Abstract
We extend the relativistic point-coupling model to single-Λ hypernuclei. For this purpose, we add N-Λ effective contact couplings to the model Lagrangian and determine the parameters by fitting to the experimental data for Λ 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.
Original language | English |
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Article number | 014306 |
Journal | Physical Review C - Nuclear Physics |
Volume | 85 |
Issue number | 1 |
DOIs | |
Publication status | Published - 2012 Jan 9 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics