<p>The structures of even–even Gd and Dy isotopes around <InlineEquation ID="IEq4"> <EquationSource Format="TEX">$N=100$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>N</mi> <mo>=</mo> <mn>100</mn> </mrow> </math></EquationSource> </InlineEquation> were investigated using a fully self-consistent microscopic model. The systematics of the exited <InlineEquation ID="IEq5"> <EquationSource Format="TEX">$2_{1}^{+}$</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mn>2</mn> <mrow> <mn>1</mn> </mrow> <mo>+</mo> </msubsup> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq6"> <EquationSource Format="TEX">$4_{1}^{+}$</EquationSource> <EquationSource Format="MATHML"><math> <msubsup> <mn>4</mn> <mrow> <mn>1</mn> </mrow> <mo>+</mo> </msubsup> </math></EquationSource> </InlineEquation> energies reveal a peak-like structure at <InlineEquation ID="IEq7"> <EquationSource Format="TEX">$N=100$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>N</mi> <mo>=</mo> <mn>100</mn> </mrow> </math></EquationSource> </InlineEquation> along the Gd (<InlineEquation ID="IEq8"> <EquationSource Format="TEX">$Z=64$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>Z</mi> <mo>=</mo> <mn>64</mn> </mrow> </math></EquationSource> </InlineEquation>) and Dy (<InlineEquation ID="IEq9"> <EquationSource Format="TEX">$Z=66$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>Z</mi> <mo>=</mo> <mn>66</mn> </mrow> </math></EquationSource> </InlineEquation>) isotopic chains. This supports the evidence for a subshell gap near <InlineEquation ID="IEq10"> <EquationSource Format="TEX">$N=100$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>N</mi> <mo>=</mo> <mn>100</mn> </mrow> </math></EquationSource> </InlineEquation>. The nuclear structure properties studied are important to understand the <InlineEquation ID="IEq11"> <EquationSource Format="TEX">$r$</EquationSource> <EquationSource Format="MATHML"><math> <mi>r</mi> </math></EquationSource> </InlineEquation>-process elemental abundance peak at <InlineEquation ID="IEq12"> <EquationSource Format="TEX">$A\sim 160$</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mi>A</mi> <mo>∼</mo> <mn>160</mn> </mrow> </math></EquationSource> </InlineEquation>.</p>

Deformed shell gap near $N\sim 100$ for Gd and Dy nuclei

期刊论文
发表日期：

2026年1月23日

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S. K. Ghorui,
A. Ghosh

摘要

The structures of even–even Gd and Dy isotopes around $N=100$ $N = 100$ were investigated using a fully self-consistent microscopic model. The systematics of the exited $2_{1}^{+}$ $2_{1}^{+}$ and $4_{1}^{+}$ $4_{1}^{+}$ energies reveal a peak-like structure at $N=100$ $N = 100$ along the Gd ( $Z=64$ $Z = 64$ ) and Dy ( $Z=66$ $Z = 66$ ) isotopic chains. This supports the evidence for a subshell gap near $N=100$ $N = 100$ . The nuclear structure properties studied are important to understand the $r$ $r$ -process elemental abundance peak at $A\sim 160$ $A \sim 160$ .

Deformed shell gap near \(N\sim 100\) for Gd and Dy nuclei

摘要