Open charm production in binary reactions within the Regge theory

Abstract

We analyze the open charm production in the binary $\pi p\to \bar{D}{\Lambda }_c$ and $\pi (\rho )J/\psi$ reactions within the Regge theory including the absorption corrections. The calculations show that the total cross section is about a few $\mu$b for the first processes and a few mb for the second reactions at energy close to the threshold. Then it decreases with increasing energy according to the true Regge asymptotics.

Comments: 6 pages, 3 figures; published in the Proceedings of the International Conference ``I. Ya. Pomeranchuk and physics at the turn of centuries'', Moscow, Russia, January 24-28, 2003. Misprints corrected, reference and new figures added. Revised version contents an improved calculation of the absorption corrections