Abstract
We report on the first measurement of the triangular v3, quadrangular v4, and pentagonal v5 charged particle flow in Pb-Pb collisions at sqrt(s(NN)) = 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.
Highlights
Pthbe-PfibrsctomlliesaisounrsematepntffisffiffiNoffiffiNffifffiffi the triangular v3, quadrangular v4, and pentagonal v5 charged 1⁄4 2:76 TeV measured with the ALICE detector at the CERN
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 this Letter we report the first measurement of the anisotropic flow coefficients v3, v4, and v5 of charged ppaerrtinculecsleionn Ppba-iPr bpcffisffioffiNffiffilNffilffiffiis1⁄4ion2s:7a6t the center TeV, with of mass energy the ALICE detector [18,19,20]
Summary
Pthbe-PfibrsctomlliesaisounrsematepntffisffiffiNoffiffiNffifffiffi the triangular v3, quadrangular v4, and pentagonal v5 charged 1⁄4 2:76 TeV measured with the ALICE detector at the CERN. 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. Én are not known experimentally, the anisotropic flow coefficients are estimated from measured correlations between the observed particles.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
