I’m a fourth-year DPhil student working in the ATLAS Exotics Group under the supervision of James Frost and Todd Huffman.
My research focuses on measurements of the Higgs boson. Within ATLAS, I work on searches for beyond the Standard Model physics in di-Higgs final states in which a dark-matter candidate is produced in association with a Higgs pair, leading to an imbalance of transverse momentum in the event (missing transverse energy, MET). The analysis uses novel machine-learning architectures to probe previously unexplored regions of parameter space.
The search is performed in the high-statistics Higgs decay channel to pairs of bottom quarks (HH → 4b). Efficient identification of such b-quarks, which appear as jets in the detector, is crucial for the analysis. To this end, I am also involved in the Flavour Tagging (FTAG) group within ATLAS, where I redesigned software and performed the calibration for high-momentum b-jets of a new transformer-based graph neural network (GNN) algorithm. This work ensures that ATLAS analyses assign appropriate uncertainties to highly energetic events, which are particularly important when searching for physics beyond the Standard Model.
Beyond ATLAS, I am exploring the potential of a future circular hadron–hadron collider (FCC-hh) to study Higgs self-interactions, particularly through triple-Higgs production. The aim is to constrain the trilinear and quartic Higgs self-couplings, which are crucial for understanding electroweak symmetry breaking and the structure of the Higgs potential.