2alpha+t cluster feature of $3/2_3^{-}$ state in ${}^{11}$B

Abstract

We reanalyze $2\alpha +t$ cluster features of $3/2^{-}$ states in ${}^{11}$B by investigating the $t$ cluster distribution around a $2\alpha$ core in ${}^{11}$B, calculated with the method of antisymmetrized molecular dynamics (AMD). In the $3/2_3^{-}$ state, a $t$ cluster is distributed in a wide region around $2\alpha$, indicating that the $t$ cluster moves rather freely in angular as well as radial motion. From the weak angular correlation and radial extent of the $t$ cluster distribution, we propose an interpretation of a $2\alpha +t$ cluster gas for the $3/2_3^{-}$ state. In this study, we compare the $2\alpha +t$ cluster feature in ${}^{11}$B($3/2_3^{-}$) with the $3\alpha$ cluster feature in ${}^{12}$C($0_2^{+}$), and discuss their similarities and differences.

arXiv comment14 pages, 11 figures

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Cited by in corpus (4)

• Microscopic Clustering in Light Nuclei
• 2$\alpha$+$t$ cluster structure in ${}^{11}$B
• Systematic investigation of the Hoyle-analog states in light nuclei
• Search for $\alpha$ condensed states in ${}^{13}$C using $\alpha$ inelastic scattering