IHEP 98 - 58
Yu.Arestov (IHEP, Protvino, Russia), F.R.A.Simao ( CBPF, Brazil)
Polarization properties of diffractively produced Lambdac+
Protvino, 1998.- p.8, figs. 4, refs.:10.

The Pomeron-gluon-gluon interaction is considered in the QCD-based model for the charmed baryon production in the process ${\rm Pomeron} \,+\, p \to \Lambda_{c}^+ \,+\, X$. The polarization of the produced heavy quark is induced effectively through the non-perturbative long-range interaction with the gluon field of the type $[\vec \sigma \cdot {\rm rot} \cal A ]$. The $x_F$-dependence of $\Lambda_{c}^+$ polarization, $P_{\Lambda_{c}^+}(x_F,p_T)$, has been studied. Its absolute value depends on the model parameter $a$ and it appears to be sizeable in the wide range of $a$ values: when $a$ ranges from 0.1 to 1.0, the polarization $P_{\Lambda_{c}^+}(x_F,p_T)$ varies from --0.2 to --0.5 at $x_F \sim 0.5$ and $p_T$ in the interval 1 - 2 GeV/c.

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