Speaker
Fabrice Balli
(CEA Saclay)
Description
A precise measurement of the boson mass represents an important milestone to test the overall consistency of the Standard Model. Since the discovery of a Higgs Boson, the 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 and 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 . With these samples the detector and physics modelling has been studied in great detail and enabled a 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 bosons in proton-proton collisions, that are crucial for this measurement.
fabrice.balli@cern.ch | |
Collaboration name | ATLAS Collaboration |
Primary author
Fabrice Balli
(CEA Saclay)