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          Institute: MPI für Kernphysik     Collection: Nuclear Physics and Nuclear Probes     Display Documents

ID: 62577.0, MPI für Kernphysik / Nuclear Physics and Nuclear Probes
Experimental evidence for the 8B ground state configuration
Authors:Cortina-Gil, D.; Markenroth, K.; Attallah, F.; Baumann, T.; Benlliure, J.; Borge, M. J. G.; Chulkov, L. V.; Datta Pramanik, U.; Fernandez-Vazquez, J.; Forssén, C.; Fraile, L. M.; Geissel, H.; Gerl, J.; Hammache, F.; Itahashi, K.; Janik, R.; Jonson, B.; Karlsson, S.; Lenske, H.; Mandal, S.; Meister, M.; Mocko, X.; Münzenberg, G.; Ohtsubo, T.; Ozawa, A.; Parfenova, Y.; Pribora, V.; Riisager, K.; Scheit, H.; Schneider, R.; Schmidt, K.; Schrieder, G.; Simon, H.
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Physics Letters B
Journal Abbrev.:Phys. Lett. B
Issue / Number:1-2
Start Page:36
End Page:41
Copyright:Copyright © 2002 Elsevier Science B.V. All rights reserved.
Review Status:Peer-review
Audience:Experts Only
Abstract / Description: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.
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group D. Schwalm/Nuclear Gamma-Ray Spectroscopy (H. Scheit)
External Affiliations:Universidad 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
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