| Title | Accessing the nucleon transverse structure in inclusive deep inelastic scattering |
| Authors | Alberto Accardi, Alessandro Bacchetta |
| JLAB number | JLAB-THY-17-2483 |
| LANL number | arXiv:1706.02000 |
| Other number | DOE/OR/23177-4159 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | European Research Council
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| Citation (AIP): |
A. Accardi, A. Bacchetta, Phys.Lett.B 773, 632-638 (2017) |
| Publication Abstract: | We revisit the standard analysis of inclusive Deep Inelastic Scattering off nucleons taking into account the fact that on-shell quarks cannot be present in the final state, but they rather decay into hadrons - a process that can be described in terms of suitable "jet" correlators. As a consequence, a spin-flip term associated with the invariant mass of the produced hadrons is generated
non perturbatively and couples to the target's transversity distribution function. In inclusive cross sections, this provides an hitherto neglected and large contribution to the twist-3 part of the g2 structure function, that
can explain the discrepancy between recent calculations and fits of this quantity. It also provides an extension of the Burkhardt-Cottingham sum rule, putting constraints on the small-x behavior of the transversity function, as well as an extension of the Efremov-Teryaev-Leader sum rule, suggesting a novel way to measure the tensor charge of the proton. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | pdf |
| DOI: | https://doi.org/10.1016/j.physletb.2017.08.074 |
| Accepted Manuscript: | 1-s2.0-S0370269317306962-main.pdf embargoed final, peer reviewed, accepted manuscript |
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