Quasielastic 3He→(e→,e′) asymmetry in the threshold region with a longitudinally polarized target Article

Nycz, M, Armstrong, W, Averett, T et al. (2026). Quasielastic 3He→(e→,e′) asymmetry in the threshold region with a longitudinally polarized target . PHYSICS LETTERS B, 880 10.1016/j.physletb.2026.140742

cited authors

  • Nycz, M; Armstrong, W; Averett, T; Gayoso, CA; Bai, X; Bane, J; Barcus, S; Benesch, J; Bhatt, H; Bhetuwal, D; Biswas, D; Camsonne, A; Cates, GD; Chen, JP; Chen, J; Chen, M; Cotton, C; Dalton, MM; Deltuva, A; Deur, A; Dhital, B; Duran, B; Dusa, SC; Fernando, I; Fuchey, E; Gamage, BR; Gao, H; Gaskell, D; Gautam, T; Gauthier, N; Golak, J; Hansen, JO; Hauenstein, F; Henry, W; Higinbotham, DW; Huber, GM; 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, ZE; Michaels, R; Mkrtchyan, A; Mkrtchyan, H; 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, PU; Scopeta, S; Satnik, M; Sawatzky, B; Seeds, S; Širca, SS; Skibiński, R; Smith, G; Sparveris, N; Szumila-Vance, H; Tadepalli, A; Tadevosyan, V; Tian, Y; Tobias, WA; Usman, A; Voskanyan, H; Witała, H; Wood, S; Yale, B; Yero, C; Yoon, A; Zhang, J; Zhao, Z

authors

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.

publication date

  • September 1, 2026

published in

Digital Object Identifier (DOI)

volume

  • 880