Phys. Rev. C 78, 054311 (2008) [5 pages]Deformation of Λ hypernucleiReceived 25 August 2008; published 12 November 2008 We study the deformation property of Λ hypernuclei using the relativistic mean-field (RMF) method. We find that Λ29Si and Λ13C hypernuclei have a spherical shape as a consequence of the additional Λ particle, whereas the corresponding core nuclei, 28Si and 12C, are oblately deformed. Most other hypernuclei have a similar deformation parameter to the core nucleus, in accordance with the previous study with the nonrelativistic Skyrme-Hartree-Fock method. We discuss the sensitivity of our results to the choice of pairing interaction and to the parameter set of the RMF Lagrangian. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.78.054311
DOI:
10.1103/PhysRevC.78.054311
PACS:
21.80.+a, 21.10.Dr, 21.30.Fe, 21.60.Jz
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