Sensitivity of Lambda single-particle energies to the Lambda N spin-orbit coupling and to nuclear core structure in p-shell and sd-shell hypernuclei

0463725 - ÚJF 2017 RIV NL eng J - Journal Article
Veselý, Petr - Hiyama, E. - Óbertová, Jaroslava - Mareš, Jiří
Sensitivity of Lambda single-particle energies to the Lambda N spin-orbit coupling and to nuclear core structure in p-shell and sd-shell hypernuclei.
Nuclear Physics. A. Roč. 954, OCT (2016), s. 260-272. ISSN 0375-9474. E-ISSN 1873-1554
R&D Projects: GA ČR(CZ) GA15-04301S
Grant - others:GA MŠk(CZ) LM2010005
Institutional support: RVO:61389005
Keywords : Lambda hypernuclei * spin orbit spilitting * Lambda N interaction * mean field model
Subject RIV: BE - Theoretical Physics
Impact factor: 1.916, year: 2016

We introduce a mean field model based on realistic 2-body baryon interactions and calculate spectra of a set of p-shell and sd-shell Lambda hypernuclei - C-13(Lambda), O-17(Lambda), Ne-21(Lambda), Si-29(Lambda) and Ca-41(Lambda). The hypernuclear spectra are compared with the results of a relativistic mean field (RMF) model and available experimental data. The sensitivity of Lambda single-particle energies to the nuclear core structure is explored. Special attention is paid to the effect of spin orbit Lambda N interaction on the energy splitting of the Lambda single particle levels 0p(3/2) and 0p(1/2). In particular, we analyze the contribution of the symmetric (SLS) and the anti-symmetric (ALS) spin-orbit terms to the energy splitting. We give qualitative predictions for the calculated hypernuclei.
Permanent Link: http://hdl.handle.net/11104/0262819