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Properties of the 7...
Properties of the 7He ground state from 8He neutron knockout
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- Aksyutina, Yuliya, 1983 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Johansson, Håkan T, 1977 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Aumann, T. (author)
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Boretzky, K. (author)
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- Meister, Mikael, 1969 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Chatillon, A. (author)
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Chulkov, L.V. (author)
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Cortina-Gil, D. (author)
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Pramanik, U. Datta (author)
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Emling, H. (author)
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- Forssen, Christian, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Fynbo, H.O.U. (author)
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Geissel, H. (author)
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Ickert, G. (author)
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- Jonson, Björn, 1941 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Kulessa, R. (author)
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Langer, C. (author)
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- Lantz, Mattias, 1971 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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LeBleis, T. (author)
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- Lindahl, Anton, 1982 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för fysik (GU),Department of Physics (GU),University of Gothenburg
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Mahata, K. (author)
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Meister, Mikael (author)
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Münzenberg, G. (author)
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- Nilsson, Thomas, 1965 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nyman, Göran Hugo, 1943 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Palit, R. (author)
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Paschalis, S. (author)
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Prokopowicz, W. (author)
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Reifarth, R. (author)
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Richter, A. (author)
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Riisager, K. (author)
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Schrieder, G. (author)
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Simon, H. (author)
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Sümmerer, K. (author)
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Tengblad, Olof, 1957 (author)
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Weick, H. (author)
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- Zhukov, Mikhail, 1943 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2009
- 2009
- English.
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In: Physics Letters B. - : Elsevier BV. - 0370-2693. ; 679:3, s. 191-196
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Abstract
Subject headings
Close
- The unbound nucleus 7He, produced in neutron-knockout reactions with a 240 MeV/u 8He beam in a liquid-hydrogen target, has been studied in an experiment at the ALADIN-LAND setup at GSI. From an R-matrix analysis the resonance parameters for 7He as well as the spectroscopic factor for the 6He(0+) + n configuration in its ground-state have been obtained. The spectroscopic factor is 0.61 confirming that 7He is not a pure single-particle state. An analysis of 5He data from neutron-knockout reactions of 6He in a carbon target reveals the presence of an s-wave component at low energies in the α+n relative energy spectrum. A possible low-lying exited state in 7He observed in neutron knockout data from 8He in a carbon target and tentatively interpreted as a Iπ=1/2− state, could not be observed in the present experiment. Possible explanations of the shape difference between the 7He resonance obtained in the two knockout reactions are discussed in terms of target-dependence or different reaction mechanisms at relativistic energies.
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Aksyutina, Yuliy ...
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Johansson, Håkan ...
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Aumann, T.
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Boretzky, K.
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Meister, Mikael, ...
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Chatillon, A.
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show more...
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Chulkov, L.V.
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Cortina-Gil, D.
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Pramanik, U. Dat ...
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Emling, H.
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Forssen, Christi ...
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Fynbo, H.O.U.
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Geissel, H.
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Ickert, G.
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Jonson, Björn, 1 ...
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Kulessa, R.
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Langer, C.
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Lantz, Mattias, ...
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LeBleis, T.
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Lindahl, Anton, ...
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Mahata, K.
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Meister, Mikael
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Münzenberg, G.
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Nilsson, Thomas, ...
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Nyman, Göran Hug ...
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Palit, R.
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Paschalis, S.
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Prokopowicz, W.
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Reifarth, R.
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Richter, A.
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Riisager, K.
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Schrieder, G.
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Simon, H.
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Sümmerer, K.
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Tengblad, Olof, ...
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Weick, H.
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Zhukov, Mikhail, ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Subatomic Physic ...
- Articles in the publication
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Physics Letters ...
- By the university
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University of Gothenburg
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Chalmers University of Technology