Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-04-23
Physics
High Energy Physics
High Energy Physics - Phenomenology
18 pages. Some changes in the text; experimental suggestions collected in a special subsection, references added and refreshed
Scientific paper
To understand the whole set of positive and null data on the Theta+(1530)-production, we suggest the hypothesis that multiquark hadrons are mainly generated from many-quark states, which emerge either as short-term hadron fluctuations, or as hadron remnants in hard processes. This approach allows us to describe both non-observation of the Theta+ in current null experiments and peculiar features of its production in positive experiments. Further, we are able to propose new experiments that might be decisive for the problem of the Theta+ existence. Distributions of the Theta+ in such experiments can give important information both on higher Fock components of conventional hadrons and about structure and hadronization properties of hadron remnants produced in hard processes. We also explain that description of multiquark hadrons may require a modified form of the constituent quark model, with quark masses and couplings being intermediate between their values for the familiar constituent quarks and the current ones.
Azimov Ya.
Goeke Klaus
Strakovsky Igor I.
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