Behaviour of the potentials due to strangeness degree of freedom in ${}_{\Lambda \Lambda }^6$He hypernucleus

Abstract

Fully correlated study of ${}_{\Lambda \Lambda }^6$He hypernucleus has been performed with two- and three- baryon potentials. For the S=-2 sector, various simulations of Nijmegen $\Lambda \Lambda$ potential models have been used. We investigate the role of every strength of the strange sector potentials on the energy breakdown and present a crystal clear understanding of their interplay. Consistency between ${}_{\Lambda }^5$He and ${}_{\Lambda \Lambda }^6$He depends on the $\Lambda N$ space-exchange strength only. Investigation limits the strength of simulated Nijmegen $\Lambda \Lambda$ potential models. The study is a step forward to determine all the strengths, to reslove A=5 anomaly and to search for ${}_{\Lambda \Lambda }^4$H in an authentic way.

arXiv comment4 pages, 1 figure

References in corpus (19)

• An accurate nucleon-nucleon potential with charge-independence breaking
• Quantum Monte Carlo Calculations of $A\le 6$ Nuclei
• Soft-core hyperon-nucleon potentials
• The Hypernuclei ${}_{\Lambda }^4$He and ${}_{\Lambda }^4$H: Challenges for Modern Hyperon-Nucleon Forces
• Four-body cluster structure of $A=7-10$ double-$\Lambda$ hypernuclei
• Ab initio approach to s-shell hypernuclei 3H_Lambda, 4H_Lambda, 4He_Lambda and 5He_Lambda with a Lambda N-Sigma N interaction
• Faddeev-Yakubovsky calculations for light Lambda-Lambda hypernuclei
• Light Lambda-Lambda Hypernuclei and the Onset of Stability for Lambda-Xi Hypernuclei
• Faddeev-Yakubovsky search for Lambda-Lambda hydrogen-4
• Faddeev calculations for the A=5,6 Lambda-Lambda hypernuclei
• Shell-Model Description of Lambda Hypernuclei
• Full-Coupled Channel Approach to Doubly Strange $s$-Shell Hypernuclei
• Stochastic Variational Search for ${}_{\Lambda \Lambda }^4$H
• Variational calculations of the $\Lambda$-seperation energy of the ${}_{\Lambda }^{17}$O hypernucleus
• Lambda-Lambda bond energy from the Nijmegen potentials
• The three-baryon $\Lambda NN$ potential
• What Does Free Space Lambda-Lambda Interaction Predict for Lambda-Lambda Hypernuclei?
• Phenomenological Lambda-Nuclear Interactions
• $\Lambda N$ space-exchange correlation effects in ${}_{\Lambda }^5$He hypernucleus