English

Precision three-dimensional imaging of nuclei using recoil-free jets

High Energy Physics - Phenomenology 2024-05-16 v2 High Energy Physics - Experiment Nuclear Experiment Nuclear Theory

Abstract

In this study, we explore the azimuthal angle decorrelation of lepton-jet pairs in e-p and e-A collisions as a means for precision measurements of the three-dimensional structure of bound and free nucleons. Utilizing soft-collinear effective theory, we perform the first-ever resummation of this process in e-p collisions at NNLL accuracy using a recoil-free jet axis. Our results are validated against Pythia simulations. In e-A collisions, we address the complex interplay between three characteristic length scales: the medium length LL, the mean free path of the energetic parton in the medium λ\lambda, and the hadronization length LhL_h. We demonstrate that in the thin-dilute limit, where LLhL \ll L_h and LλL \sim \lambda, this process can serve as a robust probe of the three-dimensional structure for bound nucleons. We conclude by offering predictions for future experiments at the Electron-Ion Collider within this limit.

Keywords

Cite

@article{arxiv.2311.02150,
  title  = {Precision three-dimensional imaging of nuclei using recoil-free jets},
  author = {Shen Fang and Weiyao Ke and Ding Yu Shao and John Terry},
  journal= {arXiv preprint arXiv:2311.02150},
  year   = {2024}
}

Comments

23 pages, 4 figures; v2: fixed language typos and added journal reference