Search for superfragments and measurement of the production of hyperfragments in neutrino-nucleus interactions

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Onengut G., van Dantzig R., de Jong M., Oldeman R., Guler M., Kose U., ...More

NUCLEAR PHYSICS B, vol.718, pp.35-54, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 718
  • Publication Date: 2005
  • Doi Number: 10.1016/j.nuclphysb.2005.04.029
  • Journal Name: NUCLEAR PHYSICS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.35-54
  • Çukurova University Affiliated: Yes


A systematic search for superfragments (charmed nuclei) has been performed in 22 200 neutrinoemulsion interactions obtained with the CHORUS experiment making use of automatic off-line image analysis. The absence of candidates provides an upper limit for the superfragment production rate of 1.9 x 10(-4) (90% C.L.) relative to neutrino charged-current interactions at an average neutrino energy of 27 GeV. In the same analysis 28 hyperfragment decays were found. For the first time, a production rate of hyperfragments in neutrino-emulsion interactions was obtained. The value of the hyperfragment production rate relative to the neutrino charged-current cross-section was found to be (2.0 +/- 0.4(stat) +/- 0.3 (syst)) x 10(-3). (c) 2005 Elsevier B.V. All rights reserved.