Measurement of double-polarization asymmetries in the quasi-elastic (3)(H) over arrowe((e) over arrow, e ' p) process

Academic Article

Abstract

  • We report on a precise measurement of double-polarization asymmetries in electron-induced breakup of $^3\mathrm{He}$ proceeding to $\mathrm{pd}$ and $\mathrm{ppn}$ final states, performed in quasi-elastic kinematics at $Q^2 = 0.25\,(\mathrm{GeV}/c)^2$ for missing momenta up to $250\,\mathrm{MeV}/c$. These observables represent highly sensitive tools to investigate the electromagnetic and spin structure of $^3\mathrm{He}$ and the relative importance of two- and three-body effects involved in the breakup reaction dynamics. The measured asymmetries cannot be satisfactorily reproduced by state-of-the-art calculations of $^3\mathrm{He}$ unless their three-body segment is adjusted, indicating that the spin-dependent part of the nuclear interaction governing the three-body breakup process is much smaller than previously thought.

    • Authors

  • Mihovilovic, M
  • Jin, G
  • Long, E
  • Zhang, Y-W
  • Allada, K
  • Anderson, B
  • Annand, JRM
  • Averett, T
  • Bertozzi, W
  • 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
  • Kamada, H
  • 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, DS
  • 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
  • Sirca, S
  • Skibinski, R
  • St John, J
  • Subedi, R
  • Sulkosky, V
  • Tireman, W
  • Tobias, WA
  • Topolnicki, K
  • Urciuoli, GM
  • Viviani, M
  • Wang, D
  • Wang, K
  • Wang, Y
  • Watson, J
  • Wojtsekhowski, B
  • Witala, H
  • Ye, Z
  • Zhan, X
  • Zhang, Y
  • Zheng, X
  • Zhao, B
  • Zhu, L
  • Collaboration, Jefferson Lab Hall A

    • Status

    Publication Date

  • January 10, 2019

    • Has Subject Area

    Published In

    Keywords

  • Double-polarization asymmetry
  • Helium-3 nucleus
  • Proton knock-out

    • Digital Object Identifier (doi)

    Start Page

  • 117

    • End Page

  • 121

    • Volume

  • 788