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The production of Charmonium states $\etacp$ and $\hc$ at fixed-targetexperiment of $pN$ collisions at HERA-$B$ is considered. It is found that theHERA-$B$ at DESY is one of the best machines in further confirming anddetecting these two kinds of Charmonia in the near future.Comment: Typos corrected, comments and references added. RevTex. To appear in  Phys. Rev.

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

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