Charged-hadron suppression in Pb+Pb and Xe+Xe collisions measured with the ATLAS detector

Abstract

The ATLAS detector at the LHC recorded 0.49nb${}^{-1}$ of Pb+Pb collisions and 25pb${}^{-1}$ of $pp$ collisions, both at the center-of-mass energy 5.02TeV per nucleon pair. Recently, ATLAS also recorded 3$\mu$b${}^{-1}$ of Xe+Xe collisions at the center-of-mass energy 5.44TeV, which provides a new opportunity to study the system-size dependence of the charged-hadron production in heavy-ion collisions. The large acceptance of the ATLAS detector allows to measure the spectra of charged hadrons in a wide range of pseudorapidity and transverse momentum. The nuclear modification factors $R_{\mathrm{AA}}$ are constructed as a ratio of the spectra measured in Pb+Pb or Xe+Xe collisions to that measured in $pp$ collisions. The $R_{\mathrm{AA}}$ obtained in the two systems are presented for different centrality intervals and the results are discussed.

4 pages, 5 figures, presented at Quark Matter 2018

References in corpus (3)

• An Introduction to PYTHIA 8.2
• Glauber Modeling in High Energy Nuclear Collisions
• Jet physics in heavy-ion collisions

Cited by in corpus (3)

• Quantum field theory with the generalized uncertainty principle I: scalar electrodynamics
• Quantum field theory with the generalized uncertainty principle II: Quantum Electrodynamics
• Relativistic Generalized Uncertainty Principle and Its Implications