Quasielastic ³H⃗e (e⃗ , e′) Asymmetry in the Threshold Region with a Longitudinally Polarized Target
Document Type
Article
Publication Date
2026
DOI
10.1016/j.physletb.2026.140742
Publication Title
Physics Letters B
Volume
880
Pages
140742
Abstract
We report on the measurements of the double-spin asymmetry from electron-³He scattering in the threshold region of two- and three-body breakup of ³He for 4-momentum transfer values of 0.1 and 0.2 (GeV/c)². The measurement was done at Jefferson Lab using a polarized ³He target with its spin aligned parallel to the beam direction. This asymmetry is sensitive to a combination of spin-dependent response functions not previously measured and may highlight differences in two body forces, meson-exchange currents and final-state interactions. The results of this measurement serve as a test of our understanding of few-body systems. When compared with calculations from plane wave impulse approximation and Faddeev calculations, we found that the latter, which use modern nuclear potentials and prescriptions for meson-exchange currents, demonstrate an overall good agreement with data.
Rights
© 2026 The Authors.
Under a Creative Commons Attribution 4.0 International (CC BY 4.0) License.
Data Availability
Article states: "Data will be made available on request."
Original Publication Citation
Nycz, M., Armstrong, W., Averett, T., Gayoso, C. A., Bai, X., Bane, J., Barcus, S., Benesch, J., Bhatt, H., Bhetuwal, D., Biswas, D., Camsonne, A., Cates, C., Chen, J.-P., Chen, J., Chen, M., Cotton, C., Dalton, M.-M., Deltuva, A.,…Dhital, B. (2026). Quasielastic ³H⃗e (e⃗ , e′) asymmetry in the threshold region with a longitudinally polarized target. Physics Letters B, 880, 1-5, Article 140742. https://doi.org/10.1016/j.physletb.2026.140742
Repository Citation
Nycz, M.; Armstrong, W.; Averett, T.; Ayerbe Gayoso, C.; Bai, X.; Bane, J.; Barcus, S.; Benesch, J.; Bhatt, H.; Bhetuwal, D.; Biswas, D.; Camsonne, A.; Cates, G. D.; Chen, J-P.; Chen, J.; Chen, M.; Cotton, C.; Dalton, M. M.; Deltuva, A.; Deur, A.; Dhital, B.; Duran, B.; Dusa, S. C.; Fernando, I.; Fuchey, E.; Gamage, B. R.; Gao, H.; Gaskell, D.; Gautam, T.; Gauthier, N.; Golak, J.; Hansen, J. -O.; Hauenstein, F.; Henry, W.; Higinbotham, D. W.; Huber, G. M.; Jantzi, C.; Jia, S.; Jin, K.; Jones, M.; Joosten, S.; Karki, A.; Karki, B.; Katugampola, S.; Kay, S.; Keppel, C.; King, E.; King, P.; Korsch, W.; Kumar, V.; Li, R.; Li, S.; Li, W.; Mack, D.; Malace, S.; Markowitz, P.; Matter, J.; McCaughan, M.; Meziani, Z-E.; Michaels, R.; Mkrtchyan, A.; Morean, C.; Nelyubin, V.; Nguyen, H.; Niculescu, G.; Niculescu, M.; Peng, C.; Premathilake, S.; Puckett, A.; Rathnayake, A.; Rehfuss, M.; Reimer, P.; Riley, G.; Roblin, Y.; Roche, J.; Roy, M.; Sauer, P. U.; Scopeta, S.; Satnik, M.; Sawatzky, B.; Seeds, S.; Širca, S.; Skibiński, R.; Smith, G.; Sparveris, N.; Szumila-Vance, H.; Tadepalli, A.; Tadevosyan, V.; Tian, Y.; Tobias, W. A.; Usman, A.; Voskanyan, H.; Witala, H.; Wood, S.; Yale, B.; Yero, C.; Yoon, A.; Zhang, J.; Zhao, Z.; Zheng, X.; and Zhou, J., "Quasielastic ³H⃗e (e⃗ , e′) Asymmetry in the Threshold Region with a Longitudinally Polarized Target" (2026). Physics Faculty Publications. 1067.
https://digitalcommons.odu.edu/physics_fac_pubs/1067