Measurements of the Electric Form Factor of the Neutron up to Q2 = 3.4 GeV2 using the Reaction He-3(e,e'n)pp

The electric form factor of the neutron was determined from studies of the reaction \rea{} in quasi-elastic 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 tra...

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Published in:Physical review letters Vol. 105; no. 26
Main Authors: Riordan, Seamus, Craver, Brandon, Kelleher, Aidan, Kolarkar, Ameya, Miller, Jonathan, Cates, Gordon, Liyanage, Nilanga, Quimper, Armando Acha, Allada, Kalyan, Anderson, Byron, Aniol, Konrad, Annand, John, Averett, Todd, Beck, Arie, Bellis, Matthew, Breuer, Herbert, Calarco, John, Chen, Jian-Ping, Chudakov, Eugene, Coman, Luminita, Crowe, Benjamin, Cusanno, Francesco, Day, Donal, Degtiarenko, Pavel, Dolph, P.A.M., Dutta, Chiranjib, Ferdi, Catherine, Fernandez-Ramirez, Cezar, Feuerbach, Robert, Fraile Prieto, Luis, Franklin, Gregg, Frullani, Salvatore, Garibaldi, Franco, Gevorgyan, Nerses, Gilman, Ronald, Glazmazdin, Oleksandr, Grimm, Klaus, Hansen, Jens-Ole, Herraiz, Joaquin Lopez, Holmes, Richard, Holmstrom, Timothy, Jiang, Xiaodong, Katich, Joseph, Kaufman, Lisa, Khandaker, Mahbubul, Kelly, James, Kiselev, Daniela, Korsch, Wolfgang, LeRose, John, Markowitz, Pete, Margaziotis, Demetrius, May-Tal Beck, Sharon, Mayilyan, Samvel, McCormick, Kathy, Meziani, Zein-Eddine, Michaels, Robert, Moffit, Bryan, Nanda, Sirish, Nelyubin, Vladimir, Ngo, Tim, Nikolenko, Dmitri, Norum, Blaine, Pentchev, Lubomir, Piasetzky, Eliazer, Protopoescu, Dan, Puckett, Andrew, Punjabi, Vina, Qian, XIn, Qiang, Yi, Quinn, Brian, Rachek, Igor, Ransome, Ronald, Reimer, Paul, Reitz, Bodo, Roche, Julie, Ron, Guy, Rondon-Aramayo, Oscar, Rosner, Guenther, Saha, Arunava, Sargsian, Misak, Sawatzky, Bradley, Shabestari, Mitra Hashemi, Shahinyan, Albert, Singh, Jaideep, Sirca, Simon, Stepanyan, Samuel, Stibunov, Victor, Sulkosky, Vince, Sulkosky, Vincent, Tajima, Shigeyuki, Tobias, William, Moinelo, Jose Udias, Urciuoli, Guido, Vlahovic, Branislav, Voskanyan, Hakob, Wang, Kebin, Wesselmann, Frank, Vignote, Javier Rodriguez, Wood, Stephen, Zhu, Zianfang
Format: Journal Article
Language:English
Published: United States 01-12-2010
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Summary:The electric form factor of the neutron was determined from studies of the reaction \rea{} in quasi-elastic 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 \GEn{}$ = 0.0225 \pm 0.0017 (stat) \pm 0.0024 (syst)$, $0.0200 \pm 0.0023 \pm 0.0018$, and $0.0142 \pm 0.0019 \pm 0.0013$ for $Q^2$ = 1.72, 2.48, and 3.41~\gevsq, respectively.
Bibliography:USDOE Office of Science (SC)
AC05-06OR23177
JLAB-PHY-10-1201; DOE/OR/23177-1251; arXiv:1008.1738
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.105.262302