XXV DAE-BRNS High Energy Physics Symposium 2022

Search for high mass resonances decaying into W+W− in the dileptonic final state with 138 fb−1 of proton-proton collisions at √ s = 13 TeV

12 Dec 2022, 14:00

1h

Foyer (IISER Mohali)

Poster Poster - 1

Speaker

Sadhana Verma (Indian Institute of Technology Madras (IN))

Description

A search for high mass resonances decaying into a pair of W bosons is presented. The analysis is based on proton-proton collisions observed by the CMS experiment at the CERN LHC for full Run 2, corresponding to an integrated luminosity of 138 fb−1 at sqrt(s) = 13 TeV. The analysis considers the fully leptonic final state . New techniques are implemented in the analysis to improve the sensitivity of the search, especially in the very high mass range. The search is performed in a mass range from 115 GeV to 5 TeV, and for various width hypotheses. The effects of background and signal interference are also considered. The results are presented as 95% confidence level upper limits on the product of the cross section and branching ratio on the production of a high mass resonance, as well as exclusion limits are derived on various two-higgs-doublet models and minimal supersymmetric standard model benchmark scenarios.