Logo del repository
  1. Home
 
Opzioni

Measurement of tt ̄ production in association with additional b-jets in the eμ final state in proton–proton collisions at s = 13 TeV with the ATLAS detector

Aad G.
•
Aakvaag E.
•
Abbott B.
altro
Zwalinski L.
2025
  • journal article

Periodico
JOURNAL OF HIGH ENERGY PHYSICS
Abstract
This paper presents measurements of top-antitop quark pair (tt ̄) production in association with additional b-jets. The analysis utilises 140 fb−1 of proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider at a centre-of-mass energy of 13 TeV. Fiducial cross-sections are extracted in a final state featuring one electron and one muon, with at least three or four b-jets. Results are presented at the particle level for both integrated cross-sections and normalised differential cross-sections, as functions of global event properties, jet kinematics, and b-jet pair properties. Observable quantities characterising b-jets originating from the top quark decay and additional b-jets are also measured at the particle level, after correcting for detector effects. The measured integrated fiducial cross-sections are consistent with tt ̄bb ̄ predictions from various next-to-leading-order matrix element calculations matched to a parton shower within the uncertainties of the predictions. State-of-the-art theoretical predictions are compared with the differential measurements; none of them simultaneously describes all observables. Differences between any two predictions are smaller than the measurement uncertainties for most observables.
DOI
10.1007/JHEP01(2025)068
Archivio
https://hdl.handle.net/11390/1311067
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-105011725304
https://ricerca.unityfvg.it/handle/11390/1311067
Diritti
open access
Soggetti
  • Hadron-Hadron Scatter...

  • Top Physics

google-scholar
Get Involved!
  • Source Code
  • Documentation
  • Slack Channel
Make it your own

DSpace-CRIS can be extensively configured to meet your needs. Decide which information need to be collected and available with fine-grained security. Start updating the theme to match your nstitution's web identity.

Need professional help?

The original creators of DSpace-CRIS at 4Science can take your project to the next level, get in touch!

Realizzato con Software DSpace-CRIS - Estensione mantenuta e ottimizzata da 4Science

  • Impostazioni dei cookie
  • Informativa sulla privacy
  • Accordo con l'utente finale
  • Invia il tuo Feedback