Chinese Physics C > 2013, Vol. 37 > Issue(5): 054101 DOI: 10.1088/1674-1137/37/5/054101

Structure ofA=11 double-Λ hypernuclei studied withthree-body forces

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Abstract：
The energy levels and ΛΛ bond energy of the double-Λ hypernucleus ¹¹Be are calculated considering two- and three-nucleon forces. The interactions between the constituent particles are contact interactions that reproduce the low-energy binding energy of the nuclei. Effective action is constructed to involve the three-body forces. In this paper, we compare the binding energy result that is obtained with the experimental and other modern nucleon-nucleon potentials. The results of all the schemes agree very well, showing the high accuracy of our present ability to calculate the many-nucleon bound state with three-body forces. The experimental value of B _{Λ Λ}( _ΛΛ ¹¹Be)=20.83 MeV seems to be more compatible with our calculated value of B _ΛΛ( _ΛΛ ¹¹Be)=19.31 MeV in comparison with the calculated result of 18.23 MeV by Hiyama et al.

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H. Sadeghi, Sh. Nahidinejad and K. Bahraminejad. Structure of A=11 double-Λ hypernuclei studied withthree-body forces[J]. Chinese Physics C, 2013, 37(5): 054101. doi: 10.1088/1674-1137/37/5/054101

H. Sadeghi, Sh. Nahidinejad and K. Bahraminejad. Structure of A=11 double-Λ hypernuclei studied withthree-body forces[J]. Chinese Physics C, 2013, 37(5): 054101. doi:10.1088/1674-1137/37/5/054101 shu

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Received: 2012-06-12
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Structure ofA=11 double-Λ hypernuclei studied withthree-body forces

Corresponding author:H. Sadeghi,

Received Date:2012-06-12
Accepted Date:1900-01-01
Available Online:2013-05-05

Abstract:The energy levels and ΛΛ bond energy of the double-Λ hypernucleus¹¹Be are calculated considering two- and three-nucleon forces. The interactions between the constituent particles are contact interactions that reproduce the low-energy binding energy of the nuclei. Effective action is constructed to involve the three-body forces. In this paper, we compare the binding energy result that is obtained with the experimental and other modern nucleon-nucleon potentials. The results of all the schemes agree very well, showing the high accuracy of our present ability to calculate the many-nucleon bound state with three-body forces. The experimental value ofB_{Λ Λ}(_ΛΛ¹¹Be)=20.83 MeV seems to be more compatible with our calculated value ofB_ΛΛ(_ΛΛ¹¹Be)=19.31 MeV in comparison with the calculated result of 18.23 MeV by Hiyama et al.