By the same authors

From the same journal

Experimental and theoretical indications for an intermediate σ-dressed dibaryon in the NN interaction

Research output: Contribution to journalArticle

Published copy (DOI)


  • V. I. Kukulin
  • P. Grabmayr
  • A. Faessler
  • Kh U. Abraamyan
  • M. Bashkanov
  • H. Clement
  • T. Skorodko
  • V. N. Pomerantsev


Publication details

JournalAnnals of Physics
DatePublished - 1 Jun 2010
Issue number6
Number of pages17
Pages (from-to)1173-1189
Original languageEnglish


Numerous theoretical and experimental arguments in favor of the generation of intermediate σ-dressed dibaryon in NN interaction at middle and short distances are presented. We argue that this intermediate dibaryon should be responsible for the strong middle-range attraction and the short-range repulsion in the NN interaction, and also for the short-range correlations in nuclei. The suggested mechanism for the σ-dressing of the dibaryon is identical to that which explains the Roper-resonance structure, its dominant decay mode and its extraordinary low mass. It is arguing that the (partial) chiral symmetry restoration effects, common for the Roper resonance and dressed dibaryon, are responsible for strong renormalizing of their masses and widths and the observed σ-meson mass and decay width as well. The new experimental data on 2 σ-production in the scalar-isoscalar channel produced in pn- and pd-collisions and recent data on γγ correlations in pC and dC scattering in the GeV region seems to corroborate the existence of the σ-dressed dibaryon in two- and three-nucleon interactions. A similar transformation mechanism from the glue to the scalar field can be valid also in some J/ψ decays and in enormous σ-meson production in central pp collisions at high energies.

    Research areas

  • ABC puzzle, Dibaryon, Meson cloud, Nucleon-nucleon interaction, Quark model, Quarks

Discover related content

Find related publications, people, projects, datasets and more using interactive charts.

View graph of relations