Abstract
Using a multiphase transport model (AMPT) we calculate the elliptic and triangular Fourier coefficients of the two-particle azimuthal correlation function in proton-nucleus (-Pb) and peripheral nucleus-nucleus (Pb-Pb) collisions. Our results for are in a good agreement with the CMS data collected at the Large Hadron Collider. The coefficient is very well described in -Pb collisions and is underestimated for higher transverse momenta in Pb-Pb interactions. The characteristic mass ordering of in -Pb is reproduced, whereas for , this effect is not observed. We further predict the pseudorapidity dependence of and in -Pb and observe that both are increasing when going from a proton side to a Pb-nucleus side. Predictions for the higher-order Fourier coefficients, and , in -Pb are also presented.
- Received 21 July 2014
DOI:https://doi.org/10.1103/PhysRevLett.113.252301
© 2014 American Physical Society