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Experimental and theoretical evidences for an intermediate $\sigma$-dressed dibaryon in the NN interaction

Authors :
Kukulin, V. I.
Grabmayr, P.
Faessler, A.
Abraamyan, Kh. U.
Bashkanov, M.
Clement, H.
Skorodko, T.
Pomerantsev, V. N.
Source :
Annals Phys.325:1173-1189,2010
Publication Year :
2008

Abstract

Numerous theoretical and experimental arguments are presented in favor of the generation of intermediate $\sigma$-dressed dibaryon in $NN$ interaction at intermediate and short distances. We argue that this intermediate dibaryon can be responsible for the strong intermediate-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 $\sigma$-dressing of the dibaryon is identical to that which explains the Roper resonance structure, its dominant decay modes and its extraordinary low mass. A similar transformation mechanism from the glue to the scalar field was discovered in $J/\Psi$ decays. The new experimental data on 2$\pi$-production in the scalar-isoscalar channel produced in $pn$- and $pd$-collisions and in particular the very recent data on $\gamma\gamma$ correlations in $p$C and $d$C scattering in the GeV region seems to corroborate the existence of the $\sigma$-dressed dibaryon in two- and three nucleon interactions.<br />Comment: 14 pages,4 figures

Subjects

Subjects :
Nuclear Theory

Details

Database :
arXiv
Journal :
Annals Phys.325:1173-1189,2010
Publication Type :
Report
Accession number :
edsarx.0807.0192
Document Type :
Working Paper
Full Text :
https://doi.org/10.1016/j.aop.2010.03.011