26–30 Jun 2017
Europe/Prague timezone
<a href="https://indico.cern.ch/event/577066/attachments/1417295/2170432/Circ2-EDS17.pdf">2nd circular</a>

Measurements of exclusive production with the ATLAS detector

28 Jun 2017, 16:50
20m
Hard diffraction and central exclusive production Hard Diffraction and Central Exclusive Production Session

Speaker

Leszek Adamczyk (AGH University of Science and Technology (PL))

Description

In the absence of forward proton tagging, exclusive processes can be distinguished in the central part of the ATLAS detector exploiting the large rapidity gap in the central region and the absence of charged particles reconstructed in the inner tracking detector. This strategy has been adopted to study the exclusive production of dilepton pairs (ee and mumu) in
proton-proton collision data taken at centre-of-mass energies of 7, 8 and 13 TeV. The results show significant deviations from the pure QED prediction, which can be explained by photon
coherence and proton rescattering effects. If available, a measurement of the production of exclusive pions at 7 TeV with the ATLAS detector will be also presented.

In addition, an analysis performed at 8 TeV concentrates on the electron-muon final state to study the exclusive production of WW boson pairs. This analysis is re-optimised to search for the exclusive production of the Higgs boson in the WW* decay channel and the corresponding results will be discussed.

Authors

Oldrich Kepka (Acad. of Sciences of the Czech Rep. (CZ)) ATLAS Collaboration

Presentation materials