Study of <i>Z</i> → <i>ll</i>γ decays at √<i>s</i>=8 TeV with the ATLAS detector


Aad G., Abbott B., Abbott D. C., Abeling K., Abidi S. H., Aboulhorma A., ...More

EUROPEAN PHYSICAL JOURNAL C, vol.84, no.2, 2024 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 84 Issue: 2
  • Publication Date: 2024
  • Doi Number: 10.1140/epjc/s10052-024-12471-9
  • Journal Name: EUROPEAN PHYSICAL JOURNAL C
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, zbMATH, Directory of Open Access Journals
  • Ankara University Affiliated: Yes

Abstract

This paper presents a study of Z -> ll gamma decays with the ATLAS detector at the Large Hadron Collider. The analysis uses a proton-proton data sample corresponding to an integrated luminosity of 20.2 fb(-1) collected at a centre-of-mass energy root s = 8 TeV. Integrated fiducial cross-sections together with normalised differential fiducial cross-sections, sensitive to the kinematics of final-state QED radiation, are obtained. The results are found to be in agreement with state-of-the-art predictions for final-state QED radiation. First measurements of Z -> ll gamma gamma decays are also reported.