arXiv subjects

Huai-Tong Xue

Publications and source records attributed to Huai-Tong Xue.

3 recordsLinked to original sources

arXiv2025

Productions of $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in different coalescence channels in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV

We study the productions of $Λ$-hypernuclei $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in the coalescence mechanism in Au-Au collisions at $\sqrt{s_{NN}}=3$ GeV. Considering the abundance and great importance of baryons and light (hyper-)nuclei on the collision dynamics, we include not only nucleon$+Λ$ coalescence but also nucleus+nucleon($Λ$) coalescence. We present contributions from different coalescence channels for $^3_Λ$H, $^4_Λ$H and $^4_Λ$He in their productions. We predict the production asymmetry between $^4_Λ$H and $^4_Λ$He, characterized by yield ratios $^4_Λ\text{He}/^4_Λ\text{H}$ and $(^4_Λ\text{H}-^4_Λ\text{He})/(^4_Λ\text{H}+^4_Λ\text{He})$, which can shed light on the existence constraints of the possible neutron-$Λ$ bound states $^2_Λn~(nΛ)$ and $^3_Λn~(nnΛ)$.

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arXiv2024

Shape coexistence in Ne isotopes and hyperon impurity effect on low-lying states

Based on the beyond-mean-field Skyrme-Hartree-Fock model, we investigate the shape coexistence in Ne isotopes and the effect of $\la$ hyperon on the energy level structure in the nuclei. The up-to-date Skyrme-type $N\la$ interaction SLL4 and the $NN$ interaction SGII are employed. Low-lying energy spectra of $^{20,22,24,26,28,30,32,34}$Ne, including the low-lying states with $J\leq 6$, are predicted, discussed in detail, and found in good agreement with experimental results. The electric quadrupole transition rate is also examined. The coexistences of a ground state rotational band and a $\be$ vibrational band are revealed in $^{20,22,24}$Ne. Unlike the previously discovered shrinkage effect of $\la_{s}$ on the ground state nuclei, it is found that the $\la_{s}$ may alter the excitation mode of the second band by affecting the distribution of the collective wave function, thereby causing the $\be$ vibrational band transitions to a vibrational band with equidistant energy levels.

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arXiv2024

Proton drip line of deformed hypernuclei

The proton drip line of (hyper)nuclei is examined within the framework of the deformed Skyrme-Hartree Fock approach by adjusting the nuclear force parameters to exactly reproduce the core binding energies. The impact of adding a Λ hyperon in a s or p state is studied, and it is found that in some cases the deformation effect facilitates the extension of the drip line by an added p-state hyperon. However, no extension of the drip line is found for s-state hypernuclei.

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