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arXiv · 1706.05937

Proton structure fluctuations: from HERA to the LHC

Heikki Mäntysaari·Björn Schenke·Chun Shen·Prithwish Tribedy
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Abstract

We constrain the amount of event-by-event fluctuations of the proton by comparing with the HERA coherent and incoherent diffractive $J/\Psi$ production data. We find that the HERA measurements prefer large geometric fluctuations. We then include the constrained fluctuating proton shapes in viscous hydrodynamical simulations of the proton-nucleus collisions at $\sqrt{s_{NN}}=5.02$ TeV, and find a good description of the mean transverse momentum and flow harmonics measured at the LHC.

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Heikki Mäntysaari, Björn Schenke, Chun Shen, Prithwish Tribedy. 2017-06-19. Proton structure fluctuations: from HERA to the LHC. https://arxiv.org/abs/1706.05937

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