QCD@LHC2022

Session

Parallel C - WG7: 2

C

28 Nov 2022, 16:00

Salle des Conseils (Building 100)

143. Determination of collinear proton parton distribution functions using LHC data

Paul Richard Newman (University of Birmingham (GB))

28/11/2022, 16:00

WG7: Parton tomography from 1D to 5D

This talk presents recent data from ATLAS, CMS and LHCb that is sensitive to the proton parton distribution functions (PDFs), including inclusive W and Z boson production, ttbar production, W+jets and Z+jets production, inclusive jet production and direct photon production. The data are used in combination with deep-inelastic scattering data from HERA to extract the PDFs themselves, together...

28. Theory developments in PDF determination

Dr Juan Manuel Cruz Martinez (University of Milan)

28/11/2022, 16:20

WG7: Parton tomography from 1D to 5D

Theory predictions play a crucial role in PDF fitting.
In order to include data for new processes, you need predictions to compare with. To assess the impact of the perturbative series, Standard Model parameters, or other external inputs, different options have to be readily available. Moreover, to do this and other studies, theory have to be recomputed over and over, with a non-negligible...

82. A data-driven test of a quantum-statistics PDF parametrisation.

Federico Silvetti (Sapienza Universita e INFN, Roma I (IT))

28/11/2022, 16:40

WG7: Parton tomography from 1D to 5D

Parton Distribtions Functions (PDFs) are a pivotal input in every theoretical prediction involving initial-state protons, from hadron collider to neutrino telescopes. These objects are usually determined throught fits to experimental data, leaving a large degree of freedom in the choice of the best functional form to be used and in the starting energy reference scale.
In this talk we discuss...

94. Sudakov suppression and gluon saturation at NLO

Paul Caucal (Subatech)

28/11/2022, 17:00

WG7: Parton tomography from 1D to 5D

We study inclusive dijet production in deep inelastic scattering at NLO within the Color Glass Condensate effective field theory. We begin by studying this process in general small-$x$ kinematics. We first show that the differential cross-section is infrared and collinear safe. We demonstrate the factorization of large rapidity logarithms that can then be resummed via JIMWLK renormalization,...