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19932026
most citedHeavy quarkonium: progress, puzzles, and opportunities

1.8k citations

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1,012 papers · 1 filter

hep-ph2026

Learning Transverse Momentum Distributions from Raw Scattering Events via Conditional Diffusion

Jitao Xu, Christopher Cocuzza, Kevin Braga +3

Extracting transverse momentum dependent parton distribution functions (TMD PDFs) from semi-inclusive deep inelastic scattering (SIDIS) data is a central goal of the nucleon struct…

hep-ph2026

Collins asymmetries for pion-in-jet production in polarized collisions at the EIC

Umberto D'Alesio, Carlo Flore, Marco Zaccheddu

We study Collins azimuthal asymmetries for pion-in-jet production in polarized lepton-proton collisions, extending previous analyses of polarized scattering to a complementary…

hep-ph2026

Electromagnetic Production of Kaons on the Nucleon

Terry Mart, Jovan Alfian Djaja, Daniel S. Carman

Studies of the electromagnetic production of strange quarks began in the 1950s as something of a curiosity that puzzled experimentalists and theorists alike. As the datasets increa…

hep-ph2025

New framework for extracting GPDs from exclusive photon electroproduction

Jian-Wei Qiu, Nobuo Sato, Zhite Yu

Recently, a new framework for studying generic hard exclusive reactions, referred to as single-diffractive hard exclusive processes, has been introduced to provide a clea…

hep-ph2025★ 2 cited

Determination of proton PDF uncertainties with Markov chain Monte Carlo

Peter Risse, Nasim Derakhshanian, Tomas Jezo +2

We present an analysis of parton distribution functions (PDFs) of the proton using Markov Chain Monte Carlo (MCMC) methods. The MCMC approach naturally implements Bayes' theorem an…

hep-ph2025

High-energy photoproduction and the nature of exotic waves

Gloria Montaña, Vincent Mathieu, Vanamali Shastry +9

The observation of hybrid mesons in photoproduction experiments can provide essential insight into the inner workings of quantum chromodynamics in the strong coupling regime. In pa…