First experimental evidence of the population of the first 2− state in 16 C above the neutron threshold is obtained by neutron knockout from 17 C on a hydrogen target. The invariant mass method combined with in-beam γ -ray detection is used to locate the state at 5.45(1) MeV. Comparison of its populating cross section and parallel momentum distribution with a Glauber model calculation utilizing the shell-model spectroscopic factor confirms the core-neutron removal nature of this state. Additionally, a previously known unbound state at 6.11 MeV and a new state at 6.28(2) MeV are observed. The position of the first 2− state, which belongs to a member of the lowest-lying p – sd cross shell transition, is reasonably well described by the shell-model calculation using the WBT interaction.
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"titles": [ { "source": "Elsevier", "title": "One-neutron knockout reaction of 17 C on a hydrogen target at 70 MeV/nucleon" } ], "dois": [ { "value": "10.1016/j.physletb.2013.12.024" } ], "publication_info": [ { "page_end": "466", "page_start": "462", "material": "article", "journal_title": "Physics Letters B", "year": 2014 } ], "$schema": "http://repo.scoap3.org/schemas/hep.json", "abstracts": [ { "source": "Elsevier", "value": "First experimental evidence of the population of the first 2\u2212 state in 16 C above the neutron threshold is obtained by neutron knockout from 17 C on a hydrogen target. The invariant mass method combined with in-beam \u03b3 -ray detection is used to locate the state at 5.45(1) MeV. Comparison of its populating cross section and parallel momentum distribution with a Glauber model calculation utilizing the shell-model spectroscopic factor confirms the core-neutron removal nature of this state. Additionally, a previously known unbound state at 6.11 MeV and a new state at 6.28(2) MeV are observed. The position of the first 2\u2212 state, which belongs to a member of the lowest-lying p \u2013 sd cross shell transition, is reasonably well described by the shell-model calculation using the WBT interaction." } ], "imprints": [ { "date": "2014-01-01", "publisher": "Elsevier" } ], "acquisition_source": { "date": "2014-01-08T00:00:00", "source": "Elsevier", "method": "scoap3", "submission_number": "372790d4430511e898b102163e01809a" } }