Recently, Niu et aLl> have found an interesting event in the jet showers of cosmic ray experiment, which suggests the possible existence of a new particle not belonging to the conventional elementary particles. In this note we shall present an analysis and an interpretation of this particle.
1357We investigate the hadroproduction of <{; and other heavy particles by taking account of QCD effect on scale breaking of the constituent distribution functions. It is clarified that the charm quark fusion mechanism dominates the <{; production in ISR energy region as well as the gluon fusion one. The ratio ri(
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