<p>The fusion dynamics of <InlineEquation ID="IEq9"> <EquationSource Format="TEX">\(^{6}\hbox {Li}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mmultiscripts> <mrow /> <mrow /> <mn>6</mn> </mmultiscripts> <mtext>Li</mtext> </mrow> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq10"> <EquationSource Format="TEX">\(^{7}\hbox {Li}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mmultiscripts> <mrow /> <mrow /> <mn>7</mn> </mmultiscripts> <mtext>Li</mtext> </mrow> </math></EquationSource> </InlineEquation> projectiles incident on the <InlineEquation ID="IEq11"> <EquationSource Format="TEX">\(^{13}\hbox {C}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mmultiscripts> <mrow /> <mrow /> <mn>13</mn> </mmultiscripts> <mtext>C</mtext> </mrow> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq12"> <EquationSource Format="TEX">\(^{12}\hbox {C}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mmultiscripts> <mrow /> <mrow /> <mn>12</mn> </mmultiscripts> <mtext>C</mtext> </mrow> </math></EquationSource> </InlineEquation> targets, respectively, near the Coulomb barrier, were investigated theoretically using the antisymmetrized molecular dynamics (AMD) model. Within the AMD framework, the ground-state configurations of <InlineEquation ID="IEq13"> <EquationSource Format="TEX">\(^{6}\hbox {Li}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mmultiscripts> <mrow /> <mrow /> <mn>6</mn> </mmultiscripts> <mtext>Li</mtext> </mrow> </math></EquationSource> </InlineEquation> and <InlineEquation ID="IEq14"> <EquationSource Format="TEX">\(^{7}\hbox {Li}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mmultiscripts> <mrow /> <mrow /> <mn>7</mn> </mmultiscripts> <mtext>Li</mtext> </mrow> </math></EquationSource> </InlineEquation> exhibit pronounced deformation characterized by well-developed d+<InlineEquation ID="IEq15"> <EquationSource Format="TEX">\(\alpha\)</EquationSource> <EquationSource Format="MATHML"><math> <mi>α</mi> </math></EquationSource> </InlineEquation> and t+<InlineEquation ID="IEq16"> <EquationSource Format="TEX">\(\alpha\)</EquationSource> <EquationSource Format="MATHML"><math> <mi>α</mi> </math></EquationSource> </InlineEquation> clustering structures, respectively. Reaction simulations were performed across a center-of-mass energy range of <InlineEquation ID="IEq17"> <EquationSource Format="TEX">\({3}-{7.6}\,{\hbox {MeV}}\)</EquationSource> <EquationSource Format="MATHML"><math> <mrow> <mn>3</mn> <mo>-</mo> <mrow> <mn>7.6</mn> </mrow> <mspace width="0.166667em" /> <mtext>MeV</mtext> </mrow> </math></EquationSource> </InlineEquation>, encompassing the fusion barrier region. The total fusion cross sections computed as a function of collision energy demonstrate favorable quantitative agreement with the experimental values at energies above the Coulomb barrier. Additionally, a detailed comparison was made of the partial cross sections into specific residual fragments predicted by AMD at different center-of-mass energies. The AMD model provides a robust microscopic description of light-heavy-ion fusion dynamics and captures the role of extended density distributions and cluster correlations within interacting nuclei.</p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Dynamics of near-barrier fusion reactions: antisymmetrized molecular dynamics modeling of \(^{6}\hbox {Li}\) + \(^{13}\hbox {C}\) and \(^{7}\hbox {Li}\) + \(^{12}\hbox {C}\)

  • Mei-Rong Huang,
  • Su-Ya-La-Tu Zhang,
  • De-Xing Wang,
  • Dan-Dan Niu,
  • Guo Li,
  • Hao-Chun Yu

摘要

The fusion dynamics of \(^{6}\hbox {Li}\) 6 Li and \(^{7}\hbox {Li}\) 7 Li projectiles incident on the \(^{13}\hbox {C}\) 13 C and \(^{12}\hbox {C}\) 12 C targets, respectively, near the Coulomb barrier, were investigated theoretically using the antisymmetrized molecular dynamics (AMD) model. Within the AMD framework, the ground-state configurations of \(^{6}\hbox {Li}\) 6 Li and \(^{7}\hbox {Li}\) 7 Li exhibit pronounced deformation characterized by well-developed d+ \(\alpha\) α and t+ \(\alpha\) α clustering structures, respectively. Reaction simulations were performed across a center-of-mass energy range of \({3}-{7.6}\,{\hbox {MeV}}\) 3 - 7.6 MeV , encompassing the fusion barrier region. The total fusion cross sections computed as a function of collision energy demonstrate favorable quantitative agreement with the experimental values at energies above the Coulomb barrier. Additionally, a detailed comparison was made of the partial cross sections into specific residual fragments predicted by AMD at different center-of-mass energies. The AMD model provides a robust microscopic description of light-heavy-ion fusion dynamics and captures the role of extended density distributions and cluster correlations within interacting nuclei.