arXiv subjects

Yu-Hong Tan

Publications and source records attributed to Yu-Hong Tan.

2 recordsLinked to original sources

arXiv2004

The effect of different baryons impurities

We demonstrate the different effect of different baryons impurities on the static properties of nuclei within the framework of the relativistic mean-field model. Systematic calculations show that $Λ_c^+$ and $Λ_b$ has the same attracting role as $Λ$ hyperon does in lighter hypernuclei. $Ξ^-$ and $Ξ_c^0$ hyperon has the attracting role only for the protons distribution, and has a repulsive role for the neutrons distribution. On the contrary, $Ξ^0$ and $Ξ^+_c$ hyperon attracts surrounding neutrons and reveals a repulsive force to the protons. We find that the different effect of different baryons impurities on the nuclear core is due to the different third component of their isospin.

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arXiv2003

Different effect of the hyperons $Λ$ and $Ξ$ on the nuclear core

We demonstrate the different effect of strange impurities ($Λ$ and $Ξ$) on the static properties of nuclei within the framework of the relativistic mean-field model. Systematic calculations show that the gluelike role of $Λ$ hyperon is universal for all $Λ$-hypernuclei considered. However, $Ξ^-$ hyperon has the gluelike role only for the protons distribution in nuclei, and for the neutrons distribution $Ξ^-$ hyperon plays a repulsive role. On the other hand, $Ξ^0$ hyperon attracts surrounding neutrons and reveals a repulsive force to the protons. Possible explanations of the above observation are discussed.

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