English

Towards a Quantum Information Theory of Hadronization: Dihadron Fragmentation and Neutral Polarization in Heavy Baryons

High Energy Physics - Phenomenology 2025-06-26 v2 High Energy Physics - Experiment Nuclear Experiment Nuclear Theory Quantum Physics

Abstract

We pioneer the application of quantum information theory to experimentally distinguish between classes of hadronization models. We adapt the CHSH inequality to the fragmentation of a single parton to hadron pairs, a violation of which would rule out classical dynamics of hadronization altogether. Furthermore, we apply and extend the theory of quantum contextuality and local quantum systems to the neutral polarization of a single spin-1 hadronic system, namely the light constituents of excited Sigma baryons Σc,b\Sigma^{*}_{c,b} formed in the fragmentation of heavy quarks.

Keywords

Cite

@article{arxiv.2503.22607,
  title  = {Towards a Quantum Information Theory of Hadronization: Dihadron Fragmentation and Neutral Polarization in Heavy Baryons},
  author = {Rebecca von Kuk and Kyle Lee and Johannes K. L. Michel and Zhiquan Sun},
  journal= {arXiv preprint arXiv:2503.22607},
  year   = {2025}
}

Comments

5 pages + supplemental material, 3 figures; v2: added references, comparison to data from 2506.05499, additional detail in Supp. B