Measurement of the electric form factor of the neutron at Q2=0.5 and 1.0 GeV2/c2.
The electric form factor of the neutron was determined from measurements of the d-->(e-->,e'n)p reaction for quasielastic kinematics. Polarized electrons were scattered off a polarized deuterated ammonia (15ND3) target in which the deuteron polarization was perpendicular to the momentum transfer. The scattered electrons were detected in a magnetic spectrometer in coincidence with neutrons in a large solid angle detector. We find G(n)(E)=0.0526+/-0.0033(stat)+/-0.0026(sys) and 0.0454+/-0.0054+/-0.0037 at Q(2)=0.5 and 1.0 (GeV/c)(2), respectively.
Warren
G
G
Universität Basel, CH-4056 Basel, Switzerland.
Wesselmann
F
F
Zhu
H
H
McKee
P
P
Savvinov
N
N
Zeier
M
M
Aghalaryan
A
A
Ahmidouch
A
A
Arenhövel
H
H
Asaturyan
R
R
Ben-Dayan
I
I
Bloch
F
F
Boeglin
W
W
Boillat
B
B
Breuer
H
H
Brower
J
J
Carasco
C
C
Carl
M
M
Carlini
R
R
Cha
J
J
Chant
N
N
Christy
E
E
Cole
L
L
Coman
L
L
Coman
M
M
Crabb
D
D
Danagoulian
S
S
Day
D
D
Duek
K
K
Dunne
J
J
Elaasar
M
M
Ent
R
R
Farrell
J
J
Fatemi
R
R
Fawcett
D
D
Fenker
H
H
Forest
T
T
Garrow
K
K
Gasparian
A
A
Goussev
I
I
Gueye
P
P
Harvey
M
M
Hauger
M
M
Herrera
R
R
Hu
B
B
Jaegle
I
I
Jones
M
M
Jourdan
J
J
Keith
C
C
Kelly
J
J
Keppel
C
C
Khandaker
M
M
Klein
A
A
Klimenko
A
A
Kramer
L
L
Krusche
B
B
Kuhn
S
S
Liang
Y
Y
Lichtenstadt
J
J
Lindgren
R
R
Liu
J
J
Lung
A
A
Mack
D
D
Maclachlan
G
G
Markowitz
P
P
McNulty
D
D
Meekins
D
D
Mitchell
J
J
Mkrtchyan
H
H
Nasseripour
R
R
Niculescu
I
I
Normand
K
K
Norum
B
B
Opper
A
A
Piasetzky
E
E
Pierce
J
J
Pitt
M
M
Prok
Y
Y
Raue
B
B
Reinhold
J
J
Roche
J
J
Rohe
D
D
Rondon
O
O
Sacker
D
D
Sawatzky
B
B
Seely
M
M
Sick
I
I
Simicevic
N
N
Smith
C
C
Smith
G
G
Steinacher
M
M
Stepanyan
S
S
Stout
J
J
Tadevosyan
V
V
Tajima
S
S
Tang
L
L
Testa
G
G
Trojer
R
R
Vlahovic
B
B
Vulcan
B
B
Wang
K
K
Wells
S
S
Woehrle
H
H
Wood
S
S
Yan
C
C
Yanay
Y
Y
Yuan
L
L
Yun
J
J
Zihlmann
B
B