The t+n+n system and 5H

Summary, in English

The one-proton knockout channel from 6He (240 MeV/u) impinging on a carbon target has been investigated. The triton fragments originating from this channel were detected in coincidence with the two neutrons. A broad structure, peaked at 3 MeV above the t+2n threshold, is observed in the t+n+n-relative energy spectrum. It is shown that this structure is mainly due to a I(pi)=1/2(+) resonance as expected for the 5H ground state, and from the observed angular and energy correlations, being used for the first time in 5H studies, that the neutrons to a large extent occupy the p shell.

• Author: M Meister; L V Chulkov; H Simon; T Aumann; M J G Borge; Th W Elze; H Emling; H Geissel; Margareta Hellström; B Jonson; J V Kratz; R Kulessa; Y Leifels; Karin Markenroth Bloch; G Munzenberg; F Nickel; T Nilsson; G Nyman; V Pribora; A Richter
• Publishing year: 2003
• Language: English
• Publication/Series: Physical Review Letters
• Volume: 91
• Issue: 16
• Links: http://dx.doi.org/10.1103/PhysRevLett.91.162504
• Document type: Journal article
• Publisher: American Physical Society
• Status: Published
• ISBN/ISSN/Other: ISSN: 1079-7114