Measurement of Double-Polarization Asymmetries in the Quasielastic [3→ over He]([→ over e], e'd) Process

Measurement of Double-Polarization Asymmetries in the Quasielastic [3→ over He]([→ over e], e'd) Process

We present a precise measurement of double-polarization asymmetries in the [3→ over He]([→ over e], e'd) reaction. This particular process is a uniquely sensitive probe of hadron dynamics in [superscript 3]He and the structure of the underlying electromagnetic currents. The measurements have be...

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मुख्य लेखकों: Jin, G., Long, E., Zhang, Y.-W., Allada, Kalyan C., Anderson, B., Annand, J. R. M., Averett, T., Boeglin, W., Bradshaw, P. C., Camsonne, A., Canan, M., Cates, G. D., Chen, C., Chen, J. P., Chudakov, E., De Leo, R., Deng, X., Deltuva, A., Deur, A., Dutta, C., El Fassi, L., Flay, D., Frullani, S., Garibaldi, F., Gao, H., Gilman, R., Glamazdin, O., Golak, J., Golge, S., Gomez, J., Hansen, O., Higinbotham, D. W., Holmstrom, T., Huang, J., Ibrahim, H. F., de Jager, C. W., Jensen, E., Jiang, X., Jones, M., Kang, H., Katich, J., Khanal, H. P., Kievsky, A., King, P., Korsch, W., LeRose, J. J., Lindgren, R., Lu, H.-J., Luo, W., Marcucci, L. E., Markowitz, P., Meziane, M., Michaels, R., Moffit, Bryan J., Monaghan, Peter, Nanda, S., Norum, B. E., Parno, D., Piasetzky, E., Posik, M., Punjabi, V., Puckett, A. J. R., Qian, X., Qiang, Y., Qui, X., Riordan, S., Saha, A., Sauer, P. U., Sawatzky, B., Schiavilla, R., Schoenrock, B., Shabestari, M., Shahinyan, A., Širca, S., Skibiński, R., St. John, J., Subedi, R., Sulkosky, V., Tobias, W. A., Tireman, W., Urciuoli, G. M., 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., Gilad, Shalev, Mihovilovic, M., Muangma, Navaphon, Pan, Kai, Ph. D. Massachusetts Institute of Technology
अन्य लेखक: Massachusetts Institute of Technology. Department of Physics
स्वरूप: लेख
भाषा:English
प्रकाशित: American Physical Society 2014
ऑनलाइन पहुंच:http://hdl.handle.net/1721.1/92308
https://orcid.org/0000-0001-9930-5063
https://orcid.org/0000-0001-7871-4108
https://orcid.org/0000-0002-6261-6172
विवरण
सारांश:We present a precise measurement of double-polarization asymmetries in the [3→ over He]([→ over e], e'd) reaction. This particular process is a uniquely sensitive probe of hadron dynamics in [superscript 3]He and the structure of the underlying electromagnetic currents. The measurements have been performed in and around quasielastic kinematics at Q[superscript 2] = 0.25(GeV/c)[superscript 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[subscript 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.

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