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arXiv · 1603.02143

CGC/saturation approach for high energy soft interactions: $\mathbf{v_2}$ in proton-proton collisions

E. Gotsman·E. Levin·U. Maor·S. Tapia
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Abstract

In this paper we continue our program to construct a model for high energy soft interactions, based on the CGC/saturation approach. We demonstrate that in our model which describes diffractive physics as well as multi-particle production at high energy, the density variation mechanism leads to the value of $v_2$ which is about $60\% ÷70\%$ of the measured $v_2$. Bearing in mind that in CGC/saturation approach there are two other mechanisms present: Bose enhancement in the wave function and local anisotropy, we believe that the azimuthal long range rapidity correlations in proton-proton collisions stem from the CGC/saturation physics, and not from quark-gluon plasma production.

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E. Gotsman, E. Levin, U. Maor, S. Tapia. 2016-03-07. CGC/saturation approach for high energy soft interactions: $\mathbf{v_2}$ in proton-proton collisions. https://doi.org/10.1103/physrevd.93.074029

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