تقرير
Probing the jet transport coefficient of cold nuclear matter in electron-ion collisions
| العنوان: | Probing the jet transport coefficient of cold nuclear matter in electron-ion collisions |
|---|---|
| المؤلفون: | Ru, Peng, Kang, Zhong-Bo, Wang, Enke, Xing, Hongxi, Zhang, Ben-Wei |
| سنة النشر: | 2023 |
| المجموعة: | High Energy Physics - Experiment High Energy Physics - Phenomenology Nuclear Experiment Nuclear Theory |
| مصطلحات موضوعية: | Nuclear Theory, High Energy Physics - Experiment, High Energy Physics - Phenomenology, Nuclear Experiment |
| الوصف: | 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. Comment: 16 pages, 15 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2302.02329 |
| رقم الأكسشن: | edsarx.2302.02329 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |