CERN Accelerating science

Article
Report number arXiv:2110.02599 ; CMS-CR-2021-166
Title Modelling the Data at the LHC
Related titleModelling the data at the LHC: status and issues (overview including soft QCD and TOP)
Author(s) Yazgan, Efe (Taiwan, Natl. Taiwan U.)
Collaboration ATLAS Collaboration ; CMS Collaboration
Publication 2022-03-02
Imprint 2021-10-06
Number of pages 5
Note 5 pages, 2 figures, to appear in the Proceedings of Particles and Nuclei International Conference - PANIC2021, 5-10 September, 2021
In: PoS PANIC2021 (2022) 410
In: 22nd Particles and Nuclei International Conference (PANIC 2021), Lisbon, Portugal, 5 - 10 Sep 2021, pp.410
DOI 10.22323/1.380.0410
Subject category hep-ph ; Particle Physics - Phenomenology ; hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS ; CMS
Abstract Measurements at hadron colliders rely on large scale quantum chromodynamics (QCD) Monte Carlo (MC) production for interpretation of the data. MC simulations allow testing Standard Model (SM) with more accurate and precise calculations to understand perturbative QCD as well as electroweak effects, and extrapolations of the irreducible backgrounds to signal phase-space regions for new physics searches or for the measurements of rare SM processes. In the MC codes, there are many pieces, approximations, and parameters and settings to compare to the data and tune. Precise experimental measurements at the LHC require similar level of precision in theoretical calculations. Cross sections measured at the LHC both by ATLAS and CMS experiments cover more than 14 orders of magnitude. So far, SM cross section predictions are found to be in very good agreement with the data. These cross sections are measured at different pp collision energies and compared to prediction up to next-to-next-to-leading order (NNLO) for many processes, and recently up to N3LO for some of them. In this note, a few measurements relevant to data modelling are discussed.
Copyright/License preprint: © the author(s) (License: CC-BY-NC-ND 4.0)
publication: © 2022-2025 The author(s)



Corresponding record in: Inspire


 Record created 2021-10-08, last modified 2023-01-31


Fulltext:
2110.02599 - Download fulltextPDF
PANIC2021_410 - Download fulltextPDF
document - Download fulltextPDF
  • Send to ScienceWise.info