An explanation why the Theta+ is seen in some experiments and not in others

Details An explanation why the Theta+ is seen in some experiments and not in others An explanation why the Theta+ is seen in some experiments and not in others

2007-08-20

arxiv.org/abs/0708.2675v1

Phys.Rev.D76:074013,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

The shortened and slightly modified version of arXiv:0704.3045, accepted for publication in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.76.074013

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. Studies of properties and distributions of the Theta+ in such experiments can give important information on the structure of both conventional and multiquark hadrons. It would provide better insight into how QCD works.

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