Charmonium suppression in ultra-relativistic proton-proton collisions at LHC energies: A hint for QGP in small systems

Abstract

Proton-proton ($pp$) collision has been considered as a baseline to study the system produced in relativistic heavy-ion (AA) collisions with the basic assumption that no thermal medium is formed in $pp$ collisions. This warrants a cautious analysis of the system produced in $pp$ collisions at relativistic energies.In this work we investigate the charmonium suppression in $pp$ collisions at $\sqrt{s}=5.02,7$ and $13$ TeV energies. Further, charmonium suppression has been studied for various event multiplicities and transverse momenta by including the mechanisms of color screening, gluonic dissociation, collisional damping along with regeneration due to correlated $c\bar{c}$ pairs. Here we obtain a net suppression of charmonia at high-multiplicity events indicating the possibility of the formation of quark-gluon plasma in $pp$ collisions.

Same as the published version in Eur. Phys. J C

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Cited by in corpus (8)

• Dynamics of Hot QCD Matter -- Current Status and Developments
• Impact of vorticity and viscosity on the hydrodynamic evolution of hot QCD medium
• Impact of Medium Anisotropy on Quarkonium Dissociation and Regeneration
• Does Quarkonia Suppression serve as a probe for the deconfinement in small systems?
• Exploring QGP-like phenomena with Charmonia in $p+p$ collisions at $\sqrt{s}=13$ TeV
• Applicability of Hydrodynamics in Hadronic Phase of Heavy-Ion Collisions
• Spin alignment of Quarkonia: A Possible Probe of Deconfined QCD matter in Pb+Pb Collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• Dissociation-driven quarkonium spin alignment in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV