Measurements of the electric form factor of the neutron up to Q^2=3.4 GeV^2 using the reaction 3He(pol (e(pol), e’n) pp

Riordan, S. et al. (2010) Measurements of the electric form factor of the neutron up to Q^2=3.4 GeV^2 using the reaction 3He(pol (e(pol), e’n) pp. Physical Review Letters, 105(26), (doi: 10.1103/PhysRevLett.105.262302)

Abstract

The electric form factor of the neutron was determined from studies of the reaction (3)(He) over right arrowe((e) over right arrow, e ' n)pp in quasielastic kinematics in Hall A at Jefferson Lab. Longitudinally polarized electrons were scattered off a polarized target in which the nuclear polarization was oriented perpendicular to the momentum transfer. The scattered electrons were detected in a magnetic spectrometer in coincidence with neutrons that were registered in a large-solid-angle detector. More than doubling the Q(2) range over which it is known, we find G(E)(n) = 0.0236 +/- 0.0017(stat) +/- 0.0026(syst), 0.0208 +/- 0. 0024 +/- 0.0019, and 0.0147 +/- 0.0020 +/- 0.0014 for Q(2) = 1.72, 2.48, and 3.41 GeV(2), respectively.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Protopopescu, Dr Dan and Annand, Dr John and Rosner, Professor Guenther
• Authors: Riordan, S., Abrahamyan, S., Craver, B., Kelleher, A., Kolarkar, A., Miller, J., Cates, G.D., Liyanage, N., Wojtsekhowski, B., Acha, A., Allada, K., Anderson, B., Aniol, K.A., Annand, J.R.M., Arrington, J., Averett, T., Beck, A., Bellis, M., Boeglin, W., Breuer, H., Calarco, J.R., Camsonne, A., Chen, J.P., Chudakov, E., Coman, L., Crowe, B., Cusanno, F., Day, D., Degtyarenko, P., Dolph, P.A.M., Dutta, C., Ferdi, C., Fernandez-Ramirez, C., Feuerbach, R., Fraile, L.M., Franklin, G., Frullani, S., Fuchs, S., Garibaldi, F., Gevorgyan, N., Gilman, R., Glamazdin, A., Gomez, J., Grimm, K., Hansen, J.-O., Herraiz, J.L., Higinbotham, D.W., Holmes, R., Holmstrom, T., Howell, D., de Jager, C.W., Jiang, X., Jones, M.K., Katich, J., Kaufman, L.J., Khandaker, M., Kelly, J.J., Kiselev, D., Korsch, W., LeRose, J., Lindgren, R., Markowitz, P., Margaziotis, D.J., Beck, S.M.-T., Mayilyan, S., McCormick, K., Meziani, Z.-E., Michaels, R., Moffit, B., Nanda, S., Nelyubin, V., Ngo, T., Nikolenko, D.M., Norum, B., Pentchev, L., Perdrisat, C.F., Piasetzky, E., Pomatsalyuk, R., Protopopescu, D., Puckett, A.J.R., Punjabi, V.A., Qian, X., Qiang, Y., Quinn, B., Rachek, I., Ransome, R.D., Reimer, P.E., Reitz, B., Roche, J., Ron, G., Rondon, O., Rosner, G., Saha, A., Sargsian, M.M., Sawatzky, B., Segal, J., Shabestari, M., Shahinyan, A., Shestakov, Y., Singh, J., Sirca, S., Souder, P., Stepanyan, S., Stibunov, V., Sulkosky, V., Tajima, S., Tobias, W.A., Udias, J.M., Urciuoli, G.M., Vlahovic, B., Voskanyan, H., Wang, K., Wesselmann, F.R., Vignote, J.R., Wood, S.A., Wright, J., Yao, H., and Zhu, X.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review Letters
• Publisher: American Physical Society
• ISSN: 0031-9007
• ISSN (Online): 1079-7114