Measurements of the Electric Form Factor of the Neutron up to Q(2)=3.4 GeV2 Using the Reaction (3)(He)over-right-arrowe((e)over-right-arrow, e ' n)pp

Riordan, S.; Abrahamyan, S.; Craver, B.; Kelleher, A.; Kolarkar, A.; Miller, J.; Cates, G.; Liyanage, N.; Wojtsekhowski, B.; Acha, A.; Allada, K.; Anderson, B.; Aniol, K.; Annand, J.; Arrington, J.; Averett, T.; Beck, A.; Bellis, M.; Boeglin, W.; Breuer, H.; Calarco, J.; Camsonne, A.; Chen, J.; Chudakov, E.; Coman, L.; Crowe, B.; Cusanno, F.; Day, D.; Degtyarenko, P.; Dolph, P.; Dutta, C.; Ferdi, C.; Fernández-Ramírez, C.; Feuerbach, R.; Fraile, L.; Franklin, G.; Frullani, S.; Fuchs, S.; Garibaldi, F.; Gevorgyan, N.; Gilman, R.; Glamazdin, A.; Gomez, J.; Grimm, K.; Hansen, J.-O.; Herraiz, J.; Higinbotham, D.; Holmes, R.; Holmstrom, T.; Howell, D.; de Jager, C.; Jiang, X.; Jones, M.; Katich, J.; Kaufman, L.; Khandaker, M.; Kelly, J.; Kiselev, D.; Korsch, W.; LeRose, J.; Lindgren, R.; Markowitz, P.; Margaziotis, D.; Beck, S.; Mayilyan, S.; McCormick, K.; Meziani, Z.-E.; Michaels, R.; Moffit, B.; Nanda, S.; Nelyubin, V.; Ngo, T.; Nikolenko, D.; Norum, B.; Pentchev, L.; Perdrisat, C.; Piasetzky, E.; Pomatsalyuk, R.; Protopopescu, D.; Puckett, A.; Punjabi, V.; Qian, X.; Qiang, Y.; Quinn, B.; Rachek, I.; Ransome, R.; Reimer, P.; Reitz, B.; Roche, J.; Ron, G.; Rondon, O.; Rosner, G.; Saha, A.; Sargsian, M.; Sawatzky, B.; Segal, J.; Shabestari, M.; Shahinyan, A.; Shestakov, Yu.; Singh, J.; Širca, S.; Souder, P.; Stepanyan, S.; Stibunov, V.; Sulkosky, V.; Tajima, S.; Tobias, W.; Udias, J.; Urciuoli, G.; Vlahovic, B.; Voskanyan, H.; Wang, K.; Wesselmann, F.; Vignote, J.; Wood, S.; Wright, J.; Yao, H.; Zhu, X.

Author(s)

Beck, A.; Beck, S. May-Tal; Puckett, Andrew James R.; Qiang, Yi; Sirca, Simon; ... Show more

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Abstract

The electric form factor of the neutron was determined from studies of the reaction 3He⃗(e⃗,e′n)pp [superscript 3 He superscript right arrow (e superscript right arrow, e prime 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 Q2 [Q superscript 2] range over which it is known, we find GEn=0.0236±0.0017(stat)±0.0026(syst) [G subscript E superscript n =0.0236±0.0017(stat)±0.0026(syst)] , 0.0208±0.0024±0.0019, and 0.0147±0.0020±0.0014 for Q2=1.72 [Q superscript 2 = 1.72], 2.48, and 3.41 GeV2 [GeV superscript 2], respectively.

Date issued

2010-12

URI

http://hdl.handle.net/1721.1/65094

Department

Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science

Journal

Physical review letters

Publisher

American Physical Society

Citation

Riordan, S. et al. “Measurements of the Electric Form Factor of the Neutron up to Q^{2}=3.4 GeV^{2} Using the Reaction ^{3}He[over →](e[over →],e^{′}n)pp.” Physical Review Letters 105.26 (2010) : n. pag. © 2010 The American Physical Society

Version: Final published version

ISSN

0031-9007

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