https://doi.org/10.1140/epjc/s10052-019-7097-5
Regular Article - Theoretical Physics
Non-eikonal corrections to multi-particle production in the color glass condensate
1
Instituto Galego de Física de Altas Enerxías IGFAE, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Galicia, Spain
2
National Centre for Nuclear Research, 00-681, Warsaw, Poland
* e-mail: nestor.armesto@usc.es
Received:
19
February
2019
Accepted:
1
July
2019
Published online:
16
July
2019
We consider the non-eikonal corrections to particle production in the color glass condensate stemming from the relaxation of the shockwave approximation for the target that acquires a finite longitudinal dimension. We derive a modified expression of the Lipatov vertex which takes into account this finite target width. This expression is employed to compute single, double and triple gluon production in the Glasma graph limit valid for the scattering of two dilute objects, at all orders in the expansion in the number of colors. We justify and generalize previous results, and discuss the possible implications on two particle correlations of these non-eikonal corrections that induce differences between the away- and near-side peaks.
© The Author(s), 2019