en
Scientific article
Open access
English

Measurement of the production cross section of three isolated photons in pp collisions at √s = 8 TeV using the ATLAS detector

ContributorsATLAS Collaboration
Published inPhysics Letters. B
Collection
  • Open Access - SCOAP3
Publication date2018
Abstract

A measurement of the production of three isolated photons in proton–proton collisions at a centre-of-mass energy s=8 TeV is reported. The results are based on an integrated luminosity of 20.2 fb −1 collected with the ATLAS detector at the LHC. The differential cross sections are measured as functions of the transverse energy of each photon, the difference in azimuthal angle and in pseudorapidity between pairs of photons, the invariant mass of pairs of photons, and the invariant mass of the triphoton system. A measurement of the inclusive fiducial cross section is also reported. Next-to-leading-order perturbative QCD predictions are compared to the cross-section measurements. The predictions underestimate the measurement of the inclusive fiducial cross section and the differential measurements at low photon transverse energies and invariant masses. They provide adequate descriptions of the measurements at high values of the photon transverse energies, invariant mass of pairs of photons, and invariant mass of the triphoton system.

Citation (ISO format)
ATLAS Collaboration. Measurement of the production cross section of three isolated photons in pp collisions at √s = 8 TeV using the ATLAS detector. In: Physics Letters. B, 2018. doi: 10.1016/j.physletb.2018.03.057
Main files (1)
Article (Published version)
Identifiers
ISSN of the journal0370-2693
889views
120downloads

Technical informations

Creation04/05/2018 10:46:44 AM
First validation04/05/2018 10:46:44 AM
Update time03/15/2023 8:02:57 AM
Status update03/15/2023 8:02:56 AM
Last indexation02/12/2024 11:31:55 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack