Eur. Phys. J. Plus (2023) 138: 367
https://doi.org/10.1140/epjp/s13360-023-03976-5

Regular Article

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

¹ Department of Phyiscs, EHEP group, COMSATS University Islamabad Campus, 4000, Islamabad, Pakistan
² Physical-Technical Institute of Uzbekistan, Academy of Sciences, Tashkent, Uzbekistan
³ National University of Science and Technology MISIS (NUST MISIS), Almalyk branch, Almalyk, Uzbekistan

^a uzma.tabassam@comsats.edu.pk

Received: 8 February 2023
Accepted: 14 April 2023
Published online: 29 April 2023

Abstract

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 ${\mathrm{\Lambda }}_c^{+}$ hadrons, in proton-proton collisions at $\sqrt{s}$ = 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 ${\mathrm{\Lambda }}_c^{+}$ 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 $q(mesons)>q(baryons)$ 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 $\sqrt{s}$ = 13 TeV.