arXiv:1106.4356·v2·High Energy Physics — Phenomenology
Eccentricity and elliptic flow in pp collisions at the LHC
E. Avsar🇺🇸 · Y. Hatta🇯🇵 · C. Flensburg🇸🇪 · J. Y. Ollitrault🇫🇷 · T. Ueda🇩🇪
Abstract
High-multiplicity proton-proton collisions at the LHC may exhibit collective phenomena such as elliptic flow. We study this issue using DIPSY, a brand-new Monte Carlo event generator which features almost-NLO BFKL dynamics and describes the transverse shape of the proton including all fluctuations. We predict the eccentricity of the collision as a function of the multiplicity and estimate the magnitude of elliptic flow. We suggest that flow can be signaled by a sign change in the four-particle azimuthal correlation.
Comments: 4 pages, talk given at Quark Matter 2011. v2: added a new plot of the four-particle nonflow correlation in DIPSY vs. a rough parametrization of the preliminary ALICE data