May 29, 2018 to June 3, 2018
Hyatt Regency Indian Wells Conference Center
US/Pacific timezone

Review of the First $W$ Boson Mass Measurement with the ATLAS Detector

Jun 1, 2018, 2:00 PM
North Foyer | Ironwood Room (Hyatt Regency Indian Wells Conference Center)

North Foyer | Ironwood Room

Hyatt Regency Indian Wells Conference Center

44600 Indian Wells Lane, Indian Wells, CA 92210, USA
Parallel PHE TSEI / PHE


Fabrice Balli (CEA Saclay)


A precise measurement of the $W$ boson mass represents an important milestone to test the overall consistency of the Standard Model. Since the discovery of a Higgs Boson, the $W$ boson mass is predicted to 7 MeV precision, while the world average of all measurements is 15 MeV, making the improved measurement an important goal. Large samples of leptonic decays of $W$ and $Z$ bosons were collected by the ATLAS detector with efficient single lepton triggers in the 7 TeV data set corresponding to an integrated luminosity of 4.6 fb$^{-1}$. With these samples the detector and physics modelling has been studied in great detail and enabled a $W$ boson mass measurement with a precision of 19 MeV, which will be presented in this talk. Special focus will be drawn on the modeling of the production processes of $W$ bosons in proton-proton collisions, that are crucial for this measurement.
E-mail [email protected]
Collaboration name ATLAS Collaboration

Primary author

Fabrice Balli (CEA Saclay)

Presentation materials