Publications
Publication Information
| Title | Neutron Spin Structure from e-3He Scattering with Double Spectator Tagging at the Electron-Ion Collider |
| Authors | Ivica Friscic, Dien Nguyen, Jackson Pybus, A. Jentsch, Mark Baker, O. Hen, Douglas Higinbotham, Richard Milner, Arun Tadepalli, Jennifer Rittenhouse West, Efrain Segarra |
| JLAB number | JLAB-PHY-21-3427 |
| LANL number | arXiv:2106.08805 |
| Other number | DOE/OR/23177-5243 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | Yes |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
|
Journal Compiled for Physics Letters B Volume 823 Page(s) 136726 Refereed | |
| Publication Abstract: | The spin structure function of the neutron is traditionally determined by measuring the spin asymmetry of inclusive electron deep inelastic scattering (DIS) off polarized 3He nuclei. In such experiments, nuclear effects can lead to large model dependencies in the interpretation of experimental data. Here we study the feasibility of suppressing such model dependencies by tagging both spectator protons in the process of DIS off neutrons in3He at the forthcoming Electron-Ion Collider (EIC). This allows reconstructing the momentum of the struck neutron to ensure it was nearly at rest in the initial state, thereby reducing sensitivity to nuclear corrections, and suppress contributions from electron DIS off protonsin3He. Using realistic accelerator and detector configurations, we find that the EIC can probe the neutron spin structure from xB of 0.003 to 0.651. We further find that the double spectator tagging method results in reduced uncertainties bya factor of 4 on the extracted neutron spin asymmetries over all kinematics, and by a factor of 10 in the low-xB region,thereby providing valuable insight to the spin and flavor structure of nucleons. |
| Experiment Numbers: | other |
| Group: | Administrative |
| Document: | |
| DOI: | https://doi.org/10.1016/j.physletb.2021.136726 |
| Accepted Manuscript: | 1-s2.0-S0370269321006663-main.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |