Elliptic and Triangular Flow and their Correlation in Ultrarelativistic High Multiplicity Proton Proton Collisions at 14 TeV
Abstract
The spatial configuration of initial partons in high-multiplicity proton-proton scatterings at 14 TeV is assumed as three randomly positioned "hot spots". The parton momentum distribution in the hot spots is calculated by HIJING2.0 with some modifications. This initial condition causes not only large eccentricity ε2 but also triangularity ε3 and the correlation of ε2-ε3 event-plane angles. The final elliptic flow v2, triangular flow v3, and the correlation of v2-v3 event-plane angles are calculated by using the parton cascade model BAMPS to simulate the space-time parton evolution. Our results show that the v2-v3 correlation is different from that of ε2-ε3. This finding indicates that translations of different Fourier components of the initial spatial asymmetry to the final flow components are not independent. A dynamical correlation between the elliptic and triangular flow appears during the collective expansion.
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