We present the hypernuclear states of^(37)_ΛAr obtained using the Skyrme-Hartree-Fock(SHF)model and a beyond-mean-field approach,including angular momentum projection(AMP)and the generator coordinate method(GCM).A co...We present the hypernuclear states of^(37)_ΛAr obtained using the Skyrme-Hartree-Fock(SHF)model and a beyond-mean-field approach,including angular momentum projection(AMP)and the generator coordinate method(GCM).A comprehensive energy spectrum is given,which includes normally deformed(ND)and super deformed(SD)hypernuclear states with positive or negative parities.Energy levels corresponding to the configurations in which aΛhyperon occupies the s-,p-,or sd-shell orbitals are discussed.For the s-shellΛ,we pay special attention to the ND and SD states corresponding to the configurations^(36)Ar^(N)\otimes s_Λand^(36)Ar^(S)otimes s_Λ,where^(36)Ar^(N)and^(36)Ar^(S)denote the ND and SD nuclear cores,respectively.The disagreements between different models over theΛseparation energy of the SD state in previous studies are revisited.For the p-shellΛ,four rotational bands are predicted,and the impurity effects are shown.Furthermore,two energy levels corresponding to the configurations^(36)Ar^otimesΛ[101](3)(2)^(-)and^(36)Ar^(S)otimesΛ[101](1)(2)^(-)are obtained below the separation threshold of^(36)Ar+Λwithin 0.5 MeV.For the sd-shellΛ,three bound states are found near the separation threshold,and the mechanism behind these states are discussed.展开更多
基金Supported by the National Natural Science Foundation of China (11905165, 11775081, 12175071, 11547044)the 111 Project (B17035)the Fundamental Research Funds for the Central Universities (JB160510, XJS18020)
文摘We present the hypernuclear states of^(37)_ΛAr obtained using the Skyrme-Hartree-Fock(SHF)model and a beyond-mean-field approach,including angular momentum projection(AMP)and the generator coordinate method(GCM).A comprehensive energy spectrum is given,which includes normally deformed(ND)and super deformed(SD)hypernuclear states with positive or negative parities.Energy levels corresponding to the configurations in which aΛhyperon occupies the s-,p-,or sd-shell orbitals are discussed.For the s-shellΛ,we pay special attention to the ND and SD states corresponding to the configurations^(36)Ar^(N)\otimes s_Λand^(36)Ar^(S)otimes s_Λ,where^(36)Ar^(N)and^(36)Ar^(S)denote the ND and SD nuclear cores,respectively.The disagreements between different models over theΛseparation energy of the SD state in previous studies are revisited.For the p-shellΛ,four rotational bands are predicted,and the impurity effects are shown.Furthermore,two energy levels corresponding to the configurations^(36)Ar^otimesΛ[101](3)(2)^(-)and^(36)Ar^(S)otimesΛ[101](1)(2)^(-)are obtained below the separation threshold of^(36)Ar+Λwithin 0.5 MeV.For the sd-shellΛ,three bound states are found near the separation threshold,and the mechanism behind these states are discussed.
