Recent progress on few-body hypernuclei

TL;DR

This paper reviews recent experimental and theoretical advances in the study of few-body hypernuclei, focusing on their lifetimes, stability, charge symmetry breaking, and the onset of hypernuclear binding, to deepen understanding of strange matter.

Contribution

It provides a comprehensive review of recent progress in hypernuclear physics, highlighting new experimental data and theoretical insights into hypernuclei properties.

Findings

Lifetimes of hypertriton and other hypernuclei measured.

Evidence for charge symmetry breaking in hypernuclei.

Onset of $ ext{Lambda} ext{Lambda}$ hypernuclear binding identified.

Abstract

Few-body $\Lambda$ hypernuclei provide valuable information towards understanding strange matter. Recent experimental progress by the STAR Collaboration at the RHIC facility and by the ALICE Collaboration at the LHC has been matched by theoretical progress reviewed here: (i) lifetimes of the hypertriton $_{\Lambda}^3$H, $_{\Lambda}^3$n if particle-stable, $_{\Lambda}^4$H and $_{\Lambda}^4$He and their charge symmetry breaking, and (ii) the onset of $\Lambda\Lambda$ hypernuclear binding.