Jan 29 – 31, 2020
University of Venda
Africa/Johannesburg timezone

Application of a novel Machine Learning approach for the search of heavy resonances with topological features at the LHC

Jan 30, 2020, 2:35 PM
15m
University of Venda

University of Venda

Senate Chamber P/Bag X 5050 Thohoyandou, 0950

Speaker

Salah-Eddine Dahbi (University of the Witwatersrand (ZA))

Description

We propose a new approach to search for new resonances beyond the Standard Model (SM) of particle physics in topological configurations using Machine Learning techniques. This involves a novel classification procedure based on a combination of weak-supervision and full-supervision in conjunction with Deep Neural Network algorithms. The performance of this strategy is evaluated on the production of SM Higgs boson decaying to a pair of photons inclusively and exclusive regions of phase space, for specific production modes at the Large Hadron Collider (LHC), namely through the gluon-gluon fusion, the fusion of weak vector bosons, in associated production with a weak vector boson, or in association with a pair of top quarks. After verifying the ability of the methodology to extract different Higgs signal mechanisms, a search for new phenomena in high-mass diphoton final states is setup for the LHC.

Primary authors

Bruce Mellado Garcia (University of the Witwatersrand) Salah-Eddine Dahbi (University of the Witwatersrand (ZA))

Presentation materials