Publications
Publication Information
| Title | Accessing gluon polarization with high-P_T hadrons in SIDIS |
| Authors | Richard Whitehill, Y. Zhou, Nobuo Sato, Wolodymyr Melnitchouk |
| JLAB number | JLAB-THY-22-3743 |
| LANL number | arXiv:2210.12295 |
| Other number | DOE/OR/23177-5634, ADP-22-30/T1201 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | Yes |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physical Review D Volume 107 Refereed | |
| Publication Abstract: | Recent global QCD analysis of jet production and other polarized scattering data have found the presence of negative solutions for the gluon helicity distribution in the proton, $\Delta g$, along with the traditional $\Delta g > 0$ solutions. We consider polarized semi-inclusive deep-inelastic scattering for hadrons produced with large transverse momentum as a means of constraining the dependence of $\Delta g$ on the parton momentum fraction, $x$. Focusing on the double longitudinal spin asymmetry, we identify the kinematics relevant for future experiments at Jefferson Lab and the Electron-Ion Collider which are particularly sensitive to the polarized gluon channel and could discriminate between the different $\Delta g$ behaviors. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | http://dx.doi.org/10.1103/PhysRevD.107.034033 |
| Accepted Manuscript: | PhysRevD.107.034033.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |