Extraction of the Neutron Magnetic Form Factor from Quasi-Elastic 3He(pol)(e(pol),e') at Q^2 = 0.1 - 0.6 (GeV/c)^2

We have measured the spin-dependent transverse asymmetry, A_T', in quasi-elastic inclusive electron scattering from polarized 3He with high precision at Q^2 = 0.1 to 0.6 (GeV/c)^2. The neutron magnetic form factor, GMn, was extracted at Q^2 = 0.1 and 0.2 (GeV/c)^2 using a non-relativistic Fadde...

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Veröffentlicht in:	Physical review. C 2007, Vol.75
Hauptverfasser:	Anderson, B., Auberbach, L., Averett, T., Bertozzi, W., Black, T., Calarco, J., Cardman, L., Cates, G.D., Chai, Z.W., Chen, J.P., Choi, Seonho, Chudakov, E., Churchwell, S., Corrado, G.S., Crawford, C., Dale, D., Deur, A., Djawotho, P., Dutta, D., Finn, J.M., Gao, H., Gilman, R., Glamazdin, A.V., Glashausser, C., Glockle, W., Golak, J., Gomez, J., Gorbenko, V.G., Hansen, J.O., Hersman, F.W., Higinbotham, D.W., Holmes, R., Howell, C.R., Hughes, E., Humensky, B., Incerti, S., de Jager, C.W., Jensen, J.S., Jiang, X., Jones, C.E., Jones, M. J., Kahl, R., Kamada, H., Kievsky, A., Kominis, I., Korsch, W., Kramer, K., Kumbartzki, G., Kuss, M., Lakuriqi, E., Liang, M., Liyanage, N., Lerose, J., Malov, S., Margaziotis, D.J., Martin, J.W., Mccormick, K., Mckeown, R.D., Mcilhany, K., Meziani, Z.E., Michaels, R., Miller, G.W., Mitchell, J., Nanda, S., Pace, E., Pavlin, T., Petratos, G.G., Pomatsalyuk, R.I., Pripstein, D., Prout, D., Ransome, R.D., Roblin, Y., Rvachev, M., Saha, A., Salmè, G., Schnee, M., Seely, J., Shin, T., Slifer, K., Souder, P.A., Strauch, S., Suleiman, R., Sutter, M., Tipton, B., Todor, L., Viviani, M., Vlahovic, B., Watson, J., Williamson, C.F., Witala, H., Wojtsekhowski, B., Xiong, F., Xu, Wei-Jiang, Yeh, J., Zolnierczuk, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Nuclear Experiment Physics
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Zusammenfassung:	We have measured the spin-dependent transverse asymmetry, A_T', in quasi-elastic inclusive electron scattering from polarized 3He with high precision at Q^2 = 0.1 to 0.6 (GeV/c)^2. The neutron magnetic form factor, GMn, was extracted at Q^2 = 0.1 and 0.2 (GeV/c)^2 using a non-relativistic Faddeev calculation that includes both final-state interactions (FSI) and meson-exchange currents (MEC). In addition, GMn was extracted at Q^2 = 0.3 to 0.6 (GeV/c)^2 using a Plane Wave Impulse Approximation calculation. The accuracy of the modeling of FSI and MEC effects was tested and confirmed with a precision measurement of the spin-dependent asymmetry in the breakup threshold region of the 3He(pol)(e(pol),e') reaction. The total relative uncertainty of the extracted GMn data is approximately 3%. Close agreement was found with other recent high-precision GMn data in this Q^2 range.
ISSN:	2469-9985 2469-9993
DOI:	10.1103/PhysRevC.75.034003