Study of multiplicity dependence in Charmed Hadrons production in pp collisions at LHC energies

We report the analysis by performing the fitting on the experimental p(T) spectra of heavy flavour hadrons, including prompt D-0, D-s(+), and Lambda(+)(c) hadrons, in proton-proton collisions at root s = 13 TeV at midrapidity (|y| < 0.5), using the thermodynamically consistent Tsallis distribution function. The data for the fitting is taken from the ALICE experiment at LHC. The quality of the Tsallis fits with fixed mu=0 chemical potential has proved to be significantly better than those with fitted mu value. The extracted nonextensivity parameter q values for D-0 and D-s(+) mesons proved to be compatible with those obtained earlier for the charged pions and kaons in high-energy proton-proton collisions. The extracted q values for Lambda(+)(c) baryons are found to be compatible with those obtained earlier for the protons and antiprotons in high-energy proton-proton collisions. We have confirmed the relation q(mesons) > q(bar yons) for heavy flavor hadrons, obtained for light hadrons in high-energy pp collisions. The effective Tsallis temperature for the heavy flavor hadrons increases with multiplicity in proton-proton collisions at root s = 13 TeV.

Automated summary

This study reports the analysis of fitting the experimental p(T) spectra of heavy flavour hadrons, including D-0, D-s(+), and Lambda(+)(c) hadrons, using the thermodynamically consistent Tsallis distribution function. The fitting is based on data from the ALICE experiment at LHC. The results show that Tsallis fits with fixed mu=0 have better quality than those with fitted mu value. The extracted q values for different hadrons are found to be compatible with previous results for light hadrons in high-energy proton-proton collisions. The effective Tsallis temperature for heavy flavor hadrons increases with multiplicity in proton-proton collisions at root s = 13 TeV.