科研之友
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摘要
We extend the relativistic point-coupling model to single-Lambda hypernuclei. For this purpose, we add N-Lambda effective contact couplings to the model Lagrangian and determine the parameters by fitting to the experimental data for Lambda binding energies. Our model well reproduces the data over a wide range of mass region although some of our interactions yield the reverse ordering of the spin-orbit partners from that of nucleons for heavy hypernuclei. The consistency of the interaction with the quark model predictions is also discussed.
- 出版日期2012-1-9
