Phys. Rev. Lett. 91, 162504 (2003) [4 pages]The t+n+n System and 5HReceived 25 March 2003; published 16 October 2003 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 Iπ=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. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.162504
DOI:
10.1103/PhysRevLett.91.162504
PACS:
27.10.+h, 21.10.Pc, 25.60.Gc
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