Abstract
In an emulsion-counter hybrid experiment performed at J-PARC, a absorption event was observed which decayed into twin single- hypernuclei. Kinematic calculations enabled a unique identification of the reaction process as . For the binding energy of the hyperon in the system a value of was deduced. The energy level of is likely a nuclear state which indicates a weak coupling.
- Received 28 October 2020
- Revised 19 November 2020
- Accepted 23 December 2020
DOI:https://doi.org/10.1103/PhysRevLett.126.062501
© 2021 American Physical Society
Physics Subject Headings (PhySH)
synopsis
Doubly Strange Nucleus Observed
Published 11 February 2021
Particle physicists have detected a short-lived nucleus containing two strange quarks, whose properties could provide new insights into the behavior of other nuclear particles.
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