• Corpus ID: 256615815

Probing the jet transport coefficient of cold nuclear matter in electron-ion collisions

@inproceedings{Ru2023ProbingTJ,
  title={Probing the jet transport coefficient of cold nuclear matter in electron-ion collisions},
  author={Peng Ru and Zhong-Bo Kang and Enke Wang and Hongxi Xing and Ben-Wei Zhang},
  year={2023}
}

• P. Ru, Z. Kang, +2 authors Ben-Wei Zhang
• Published 5 February 2023
• Physics

We present a study of the nuclear-medium induced transverse momentum broadening of particle production in future electron-ion-collision~(EIC) experiments. By considering the multiple scattering between hard partons and cold nuclear medium within the higher-twist factorization framework in perturbative QCD, we calculate the transverse momentum broadening of single hadron production in semi-inclusive measurements, as well as the nuclear enhancement of the transverse momentum imbalance for di-hadron and heavy-meson pair productions. In particular, a kinematics dependent non-perturbative jet transport coefficient $\hat q=\hat q(x,Q^2)$ extracted in a global analysis of the current data, together with its uncertainty determined with a Hessian method, are input into our calculations and are available for the community. Significant kinematic and color-state dependences of the nuclear induced broadening/imbalance are predicted. Our results indicate that the future EIC measurements are able to provide powerful constraints on the kinematic dependence of the transport coefficient $\hat q$ and thus greatly facilitate the jet tomography of cold nuclear medium.