Charm and longitudinal structure functions with the Kharzeev-Levin-Nardi model

Details Charm and longitudinal structure functions with the Kharzeev-Levin-Nardi model Charm and longitudinal structure functions with the Kharzeev-Levin-Nardi model

2008-12-03

arxiv.org/abs/0812.0780v2

Phys.Rev.C79:035211,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 7 figures

Scientific paper

10.1103/PhysRevC.79.035211

We use the Kharzeev-Levin-Nardi model of the low $x$ gluon distributions to fit recent HERA data on charm and longitudinal structure functions. Having checked that this model gives a good description of the data, we use it to predict $F^c_2$ and $F_L$ to be measured in a future electron-ion collider. The results interpolate between those obtained with the de Florian-Sassot and Eskola-Paukkunen-Salgado nuclear gluon distributions. The conclusion of this exercise is that the KLN model, simple as it is, may still be used as an auxiliary tool to make estimates both for heavy ion and electron-ion collisions.

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