Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC

Summary, in English

The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at sNN=2.76 TeV and p-Pb collisions at sNN=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. These correlations are measured for the second, third and fourth order flow vector in the pseudorapidity region |η| < 0.8 as a function of centrality and transverse momentum pT using two observables, to search for evidence of pT-dependent flow vector fluctuations. For Pb-Pb collisions at 2.76 TeV, the measurements indicate that pT-dependent fluctuations are only present for the second order flow vector. Similar results have been found for p-Pb collisions at 5.02 TeV. These measurements are compared to hydrodynamic model calculations with event-by-event geometry fluctuations in the initial state to constrain the initial conditions and transport properties of the matter created in Pb–Pb and p–Pb collisions.[Figure not available: see fulltext.]. © 2017, The Author(s).

• Author: S Acharya; D. Adamova; Jonatan Adolfsson; M.M Aggarwal; G Aglieri Rinella; M. Agnello; Peter Christiansen; Martin Ljunggren; Anders Oskarsson; David Silvermyr; Evert Stenlund; Vytautas Vislavicius
• Department/s: Particle and nuclear physics
• Publishing year: 2017
• Language: English
• Pages: 32-32
• Publication/Series: Journal of High Energy Physics
• Volume: 2017
• Issue: 9
• Links: http://dx.doi.org/10.1007/JHEP09(2017)032
• Document type: Journal article
• Publisher: Springer
• Topic: Subatomic Physics
• Keywords: Heavy Ion Experiments
• Status: Published
• ISBN/ISSN/Other: ISSN: 1029-8479