Unravelling Proton Structure with Hyperoptimized Machine Learning

At energy-frontier facilities such as the Large Hadron Collider, scientists study the laws of nature in their quest for novel phenomena both within and beyond the standard model of particle physics. An in-depth understanding of the quark and gluon substructure of protons and heavy nuclei is crucial to address pressing questions, from the nature of the Higgs boson to the origin of cosmic neutrinos.

What are we trying to achieve and how? 

In this project, we will tackle long-standing puzzles in our understanding of strong interactions, including the origin of the proton spin and the strange content of nucleons. The key to achieve this will be the first-ever universal analysis of nucleon structure from the simultaneous determination of the momentum and spin distributions of quarks and gluons and their fragmentation into hadrons. We will combine an extensive experimental dataset and cutting-edge theory calculations within a machine learning framework. The exploration of the resulting complex parameter space demands an algorithmic strategy to determine the model hyperparameters such as network architectures. 

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