Logo del repository
  1. Home
 
Opzioni

Evidence for tt ̄ tt ̄ production in the multilepton final state in proton–proton collisions at √s=13 TeV with the ATLAS detector

Aad G.
•
Abbott B.
•
Abbott D. C.
altro
Zwalinski L.
2020
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
A search is presented for four-top-quark production using an integrated luminosity of 139 fb- 1 of proton–proton collision data at a centre-of-mass energy of 13TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be 24-6+7 fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 4.3 (2.4) standard deviations and provides evidence for this process.
DOI
10.1140/epjc/s10052-020-08509-3
Archivio
http://hdl.handle.net/11390/1194865
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85096516887
Diritti
open access
Web of Science© citazioni
57
Data di acquisizione
Mar 22, 2024
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