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[en] A point of common interest for both dibaryons - bound or resonant states of two baryons - and baryonia (mesons coupled predominantly to the baryon-antibaryon channel and much lesser to the mesonic ones), is a question mark about their nature; whether they are resonant states due to long- or medium-range meson exchange conventional forces, or short-range color forces of 'non-conventional' nature. This lecture summarizes more than twenty years of theoretical and experimental activity on this subject. 123 refs.; 19 figs.; 5 tabs
[en] An analysis of the experimental search for supernarrow dibaryons (SNDs) have been performed. The sum rules for SND masses have been constructed. The calculated values of the SND masses are in good agreement with the existing experimental values. It has been shown that the SND decay leads to the formation of N * with small masses. Experimental observations of N * is an additional confirmation of the possibility of the SND existence.
[en] A review is given about the long-standing search for dibaryons, i.e. six-quark objects, from the early days until present, when the first dibaryon resonance has been established, which has the potential of constituting a compact six-quark object.
[en] In the world of quantum physics, the problems is that all matter seems to be composed of just two of the six available kinds of quarks. However, a team of physicists at the Brookhaven national Laboratory reported that by sifting through a beam of neutral particles, they had recorded two possible sightings of the lighest form of strange matter known as an H dibaryon. This article discusses both the background for this discovery, the events surrounding it and the possibilities of the future