Publications
Publication Information
| Title | Gauge-invariant TMD factorization for Drell-Yan hadronic tensor at small $x$ |
| Authors | Ian Balitsky |
| JLAB number | JLAB-THY-20-3294 |
| LANL number | arXiv:2012.01588 |
| Other number | DOE/OR/23177-5085 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Journal of High Energy Physics Volume 2021 Issue 05 Page(s) 046 Refereed | |
| Publication Abstract: | The Drell-Yan hadronic tensor for electromagnetic (EM) current is calculated in the Sudakov region s >>? Q^2 >>? q^2 with 1/Q^2 accuracy, first at the tree level and then with double-log accuracy. It is demonstrated that in the leading order in N_c the higher-twist quark-quark-gluon TMDs reduce to leading-twist TMDs due to QCD equation of motion. The resulting tensor for unpolarized hadrons is EM gauge-invariant and depends on two leading-twist TMDs: f1 responsible for total DY cross section, and Boer-Mulders function h1 . The order-of-magnitude estimates of angular distributions for DY process seem to agree with LHC results at corresponding kinematics. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1007/JHEP05(2021)046 |
| Accepted Manuscript: | Balitsky2021_Article_Gauge-invariantTMDFactorizatio.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |