Parton energy loss in the mini quark-gluon plasma and jet quenching in proton-proton collisions

Abstract

We evaluate the medium suppression of light hadron spectra in $pp$ collisions at RHIC and LHC energies in the scenario with formation of a mini quark-gluon plasma. We find a significant suppression effect. For $p_T\sim 10$ GeV we obtained the reduction of the spectra by $\sim [20-30,25-35,30-40]$ % at $\sqrt{s}=[0.2,2.76,7]$ TeV. We also discuss how this phenomenon may change the predictions for the nuclear modification factors for $AA$ and $pA$ collisions.

21 pages, 5 figures, 1 reference added. To appear in JPhys. G

References in corpus (11)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Jet physics in heavy-ion collisions
• Hadron spectra and elliptic flow for 200 A GeV Au+Au collisions from viscous hydrodynamics coupled to a Boltzmann cascade
• Confronting current NLO parton fragmentation functions with inclusive charged-particle spectra at hadron colliders
• Parton energy loss in an expanding quark-gluon plasma: Radiative vs collisional
• How does transverse (hydrodynamic) flow affect jet-broadening and jet-quenching ?
• Jet quenching with running coupling including radiative and collisional energy losses
• Anomalous mass dependence of radiative quark energy loss in a finite-size quark-gluon plasma
• Hyperon/meson ratios in rare high-multiplicity $pp$ collisions at energies available at the Large Hadron Collider, and potential signatures for mini-quark-gluon plasma formation
• Single inclusive pion pT-spectra in proton-proton collisions at sqrt(s) = 22.4GeV: data versus perturbative QCD calculations
• KNO scaling from a nearly Gaussian action for small-x gluons

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