Azimuthal correlations of heavy quarks in Pb + Pb collisions at s=2.76 TeV at the CERN Large Hadron Collider

Marlene Nahrgang, Jörg Aichelin, Pol Bernard Gossiaux, and Klaus Werner
Phys. Rev. C 90, 024907 – Published 18 August 2014

Abstract

In this paper we study the azimuthal correlations of heavy quarks in Pb+Pb collisions with s=2.76 TeV at the Large Hadron Collider. Due to the interaction with the medium, heavy quarks and antiquarks are deflected from their original direction and the initial correlation of the pair is broadened. We investigate this effect for different transverse momentum classes. Low-momentum heavy-quark pairs lose their leading-order back-to-back initial correlation, while a significant residual correlation survives at large momenta. Due to the larger acquired average deflection from their original directions the azimuthal correlations of heavy-quark pairs are broadened more efficiently in a purely collisional energy loss mechanism compared to that including radiative corrections. This discriminatory feature survives when next-to-leading-order production processes are included.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
4 More
  • Received 24 May 2013
  • Revised 15 July 2014

DOI:https://doi.org/10.1103/PhysRevC.90.024907

©2014 American Physical Society

Authors & Affiliations

Marlene Nahrgang1,2,*, Jörg Aichelin1, Pol Bernard Gossiaux1, and Klaus Werner1

  • 1SUBATECH, UMR 6457, Université de Nantes, Ecole des Mines de Nantes, IN2P3/CNRS. 4 rue Alfred Kastler, 44307 Nantes Cedex 3, France
  • 2Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Strasse 1, 60438 Frankfurt am Main, Germany

  • *nahrgang@subatech.in2p3.fr

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 90, Iss. 2 — August 2014

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×