High‑Energy Physics × Machine Learning

ATLAS open data • Higgs (H → ZZ → 4ℓ) • ROOT • TensorFlow/Keras • Ares/PLGrid

About

Physics undergraduate (St. Xavier’s College, TU, Nepal)

I work at the intersection of experimental high‑energy physics and machine learning. Recent work includes discriminating Higgs events from Standard Model backgrounds in ATLAS 13 TeV open data using deep neural networks and ROOT‑based feature engineering.

Research interests

Collider physics

Higgs, electroweak signatures, multilepton final states, significance estimation.

ML for HEP

Supervised learning for S/B separation, ROC/AUC analysis, calibration and uncertainty.

Tooling

ROOT, Python, TensorFlow/Keras, scikit‑learn, Hypatia; HPC on Ares (PLGrid).

Quantum & computation

Introductory quantum computing (Qiskit) and numerical methods (Quantum ESPRESSO basics).

Selected research & projects

Hands‑on work with ATLAS open data and comparative studies of shallow vs deep networks across HEP datasets.

ATLAS • Higgs • DNN

Identifying Higgs Boson Events (√s = 13 TeV) Using Deep Neural Networks

Built a Keras pipeline to classify H → ZZ → 4ℓ events vs. SM backgrounds using features extracted with ROOT. Achieved AUC ≈ 0.94 and discovery significance ≈ 5.37σ. Produced ROC curves and score distributions showing clear separation.

Poster & figures

PPSS 2025

Deep vs Shallow NNs in Particle Physics Experiments

Compared models on ATLAS (AUC ~0.88), MiniBooNE (~0.98), and Belle II (~0.987). Used Cyfronet Ares for accelerated training (epoch: CPU 150s → GPU 23s). Conclusion: deep NNs excel on complex, large datasets; shallow remain competitive when features are physics‑informed.

Mini‑conference slides

Data • Benchmarks

HIGGS UCI dataset

Implemented baselines (logistic regression, decision trees, DNNs) and profiled CPU/GPU scaling; emphasized reproducible evaluation and ROC/AUC as standard metrics.

Computational

Quantum ESPRESSO & Qiskit (intro)

Completed short workshops covering ab‑initio simulations and fundamentals of quantum circuits and algorithms.

Toolbox

Programming, data/HEP tools, systems, and writing.

Programming & scripting

Python, C, C++, HTML, MATLAB

Data & HEP

ROOT, Hypatia, TensorFlow, Keras, scikit‑learn

Systems & dev

Linux, Git/GitHub, Docker, SLURM

Scientific writing

LaTeX

Posters & presentations

PenteQost‑25 Spring School, University of Siegen (June 6–10, 2025) Poster: “Identifying Higgs Boson Events in √s = 13 TeV ATLAS Data Using Deep Neural Networks”.
PPSS IFJ PAN mini‑conference (July–Aug 2025) Slides with Kacper Kopeć — comparative ML study in HEP (link).

Schools • Workshops • Competitions

PenteQost‑25 (Quantum Science)

Interdisciplinary school: precision spectroscopy, quantum information, open systems, complexity.

IFJ PAN PPSS 2025

160‑hour program with ROOT training, Hypatia hands‑on, and supervised ML project.

ICTP Youth in High‑Dimensions

Lectures on ML, high‑dimensional inference, and generative‑AI perspectives.

PLANCKS 2024 (Finals)

Represented Nepal in theoretical physics competition at Trinity College Dublin.

Contact

Let’s collaborate

Open to research internships and collaborations in collider physics and ML for HEP.

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