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arXiv · 1111.1488

Description of single-Lambda hypernuclei with relativistic point coupling model

Y. Tanimura·K. Hagino
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Abstract

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.

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Y. Tanimura, K. Hagino. 2011-11-07. Description of single-Lambda hypernuclei with relativistic point coupling model. https://doi.org/10.1103/physrevc.85.014306

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