Event seen by the J-PARC E07 Collaboration. A Ξ^- particle interacts with a ¹⁴N nucleus at A, creating two Λ hypernuclei which decay at B (to particles #3–6) and C (to particles #7–9). Selected for a Synopsis in Physics and an Editors’ Suggestion.

From the article:

Observation of Coulomb-Assisted Nuclear Bound State of ${\mathrm{\Xi }}^{-}–{}^{14}\mathrm{N}$ System
S. H. Hayakawa et al. (J-PARC E07 Collaboration)
Phys. Rev. Lett. 126, 062501 (2021)

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