Decay of charmed hadrons -- SHARE with CHARM

In Pb--Pb collisions at LHC, a rather large number of charm--anti-charm quark pairs, $N_{c\overline{c}}\equiv dN_{c\overline{c}}/dy$, is produced in initial hard parton collisions before the QGP phase emerges. Given $N_{c\overline{c}}$, we predict yields of all charmed hadrons using statistical hadronization method for $\sqrt{s_{NN}}=2.76\,\mathrm{TeV}$ and foreseen $\sqrt{s_{NN}}=5.5\,\mathrm{TeV}$, where, respectively, $N_{c\overline{c}}=56$ and $N_{c\overline{c}}=90$ has been predicted for 0--5\% centrality. Based on experimental decay data, symmetry principles and plausibility arguments, we prepare a complete charmed hadron decay table. The CHARM module adds charm decay hadron multiplicity into SHARE, the statistical hadronization model implementation we use. SHARE with CHARM utility uses $N_{c\overline{c}}$ as an additional fit parameter when analyzing hadron production in heavy--ion collisions. We quantify the charm hadron decay contributions in the final hadron yields. We find that about 20\% of charm is bound to strangeness and, as a consequence, charm decays contribute a significant fraction of multistrange hadron yields. Up to 20\% of $\phi$, 15\% of $\Xi$ and 15\% of $\Omega$ yield is produced directly by charm decays, whereas non--strange particles are affected less.