31 July 2017 to 4 August 2017
Fermi National Accelerator Laboratory
US/Central timezone

Measuring the b-tagging Efficiency in ATLAS

1 Aug 2017, 14:42
18m
Racetrack (Fermi National Accelerator Laboratory)

Racetrack

Fermi National Accelerator Laboratory

Presentation Quark and Lepton Flavor Quark and Lepton Flavor

Speaker

Rachael Creager (University of Pennsylvania)

Description

The identification of jets containing b hadrons is essential for many different searches and measurements on ATLAS. A calibration of the b-jet identification efficiency is presented for several different algorithms, using data collected by the ATLAS detector in 2016 corresponding to an integrated luminosity of 11.6 \fb of proton-proton collisions at a center-of-mass energy of 13 TeV. The calibration technique relies on a sample of jets containing a muon with the jet cone, where the component of the muon momentum perpendicular to the jet axis provides an effective discriminant on a statistical basis for distinguishing jets originating from bottom quarks from jets originating from charm quarks, light flavor quarks or gluons.

Primary author

Rachael Creager (University of Pennsylvania)

Presentation materials