Evidence for a new low-lying resonance state in 7He
(2002) In Physical Review Letters 88(10).- Abstract
- Low-lying resonance states in 7He(6He+n), formed after fragmentation reactions of a 227 MeV/nucleon 8He beam on a carbon target, have been studied. Coincidences between 6He nuclei and neutrons, corresponding to the one-neutron knockout channel in 8He, were selected. The relative energy spectrum in the 6He+n system shows a structure, which is interpreted as the 7He ( Ipi = 3/2(-)) ground state, unbound with 0.43(2) MeV relative to the 6He+n system and a width of Gamma = 0.15(8) MeV overlapping with an excited ( Ipi = 1/2(-)) state observed at 1.0(1) MeV with a width of Gamma = 0.75(8) MeV.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1125279
- author
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- in
- Physical Review Letters
- volume
- 88
- issue
- 10
- article number
- 102501
- publisher
- American Physical Society
- external identifiers
-
- pmid:11909350
- scopus:0037061218
- ISSN
- 1079-7114
- DOI
- 10.1103/PhysRevLett.88.102501
- language
- English
- LU publication?
- no
- id
- db69ae1e-b08e-493a-86ad-c341a7d91e06 (old id 1125279)
- date added to LUP
- 2016-04-01 12:20:08
- date last changed
- 2022-04-06 11:30:22
@article{db69ae1e-b08e-493a-86ad-c341a7d91e06, abstract = {{Low-lying resonance states in 7He(6He+n), formed after fragmentation reactions of a 227 MeV/nucleon 8He beam on a carbon target, have been studied. Coincidences between 6He nuclei and neutrons, corresponding to the one-neutron knockout channel in 8He, were selected. The relative energy spectrum in the 6He+n system shows a structure, which is interpreted as the 7He ( Ipi = 3/2(-)) ground state, unbound with 0.43(2) MeV relative to the 6He+n system and a width of Gamma = 0.15(8) MeV overlapping with an excited ( Ipi = 1/2(-)) state observed at 1.0(1) MeV with a width of Gamma = 0.75(8) MeV.}}, author = {{Meister, M and Markenroth Bloch, Karin and Aleksandrov, D and Aumann, T and Axelsson, L and Baumann, T and Borge, M J G and Chulkov, L V and Dostal, W and Eberlein, B and Elze, Th W and Emling, H and Forssen, C and Geissel, H and Hellström, Margareta and Holzmann, R and Jonson, B and Kratz, J V and Kulessa, R and Leifels, Y and Leistenschneider, A and Mukha, I and Münzenberg, G and Nickel, F and Nilsson, T and Nyman, G and Richter, A and Riisager, K and Scheidenberger, C and Schrieder, G and Simon, H and Tengblad, O and Zhukov, M V}}, issn = {{1079-7114}}, language = {{eng}}, number = {{10}}, publisher = {{American Physical Society}}, series = {{Physical Review Letters}}, title = {{Evidence for a new low-lying resonance state in 7He}}, url = {{http://dx.doi.org/10.1103/PhysRevLett.88.102501}}, doi = {{10.1103/PhysRevLett.88.102501}}, volume = {{88}}, year = {{2002}}, }