$\Lambda NN$ content of $\Lambda$-nucleus potential

Eliahu Friedman; Avraham Gal

doi:10.1051/epjconf/202227106002

$\Lambda NN$ content of $\Lambda$-nucleus potential

Nuclear Theory 2023-01-11 v1 High Energy Physics - Phenomenology Nuclear Experiment

Authors: Eliahu Friedman , Avraham Gal

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Abstract

A minimally constructed $\Lambda$ -nucleus density-dependent optical potential is used to calculate binding energies of observed $1s_{\Lambda}$ , $1p_{\Lambda}$ states across the periodic table, leading to a repulsive $\Lambda NN$ contribution $D_{\Lambda}^{(3)}\approx 14$ MeV to the phenomenological $\Lambda$ -nucleus potential depth $D_{\Lambda}\approx -30$ MeV. This value is significant in connection with the so-called 'hyperon puzzle'.

Keywords

hypernuclei and hypernuclear physics nuclear physics

Cite

@article{arxiv.2301.03923,
  title  = {$\Lambda NN$ content of $\Lambda$-nucleus potential},
  author = {Eliahu Friedman and Avraham Gal},
  journal= {arXiv preprint arXiv:2301.03923},
  year   = {2023}
}

Comments

Invited talk at HYP2022, Prague, June-July 2022, reporting on a recent Phys. Lett. B published work [arXiv:2204.02264]. arXiv admin note: substantial text overlap with arXiv:2204.02264

$\Lambda NN$ content of $\Lambda$-nucleus potential

Abstract

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