SciPost logo

SciPost Submission Page

Impact of LHC dijet production in pp and pPb collisions on the nNNPDF2.0 nuclear PDFs

by Rabah Abdul Khalek

This is not the latest submitted version.

This Submission thread is now published as

Submission summary

Authors (as registered SciPost users): Rabah Abdul Khalek
Submission information
Preprint Link: scipost_202108_00027v1  (pdf)
Date submitted: 2021-08-13 14:25
Submitted by: Abdul Khalek, Rabah
Submitted to: SciPost Physics Proceedings
Proceedings issue: 28th Annual Workshop on Deep-Inelastic Scattering (DIS) and Related Subjects (DIS2021)
Ontological classification
Academic field: Physics
  • High-Energy Physics - Phenomenology
Approach: Phenomenological


We quantify the impact of LHC dijet production measurements on the nNNPDF2.0 nuclear PDFs in twofold. First, from a proton baseline based on NNPDF3.1 and augmented by pp dijet production measurements from ATLAS and CMS at 7 and 8 TeV. Second, from a new nNNPDF2.0 global analysis including the ratio of pPb to pp dijet spectra from CMS at 5 TeV. We show that as opposed to the CMS at 5 TeV absolute pp and pPb dijet spectra, the pPb/pp ratio is well described in a nPDFs fit and provides strong constraints on the gluon of lead.

Current status:
Has been resubmitted

Reports on this Submission

Anonymous Report 1 on 2022-2-9 (Invited Report)


Nice report on the inclusion of CMS data on PDFs.

One suggestion for clarity, in the second-to-last sentence in the conclusion, the phrase "however it remains within uncertainties of nNNPDF2.0∗
and therefore not as significant"
should be perhaps rephrased to make it clear what is less significant, is it the s+sbar in particular or the global suppression?

  • validity: -
  • significance: -
  • originality: -
  • clarity: -
  • formatting: -
  • grammar: -

Login to report or comment