Collaboration, ALICE;
(2011)
Higher harmonic anisotropic flow measurements of charged particles in Pb-Pb collisions at 2.76 TeV.
Physical Review Letters
, 107
(3)
, Article 032301. 10.1103/PhysRevLett.107.032301.
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Abstract
We report on the first measurement of the triangular v3, quadrangular v4, and pentagonal v5 charged particle flow in Pb-Pb collisions at 2.76 TeV measured with the ALICE detector at the CERN Large Hadron Collider. We show that the triangular flow can be described in terms of the initial spatial anisotropy and its fluctuations, which provides strong constraints on its origin. In the most central events, where the elliptic flow v2 and v3 have similar magnitude, a double peaked structure in the two-particle azimuthal correlations is observed, which is often interpreted as a Mach cone response to fast partons. We show that this structure can be naturally explained from the measured anisotropic flow Fourier coefficients.
| Type: | Article |
|---|---|
| Title: | Higher harmonic anisotropic flow measurements of charged particles in Pb-Pb collisions at 2.76 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.107.032301 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.107.032301 |
| Language: | English |
| Additional information: | © 2011 CERN, for the ALICE Collaboration |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1374553 |
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