In our third episode of stories straight from the heart of matter, we talk about the connections between the Electron-Ion Collider and High-Energy Physics, in particular parton distribution functions. What are parton distribution functions or short PDFs, how we extract them, and why they are of importance for Nuclear and High-Energy Physics, we learn from our expert, Dr. Tim Hobbs of Argonne National Laboratory.

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Further Reading

• John Collins, Davison Soper, and George Sterman review factorization theorems and their proofs.
• An example global analysis of Quantum Chromodynamics by Tim and his research colleages gives an idea of the wealth of data being used in global analysis and the shape of PDFs as a function of x, Q2, and parton flavor.