CGC beyond eikonal accuracy: finite width target effects - INSPIRE

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CGC beyond eikonal accuracy: finite width target effects

Mar 21, 2016

6 pages

Part of Proceedings, 6th International Conference on Physics Opportunities at an ElecTron-Ion Collider (POETIC 2015) : Palaiseau, France, September 7-11, 2015

Published in:

EPJ Web Conf. 112 (2016) 02001

Contribution to:

- POETIC6

Published: Mar 21, 2016

DOI:

10.1051/epjconf/201611202001

reference search1 citation

Citations per year

Abstract: (EDP Sciences)

We present a method to systematically include the corrections to the eikonal approximation that are associated with the finite width of the target. The retarded gluon propagator in background field is calculated at next-to-next-to-eikonal (NNE) accuracy by using this method. The corrections to the strict eikonal limit of the gluon propagator are found to be Wilson lines decorated by gradients of the background field of the target. The result is then applied to single inclusive gluon production and to single transverse spin asymmetry for a polarized target in pA collisions.

approximation: eikonal
width: finite
gluon: propagator
gluon: production
spin: transverse
spin: asymmetry
p nucleus: scattering
background field
color glass condensate
polarized target

References(9)

Figures(0)

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