Threshold photo-production of $J/\Psi$ off light nuclei

Fangcheng He; Ismail Zahed

Threshold photo-production of $J/\Psi$ off light nuclei

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arxiv 2407.09991 v1 pith:LQABOBMB submitted 2024-07-13 nucl-th hep-ph

Fangcheng He , Ismail Zahed This is my paper

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keywords deuterongluonichelium-4lightnucleiproductionthresholdamplitude

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abstract

We analyze threshold photoproduction of heavy mesons off a deuteron and Helium-4, using the QCD factorization method. Assuming large skewness, the production amplitude is dominated by the leading twist-2 gluonic energy-momentum tensor (EMT). We use our recent results for the gluonic gravitational form factors of light nuclei in the impulse approximation, to estimate the differential cross sections for $J/\Psi$ production off a deuteron and Helium-4 at current electron facilities.

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