Correlation between heavy flavour production and multiplicity in string fusion approach
Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034 Russia
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Published online: 5 December 2017
The multiplicity dependence of heavy flavour production in pp-collisions at LHC energies is studied in the framework of string fusion approach. We applied a Monte Carlo model [1, 2], with the string configurations simulating event-by-event. We assumed that the heavy flavour yield is proportional to the number of initial strings, whereas a total charged particle multiplicity is influenced by the string fusion process and can be obtained according to the standard string fusion prescriptions. We show that under this assumption the faster-than-linear growth of the open charm production, observed in experiment , can be related to the reduction of the total multiplicity due to string overlapping and fusion. The influence of this effect on forward-backward correlations involving heavy flavours is also discussed.
© The Authors, published by EDP Sciences, 2017
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