PoS - Proceedings of Science
Volume 364 - European Physical Society Conference on High Energy Physics (EPS-HEP2019) - Heavy Ion Physics
Inclusive and diffractive dijet photoproduction in UPCs at the LHC in NLO QCD
M. Klasen* and V. Guzey
Full text: pdf
Pre-published on: October 08, 2020
Published on: November 12, 2020
We present a next-to-leading order QCD calculation of inclusive
dijet photoproduction in ultraperipheral Pb-Pb collisions at the LHC and show
that the results agree very well with various kinematic distributions measured
by the ATLAS collaboration. The effect of including these data in nCTEQ or EPPS16
nuclear parton density functions (nPDFs) is then studied using the Bayesian
reweighting technique. For an assumed total error of 5\% on the final data, its
inclusion would lead to a significant reduction of the nPDF uncertainties of up to
a factor of two at small values of the parton momentum fraction. As an outlook,
we discuss future analyes of diffractive nPDFs, which are so far completely unknown.
DOI: https://doi.org/10.22323/1.364.0302
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