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Experimental evidence for the 8B ground state configuration

Cortina-Gil, D. ; Markenroth, K. LU orcid ; Attallah, F ; Baumann, T ; Benlliure, J ; Borge, M J G ; Chulkov, L V ; Datta Pramanik, U. ; Fernandez-Vazquez, J and Forssén, C , et al. (2002) In Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 529(1-2). p.36-41
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... (More)

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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publishing date
type
Contribution to journal
publication status
published
in
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
529
issue
1-2
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:0037075591
ISSN
0370-2693
DOI
10.1016/S0370-2693(02)01245-5
language
English
LU publication?
no
id
0e27a7c8-18c4-47c0-83b4-74ff6967aff1
date added to LUP
2017-03-06 22:49:26
date last changed
2022-03-24 09:00:04
@article{0e27a7c8-18c4-47c0-83b4-74ff6967aff1,
  abstract     = {{<p>The <sup>7</sup>Be fragments produced in one-proton removal from relativistic <sup>8</sup>B 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 <sup>7</sup>Be fragments are released in the 429 keV excited state, <sup>7</sup>Be*, which gives direct experimental information on the ground state configuration of <sup>8</sup>B. The longitudinal momentum distributions (p∥) of the <sup>7</sup>Be fragments have been measured, both inclusively and in coincidence with de-excitation γ-rays from <sup>7</sup>Be*. The widths and cross sections of the respective p∥ distributions are compared with calculations in a three-body cluster model.</p>}},
  author       = {{Cortina-Gil, D. and Markenroth, K. and Attallah, F and Baumann, T and Benlliure, J and Borge, M J G and Chulkov, L V and Datta Pramanik, U. and Fernandez-Vazquez, J and Forssén, C and Fraile, L. M. and Geissel, H and Gerl, J. and Hammache, F and Itahashi, K and Janik, R. and Jonson, B. and Karlsson, S. and Lenske, H and Mandal, S. and Meister, M and Mocko, X. and Münzenberg, G. and Ohtsubo, T. and Ozawa, A and Parfenova, Y and Pribora, V. and Riisager, K. and Scheit, H. and Schneider, R. and Schmidt, K and Schrieder, G and Simon, H. and Sitar, B. and Stolz, A. and Strmen, P. and Sümmerer, K. and Szarka, I. and Wan, S and Weick, H. and Zhukov, M}},
  issn         = {{0370-2693}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{1-2}},
  pages        = {{36--41}},
  publisher    = {{Elsevier}},
  series       = {{Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}},
  title        = {{Experimental evidence for the <sup>8</sup>B ground state configuration}},
  url          = {{http://dx.doi.org/10.1016/S0370-2693(02)01245-5}},
  doi          = {{10.1016/S0370-2693(02)01245-5}},
  volume       = {{529}},
  year         = {{2002}},
}