Matches in SemOpenAlex for { <https://semopenalex.org/work/W4221159946> ?p ?o ?g. }
Showing items 1 to 59 of
59
with 100 items per page.
- W4221159946 abstract "We extend the relativistic Hartree-Fock (RHF) theory to study the structure of single-$Lambda$ hypernuclei. The density dependence is taken in both meson-nucleon and meson-hyperon coupling strengths, and the induced $Lambda$-nucleon ($Lambda N$) effective interactions are determined by fitting $Lambda$ separation energies to the experimental data for several single-$Lambda$ hypernuclei. The equilibrium of nuclear dynamics described by the RHF model in normal atomic nuclei, namely, the balance between nuclear attractive and repulsive interactions, is then found to be drastically changed in single-$Lambda$ hypernuclei, revealing a different role of Fock terms via $Lambda$ hyperon from the nucleon exchange. Since only one hyperon exists in a single-$Lambda$ hypernucleus, the overwhelmed $Lambda N$ and $LambdaLambda$ attractions via the Hartree than the $LambdaLambda$ repulsion from the Fock terms require an alternation of meson-hyperon coupling strengths in RHF to rebalance the effective nuclear force with the strangeness degree of freedom, leading to an improved description of $Lambda$ Dirac mass and correspondingly a systematically reduced $sigma$-$Lambda$ coupling strength $g_{sigmaLambda}$ in current models as compared to those relativistic mean-field (RMF) approaches without Fock terms. As a result, the effective $Lambda$ spin-orbit coupling potential in the ground state of hypernuclei is suppressed, and these RHF models predict correspondingly a quenching effect in $Lambda$ spin-orbit splitting in comparison with the RMF cases. Furthermore, the $Lambda$ spin-orbit splitting could decrease efficiently by evolving the hyperon-relevant couplings $g_{sigmaLambda}$ and $g_{omegaLambda}$ simultaneously, where to reconcile with the empirical value the RHF models address a larger parameter space of meson-hyperon couplings." @default.
- W4221159946 created "2022-04-03" @default.
- W4221159946 creator A5003851571 @default.
- W4221159946 creator A5016385853 @default.
- W4221159946 creator A5037858398 @default.
- W4221159946 creator A5042658211 @default.
- W4221159946 date "2022-03-09" @default.
- W4221159946 modified "2023-09-24" @default.
- W4221159946 title "Quenched {Lambda} spin-orbit splitting by relativistic Fock diagram in single-{Lambda} hypernuclei" @default.
- W4221159946 doi "https://doi.org/10.48550/arxiv.2203.04581" @default.
- W4221159946 hasPublicationYear "2022" @default.
- W4221159946 type Work @default.
- W4221159946 citedByCount "0" @default.
- W4221159946 crossrefType "posted-content" @default.
- W4221159946 hasAuthorship W4221159946A5003851571 @default.
- W4221159946 hasAuthorship W4221159946A5016385853 @default.
- W4221159946 hasAuthorship W4221159946A5037858398 @default.
- W4221159946 hasAuthorship W4221159946A5042658211 @default.
- W4221159946 hasBestOaLocation W42211599461 @default.
- W4221159946 hasConcept C109214941 @default.
- W4221159946 hasConcept C121332964 @default.
- W4221159946 hasConcept C127413603 @default.
- W4221159946 hasConcept C131584629 @default.
- W4221159946 hasConcept C171454935 @default.
- W4221159946 hasConcept C172695262 @default.
- W4221159946 hasConcept C185544564 @default.
- W4221159946 hasConcept C200006409 @default.
- W4221159946 hasConcept C2778113609 @default.
- W4221159946 hasConcept C44383333 @default.
- W4221159946 hasConcept C62520636 @default.
- W4221159946 hasConcept C78519656 @default.
- W4221159946 hasConceptScore W4221159946C109214941 @default.
- W4221159946 hasConceptScore W4221159946C121332964 @default.
- W4221159946 hasConceptScore W4221159946C127413603 @default.
- W4221159946 hasConceptScore W4221159946C131584629 @default.
- W4221159946 hasConceptScore W4221159946C171454935 @default.
- W4221159946 hasConceptScore W4221159946C172695262 @default.
- W4221159946 hasConceptScore W4221159946C185544564 @default.
- W4221159946 hasConceptScore W4221159946C200006409 @default.
- W4221159946 hasConceptScore W4221159946C2778113609 @default.
- W4221159946 hasConceptScore W4221159946C44383333 @default.
- W4221159946 hasConceptScore W4221159946C62520636 @default.
- W4221159946 hasConceptScore W4221159946C78519656 @default.
- W4221159946 hasLocation W42211599461 @default.
- W4221159946 hasOpenAccess W4221159946 @default.
- W4221159946 hasPrimaryLocation W42211599461 @default.
- W4221159946 hasRelatedWork W1994956861 @default.
- W4221159946 hasRelatedWork W2011812637 @default.
- W4221159946 hasRelatedWork W2025715715 @default.
- W4221159946 hasRelatedWork W2035458798 @default.
- W4221159946 hasRelatedWork W2038588604 @default.
- W4221159946 hasRelatedWork W2062934106 @default.
- W4221159946 hasRelatedWork W2999592703 @default.
- W4221159946 hasRelatedWork W349780445 @default.
- W4221159946 hasRelatedWork W45656704 @default.
- W4221159946 hasRelatedWork W294361192 @default.
- W4221159946 isParatext "false" @default.
- W4221159946 isRetracted "false" @default.
- W4221159946 workType "article" @default.