No-Core Shell Model for Nuclear Systems with Strangeness

Abstract

We report on a novel ab initio approach for nuclear few- and many-body systems with strangeness. Recently, we developed a relevant no-core shell model technique which we successfully applied in first calculations of lightest $\Lambda$ hypernuclei. The use of a translationally invariant finite harmonic oscillator basis allows us to employ large model spaces, compared to traditional shell model calculations, and use realistic nucleon-nucleon and nucleon-hyperon interactions (such as those derived from EFT). We discuss formal aspects of the methodology, show first demonstrative results for ${}_{\Lambda }^3$H, ${}_{\Lambda }^4$H and ${}_{\Lambda }^4$He, and give outlook.

4 pages, 3 figures; Proceedings of the 22nd European Conference on Few Body Problems in Physics, 9 - 13 September, 2013, Cracow, Poland

References in corpus (5)

• Recent developments in no-core shell-model calculations
• Hyperon-nucleon interaction at next-to-leading order in chiral effective field theory
• Hyperon-nucleon interactions - a chiral effective field theory approach
• Hyperon-Nucleon Interactions and the Composition of Dense Nuclear Matter from Quantum Chromodynamics
• $\Lambda NN$ and $\Sigma NN$ systems at threshold: II. The effect of D waves

Cited by in corpus (11)

• Strangeness in nuclear physics
• Ab-initio calculations of charge symmetry breaking in the A=4 hypernuclei
• Charge symmetry breaking in the A=4 hypernuclei
• Revisiting the hypertriton lifetime puzzle
• S-shell $\Lambda \Lambda$ hypernuclei based on chiral interactions
• Charge symmetry breaking in light $\Lambda$ hypernuclei
• Study on $\Lambda nn$ Bound State and Resonance
• Effect of a realistic three-body force on the spectra of medium-mass hypernuclei
• Old and New in Strangeness Nuclear Physics
• Lifetime of the hypertriton
• Charge symmetry breaking in $\Lambda$ hypernuclei: updated HYP 2015 progress report