A QCD description of the ATLAS jet veto measurement - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2013

A QCD description of the ATLAS jet veto measurement

Y. Hatta
  • Fonction : Auteur
C. Marquet
C. Royon
  • Fonction : Auteur
Gregory Soyez
T. Ueda
  • Fonction : Auteur
D. Werder
  • Fonction : Auteur

Résumé

We present a new QCD description of the ATLAS jet veto measurement, using the Banfi-Marchesini-Smye equation to constrain the inter-jet QCD radiation. This equation resums emissions of soft gluons at large angles, at leading-logarithmic accuracy, and accounts for both the so-called Sudakov and non-global logarithms. We show that this approach is able to reproduce, with no fitting parameters, the fraction of high-pT forward/backward di-jet events which do not contain additional hard emissions in the inter-jet rapidity range. We also compute the gap fraction in fixed-order perturbation theory to O(alpha_s^2) and show that the perturbative series is unstable at large rapidity intervals.

Dates et versions

cea-01068781 , version 1 (26-09-2014)

Identifiants

Citer

Y. Hatta, C. Marquet, C. Royon, Gregory Soyez, T. Ueda, et al.. A QCD description of the ATLAS jet veto measurement. 2013. ⟨cea-01068781⟩
126 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More