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Jun 24 – 28, 2019
US/Eastern timezone
5th International Conference on the Initial Stages in High-Energy Nuclear Collisions

NLO+NLLx computation of inclusive photon+dijet production in e+A DIS as a probe of gluon saturation

Jun 25, 2019, 4:20 PM
8th floor Theory Center (Pupin)

8th floor Theory Center


Poster Forward and saturation physics Posters


Kaushik Roy (Stony Brook University and Brookhaven National Laboratory)


We present the first computation of the NLO photon+dijet impact factor in e+A DIS at small $x$. When combined with the recent derivation of JIMWLK small $x$ evolution to NLL$x$ accuracy, this result provides us with a prediction of the photon+dijet cross-section in e+A DIS to
O($\alpha_S^3 \ln(1/x)$) accuracy. The comparison of this result with photon+dijet measurements at a future EIC therefore provides a precision test of the systematics of gluon saturation. In the soft photon limit, one obtains a compact representation of the state-of-the art results for fully inclusive DIS. The novel techniques developed in this computation can also be applied to promote existing LO computations of photon+dijet production in p+A collisions to NLO+NLL$x$ accuracy.

Primary author

Kaushik Roy (Stony Brook University and Brookhaven National Laboratory)


Presentation materials