Publications
Publication Information
| Title | Transversity distributions and tensor charges of the nucleon: extraction from dihadron production and their universal nature |
| Authors | Christopher Cocuzza, Andreas Metz, Daniel Pitonyak, Alexei Prokudin, Nobuo Sato, Ralf Seidl |
| JLAB number | JLAB-THY-23-3859 |
| LANL number | arXiv:2306.12998 |
| Other number | DOE/OR/23177-6444 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | NSF, DOE |
|
Journal Compiled for Physical Review Letters Volume 132 Page(s) 091901 Refereed | |
| Publication Abstract: | We perform the first global quantum chromodynamics (QCD) analysis of dihadron production data in electron-positron annihilation, semi-inclusive deep-inelastic scattering, and proton-proton collisions, from which we extract simultaneously the transversity distributions of the nucleon and $\pi^+\pi^-$ dihadron fragmentation functions. We incorporate in our fits known theoretical constraints on transversity, namely, its small-$x$ asymptotic behavior and the Soffer bound. We furthermore show that lattice-QCD results for the tensor charges can be successfully included in the analysis. This resolves the previously reported incompatibility between the tensor charges extracted from dihadron production data and lattice QCD. We also find agreement with results for the transversity and tensor charges obtained from measurements on single-hadron production. Overall, our work demonstrates for the first time the universal nature of all available information for the transversity distributions and the tensor charges of the nucleon. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevLett.132.091901 |
| Accepted Manuscript: | PhysRevLett.132.091901.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |