Re-examining the significance of the 750 GeV diphoton excess at ATLAS - Université Pierre et Marie Curie Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2016

Re-examining the significance of the 750 GeV diphoton excess at ATLAS

Résumé

The excess seen in the diphoton channel at around 750 GeV by both ATLAS and CMS has caused a great deal of excitement in the particle physics community. However, there has recently been much discussion about uncertainties in the significance of the peak seen by the ATLAS experiment. In this note, we aim to estimate this significance using a range of possible parametrisations for the smooth diphoton background. We obtain a local significance close to that reported by ATLAS and further demonstrate that the significance of the excess is not substantially reduced when more complicated background functions are considered. In particular, the background contribution is strongly constrained by the small numbers of events at large diphoton invariant mass. Future data releases will improve constraints on the diphoton background, as well as clarifying the true nature of the 750 GeV excess.
Fichier principal
Vignette du fichier
1601.07330v3.pdf (452.75 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

cea-01360364 , version 1 (05-09-2016)

Identifiants

Citer

Bradley J. Kavanagh. Re-examining the significance of the 750 GeV diphoton excess at ATLAS. 2016. ⟨cea-01360364⟩
227 Consultations
56 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More