This analysis searched for new heavy bosons (R → SH and A → ZH) decaying into four leptons plus missing energy or jets, probing dark matter candidates across 320–1300 GeV using the full LHC Run-2 ATLAS dataset — the first ATLAS search of this kind.

My contribution: I drove this analysis from conception to publication as the sole Analysis Contact — the designated lead physicist responsible for all technical and editorial decisions on behalf of the ~3,000-member ATLAS Collaboration. This included designing the full analysis strategy, Monte Carlo signal generation, background estimation, statistical interpretation, and authoring the internal ATLAS note and the final journal paper. I led the peer-review response process. The analysis spanned my PhD and early postdoc — over five years of sustained independent scientific leadership.

This study pioneered the application of a quantum support-vector machine (QSVM-Kernel) algorithm to Higgs event classification at the CEPC, benchmarking IBM Quantum and Origin Quantum hardware against classical and noiseless-simulator baselines across 6-qubit circuits.

My contribution: I conceived and built the entire analysis framework in Python using Qiskit, which formed the foundation all results in this paper were built upon. I performed the benchmarking comparison between IBM and Origin Quantum hardware and between classical and quantum simulators. Co-authors independently cross-checked the results using the framework I designed.

This landmark ATLAS result provided the first evidence for off-shell Higgs boson production at 3.3σ significance, measuring the total Higgs width as 4.5⁺³·³₋₂.₅ MeV — the most precise direct ATLAS constraint at the time.

My contribution: I led the study of experimental systematic uncertainties for the ZZ → 4ℓ channel and performed the combined statistical analysis of both the ZZ → 4ℓ and ZZ → 2ℓ2ν channels. I directly extracted the total Higgs width and coupling constraints — the core physics result of this paper.

This study demonstrated strong sensitivity to BSM CP violation in the Higgs sector at the CEPC, constraining CP-violating parameters c̃_Zγ ∈ [−0.30, 0.27] and c̃_ZZ ∈ [−0.06, 0.06] at 68% CL using 5.6 ab⁻¹ at 240 GeV.

My contribution: I derived the Ji equations for the differential cross-section and built the foundational Monte Carlo generator framework in which the entire analysis was conducted, implementing multiple CP-coupling assumptions. The framework I developed formed the indispensable basis for all co-authors' results.

A formal study of multi-lepton anomalies across LHC results, finding significant data–SM discrepancies consistent with a heavy scalar H (270 GeV) decaying to a SM Higgs and singlet scalar S (150 GeV).

My contribution: I generated the BSM signal Monte Carlo samples and performed the ATLAS Run-I data analysis. I estimated systematic uncertainties in dilepton distributions from t t̄ and tW background processes — critical to the statistical robustness of the anomaly claims.

This ATLAS search for non-resonant and resonant HH production in the γγWW* final state used 36.1 fb⁻¹ at 13 TeV, setting 95% CL observed upper limits across resonance masses from 260 to 500 GeV.

My contribution: I contributed to analysis validation by independently cross-checking the signal cut-flow and producing comparison plots used in the internal ATLAS review process.

This study characterised the gg → H → Sh production mode and compared BSM scalar predictions against ATLAS and CMS Run-I dilepton data to constrain the S boson mass.

My contribution: I performed the full signal analysis for the gg → H → Sh process, estimated the S boson mass that best fit the observed dilepton spectra from both ATLAS and CMS, and carried out the BSM fit results in Table 1 for the Run-I dataset.