A ug 1 99 7 Exclusive η c photo - and electroproduction at HERA as a possible probe of the odderon singularity in QCD
نویسندگان
چکیده
Exclusive η c photo-and electroproduction at HERA as a possible probe of the odderon singularity in QCD. Abstract Theory and phenomenology of the η c photo-and electroproduction is developed from the point of view of probing the odderon singularity in QCD which corresponds to the three gluon exchange mechanism. This mechanism leads to the cross-sections which are independent of W 2 for the exchange of three non-interacting gluons or exhibit increase with increasing W 2 (or 1/x) for the odd-eron intercept above unity. The η c electroproduction in the three gluon exchange mechanism is shown to be entirely controlled by the transversely polarised virtual photons. The magnitude of the η c photoproduction cross-section is estimated to be around 11–45 pb. The t-dependence of the differential cross-section is also discussed.
منابع مشابه
Exclusive ηc photo- and electroproduction at HERA as a possible probe of the odderon singularity in QCD.
Exclusive η c photo-and electroproduction at HERA as a possible probe of the odderon singularity in QCD. Abstract Theory and phenomenology of the η c photo-and electroproduction is developed from the point of view of probing the odderon singularity in QCD which corresponds to the three gluon exchange mechanism. This mechanism leads to the cross-sections which are independent of W 2 for the exch...
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