Experimental evidence for the 8B ground state configuration

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.

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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: https://hdl.handle.net/11858/00-001M-0000-0011-84F9-0 Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-84FA-E

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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: Date issued: 2002

Publication Status: Issued

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Rev. Type: Peer

Identifiers: eDoc: 62577

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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: -