Measurement of the electric form factor of the neutron through (d)over-right-arrow((e)over-right-arrow, e′n)p at Q2=0.5 (GeV/c)2 -: art. no. 081801

被引:168
作者
Zhu, H [1 ]
Ahmidouch, A
Anklin, H
Arenhövel, H
Armstrong, C
Bernet, C
Boeglin, W
Breuer, H
Brindza, P
Brown, D
Bültmann, S
Carlini, R
Chant, N
Cowley, A
Crabb, D
Danagoulian, S
Day, DB
Eden, T
Ent, R
Farah, Y
Fatemi, R
Garrow, K
Harris, C
Hauger, M
Honegger, A
Jourdan, J
Kaufmann, M
Khandaker, M
Kubon, G
Lichtenstadt, J
Lindgren, R
Lourie, R
Lung, A
Mack, D
Malik, S
Markowitz, P
McFarlane, K
McKee, P
McNulty, D
Milanovich, G
Mitchell, J
Mkrtchyan, H
Mühlbauer, M
Petitjean, T
Prok, Y
Rohe, D
Rollinde, E
Rondon, OA
Roos, P
Sawafta, R
机构
[1] Univ Virginia, Inst Nucl & Particle Phys, Charlottesville, VA 22903 USA
[2] N Carolina Agr & Tech State Univ, Greensboro, NC 27411 USA
[3] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA
[4] Florida Int Univ, Miami, FL 33199 USA
[5] Univ Mainz, Inst Kernphys, D-55099 Mainz, Germany
[6] Univ Basel, CH-4056 Basel, Switzerland
[7] Univ Maryland, College Pk, MD 20742 USA
[8] Norfolk State Univ, Norfolk, VA 23504 USA
[9] Tel Aviv Univ, Sch Phys & Astron, IL-69978 Tel Aviv, Israel
[10] SUNY Stony Brook, Stony Brook, NY 11794 USA
[11] Yerevan Phys Inst, Yerevan 375036, Armenia
[12] Univ Stellenbosch, Dept Phys, ZA-7602 Matieland, South Africa
关键词
D O I
10.1103/PhysRevLett.87.081801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report the first measurement using a solid polarized target of the neutron electric form factor G(E)(n) via (d) over right arrow((e) over right arrow, e' n)p. G(E)(n) was determined from the beam-target asymmetry in the scattering of longitudinally polarized electrons from polarized deuterated ammonia ((ND3)-N-15). The measurement was performed in Hall C at Thomas Jefferson National Accelerator Facility in quasifree kinematics with the target polarization perpendicular to the momentum transfer. The electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle segmented detector. We find G(E)(n) = 0.04632 +/- 0.00616(stat) +/- 0.00341(syst) at Q(2) = 0.495 (GeV/c)(2).
引用
收藏
页码:81801 / 1
页数:4
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