• Open Access

Intriguing similarities of high-pT particle production between pp and AA collisions

Aditya Nath Mishra, Antonio Ortiz, and Guy Paić
Phys. Rev. C 99, 034911 – Published 27 March 2019

Abstract

In this paper we study the particle production at high transverse momentum (pT>8GeV/c) in both pp and Pb-Pb collisions at LHC energies. The characterization of the spectra is done using a power-law function and the resulting power-law exponent (n) is studied as a function of xT for minimum-bias pp collisions at different s. The functional form of n as a function of xT exhibits an approximate universal behavior. pythia 8.212 reproduces the scaling properties and therefore, it is used to study the multiplicity-dependent particle production. Going from low to high multiplicities, the power-law exponent decreases. A similar behavior is also observed in heavy-ion collisions when one studies the centrality-dependent particle production. The interpretation of heavy-ion results requires the quantification of the impact of this correlation (multiplicity and high pT) on jet-quenching observables.

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  • Received 3 July 2018
  • Revised 31 October 2018

DOI:https://doi.org/10.1103/PhysRevC.99.034911

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Aditya Nath Mishra*, Antonio Ortiz, and Guy Paić

  • Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Apartado Postal 70-543, México Distrito Federal 04510, México

  • *Aditya.Nath.Mishra@cern.ch
  • Antonio.Ortiz.Velasquez@cern.ch
  • Guy.Paic@cern.ch

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Issue

Vol. 99, Iss. 3 — March 2019

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