6–11 Jun 2021
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America/Toronto timezone
Welcome to the 2021 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2021!

(G*) The Search for Evidence of Vector Boson Scattering Between a Photon and a W Boson with the ATLAS Detector

7 Jun 2021, 16:20
10m
Underline Conference System

Underline Conference System

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Particle Physics / Physique des particules (PPD) M3-9 Exploring the Energy and Precision Frontier I (PPD) / Frontière d'énergie et de précision I (PPD)

Speaker

John Patrick Mc Gowan (McGill University, (CA))

Description

In the Standard Model, the interactions between gauge bosons are completely specified and any deviations from this expectation would indicate the presence of new physics phenomena at unprobed energy scales. The study of the self-couplings of electroweak gauge bosons is therefore a powerful approach to searching for new physics phenomena. The large data samples collected by the ATLAS experiment at the LHC make it possible to now explore extremely rare processes involving the interaction between four gauge bosons.
In this talk I will discuss the search for evidence of one of these rare processes, namely, the vector boson scattering between a W boson and a photon, whose production cross-section has never before been measured by the ATLAS collaboration. Making a measurement of this electroweak process is challenging due to the presence of a large and irreducible background from processes involving the strong interaction, which are mismodelled at high di-jet mass where we expect the greatest sensitivity to VBS. I will discuss analysis techniques being used to make a measurement in the presence of this large and mismodelled background.

Primary author

John Patrick Mc Gowan (McGill University, (CA))

Presentation materials