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  Experimental evidence for the 8B ground state configuration

Cortina-Gil, D., Markenroth, K., Attallah, F., Baumann, T., Benlliure, J., Borge, M. J. G., et al. (2002). Experimental evidence for the 8B ground state configuration. Physics Letters B, 529(1-2), 36-41.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0011-84F9-0 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0011-84FA-E
Genre: Journal Article

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Cortina-Gil, D.1, Author
Markenroth, K.1, Author
Attallah, F.1, Author
Baumann, T.1, Author
Benlliure, J.1, Author
Borge, M. J. G.1, Author
Chulkov, L. V.1, Author
Datta Pramanik, U.1, Author
Fernandez-Vazquez, J.1, Author
Forssén, C.1, Author
Fraile, L. M.1, Author
Geissel, H.1, Author
Gerl, J.1, Author
Hammache, F.1, Author
Itahashi, K.1, Author
Janik, R.1, Author
Jonson, B.1, Author
Karlsson, S.1, Author
Lenske, H.1, Author
Mandal, S.1, Author
Meister, M.1, AuthorMocko, X.1, AuthorMünzenberg, G.1, AuthorOhtsubo, T.1, AuthorOzawa, A.1, AuthorParfenova, Y.1, AuthorPribora, V.1, AuthorRiisager, K.2, AuthorScheit, H.3, Author              Schneider, R.1, AuthorSchmidt, K.1, AuthorSchrieder, G.1, AuthorSimon, H.1, Author more..
Affiliations:
1Universidad de Santiago de Compostela, E-15706 Santiago de Compostela, Spain Gesellschaft für Schwerionenforschung (GSI), D-64291 Darmstadt, Germany Avd. för Experimentell Fysik, Chalmers Tekniska Högskola och Göteborgs Universitet, SE-412 96 Göteborg, Sweden NSCL, Michigan State University, East Lansing, MI 48824, USA Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain Kurchatov Institute, RU-123182 Moscow, Russia Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan Faculty of Mathematics and Physics, Comenius University, 84215 Bratislava, Slovakia Institut für Theoretische Physik I, D-35392 Giessen, Germany Department of Physics, Niigata University, 950-2181, Japan RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-01, Japan Institut for Fysik og Astronomi, Aarhus Universitet, DK-8000 Aarhus C, Denmark Physik-Deptartment E12, Technische Universität, München, D-85748 Garching, Germany Institut für Kernphysik, Technische Universität, D-64289 Darmstadt, Germany, ou_persistent22              
2Universidad de Santiago de Compostela, E-15706 Santiago de Compostela, Spain Gesellschaft für Schwerionenforschung (GSI), D-64291 Darmstadt, Germany Avd. för Experimentell Fysik, Chalmers Tekniska Högskola och Göteborgs Universitet, SE-412 96 Göteborg, Sweden NSCL, Michigan State University, East Lansing, MI 48824, USA Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain Kurchatov Institute, RU-123182 Moscow, Russia Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan Faculty of Mathematics and Physics, Comenius University, 84215 Bratislava, Slovakia Institut für Theoretische Physik I, D-35392 Giessen, Germany Department of Physics, Niigata University, 950-2181, Japan RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-01, Japan Institut for Fysik og Astronomi, Aarhus Universitet, DK-8000 Aarhus C, Denmark Physik-Deptartment E12, Technische Universität, München, D-85748 Garching, Germany Institut für Kernphysik, Technische Universität, D-64289 Darmstadt, Germany, ou_persistent22              
3Prof. Dirk Schwalm, Emeriti, MPI for Nuclear Physics, Max Planck Society, ou_907546              

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 Abstract: The 7Be fragments produced in one-proton removal from relativistic 8B nuclei of 936 MeV/nucleon in a carbon target have been detected in coincidence with γ rays emitted by these fragments at the reaction target. It is found that 13±3% of the 7Be fragments are released in the 429 keV excited state, 7Be*, which gives direct experimental information on the ground state configuration of 8B. The longitudinal momentum distributions (p||) of the 7Be fragments have been measured, both inclusively and in coincidence with de-excitation γ -rays from 7Be*. The widths and cross sections of the respective p|| distributions are compared with calculations in a three-body cluster model.

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Language(s): eng - English
 Dates: 2002
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: eDoc: 62577
 Degree: -

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Title: Physics Letters B
  Alternative Title : Phys. Lett. B
Source Genre: Journal
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Pages: - Volume / Issue: 529 (1-2) Sequence Number: - Start / End Page: 36 - 41 Identifier: -