Measurement of double-polarization asymmetries in the quasielastic (3)He[→](e[→],e(')d) process.

Journal Article (Journal Article)

We present a precise measurement of double-polarization asymmetries in the ^{3}He[over →](e[over →],e^{'}d) reaction. This particular process is a uniquely sensitive probe of hadron dynamics in ^{3}He and the structure of the underlying electromagnetic currents. The measurements have been performed in and around quasielastic kinematics at Q^{2}=0.25(GeV/c)^{2} for missing momenta up to 270  MeV/c. The asymmetries are in fair agreement with the state-of-the-art calculations in terms of their functional dependencies on p_{m} and ω, but are systematically offset. Beyond the region of the quasielastic peak, the discrepancies become even more pronounced. Thus, our measurements have been able to reveal deficiencies in the most sophisticated calculations of the three-body nuclear system, and indicate that further refinement in the treatment of their two-and/or three-body dynamics is required.

Full Text

Duke Authors

Cited Authors

  • Mihovilovič, M; Jin, G; Long, E; Zhang, Y-W; Allada, K; Anderson, B; Annand, JRM; Averett, T; Boeglin, W; Bradshaw, P; Camsonne, A; Canan, M; Cates, GD; Chen, C; Chen, JP; Chudakov, E; De Leo, R; Deng, X; Deltuva, A; Deur, A; Dutta, C; El Fassi, L; Flay, D; Frullani, S; Garibaldi, F; Gao, H; Gilad, S; Gilman, R; Glamazdin, O; Golak, J; Golge, S; Gomez, J; Hansen, O; Higinbotham, DW; Holmstrom, T; Huang, J; Ibrahim, H; de Jager, CW; Jensen, E; Jiang, X; Jones, M; Kang, H; Katich, J; Khanal, HP; Kievsky, A; King, P; Korsch, W; LeRose, J; Lindgren, R; Lu, H-J; Luo, W; Marcucci, LE; Markowitz, P; Meziane, M; Michaels, R; Moffit, B; Monaghan, P; Muangma, N; Nanda, S; Norum, BE; Pan, K; Parno, D; Piasetzky, E; Posik, M; Punjabi, V; Puckett, AJR; Qian, X; Qiang, Y; Qui, X; Riordan, S; Saha, A; Sauer, PU; Sawatzky, B; Schiavilla, R; Schoenrock, B; Shabestari, M; Shahinyan, A; Širca, S; Skibiński, R; John, JS; Subedi, R; Sulkosky, V; Tobias, WA; Tireman, W; Urciuoli, GM; Viviani, M; Wang, D; Wang, K; Wang, Y; Watson, J; Wojtsekhowski, B; Witała, H; Ye, Z; Zhan, X; Zhang, Y; Zheng, X; Zhao, B; Zhu, L; (Jefferson Lab Hall A Collaboration),

Published Date

  • December 5, 2014

Published In

Volume / Issue

  • 113 / 23

Start / End Page

  • 232505 -

PubMed ID

  • 25526124

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.113.232505


  • eng