2002/10/09 by Michail P. Rekalo Egle Tomasi-Gustafsson
Physics and Astronomy · #nucl-th
published as Eur.Phys.J. A16 (2003) 575-581 · 11 page, 3 figures
arxiv created 2002/10/09 · arxiv updated 2009/12/01
The associative charm particles production in nucleon-nucleon collisions N+N→ Λc(Σc)+D+N, is described in a general way and the spin and isospin structure of the corresponding matrix elements are derived. Using an analogy with strange particle (ΛK)-production, the D-meson exchange model is considered in detail. Estimations of the energy behavior of the threshold cross sections show a large dependence on the form of the phenomenological hadron form factors and indicate that, at threshold, the cross section is three order of magnitude smaller than for strange particle production.