12–16 Jul 2021
Europe/Zurich timezone
Due to the COVID-19 coronavirus pandemic, the ISMD2021 meeting has been moved online. We look forward to welcoming you in the Scottish Highlands next summer.

Photon-photon fusion and ultra-peripheral physics with ATLAS

13 Jul 2021, 15:10
20m
Talk Forward and diffractive physics Forward and diffractive physics

Speaker

Rafał Staszewski (IFJ PAN Cracow (PL))

Description

Photon-photon fusion is a rare process at hadron and ion colliders. It is particularly interesting as a remarkably clean interaction with little (if any) remnant activity from the interacting particles. In this talk we present the status of photon-photon fusion measurements at the ATLAS detector. We present differential measurements of the light-by-light scattering process, γγ → γγ, in lead-lead collisions. In addition, we present photon-photon fusion measurements using events that contain two charged leptons in the final state. The scattered proton is detected by the ATLAS Forward Proton spectrometer while the leptons are reconstructed by the central ATLAS detector. Finally, we highlight the observation of photon-induced $WW$ production.

Preferred track Forward & Diffractive Physics

Primary author

Co-author

Erich Ward Varnes (University of Arizona (US))

Presentation materials