PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Posters: Higgs Physics
Search for new resonances in high-mass diphoton final states using proton-proton collision data collected with the ATLAS detector
Y. Wang* on behalf of the ATLAS collaboration
*corresponding author
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Pre-published on: December 25, 2020
Published on:
Abstract
A search for new resonances decaying to two photons is performed, using 139 $fb^{-1}$ collision data at $\sqrt{s}$ = 13 TeV collected by the ATLAS detector at the LHC. A spin-0 signal predicted by theories with extended Higgs sector and a spin-2 graviton excitation using a warped extra-dimension benchmark model are searched for. No significant deviation from the Standard Model is observed. Upper limits are set on the production cross-section times branching ratio as a function of the resonance mass and width.
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