ hypernucleus (or normal nucleus)Hf-e: Binding energy of the $\Lambda$ hypernucleus (or normal nucleus), in MeV<r_p>: Root-mean-square radius of the proton, in fm<r_n>: Root-mean-square radius of the neutron, in fmSome extreme deformation values, particularly near $\beta_2 \approx \pm 0.8$, may lead to non-convergent or unphysical solutions.
These points have been removed during data processing. As a result, there are no NaN entries in the final dataset. The main sources of numerical error stem from mesh discretization and the convergence threshold used in the self-consistent iteration.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.j00186.00741 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Tabular 65%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.j00186.00741 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[modality].local:modality:tabular | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (65%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |