Investigation of proton-proton short-range correlations via the 12C(e,e'pp) reaction.
We investigated simultaneously the 12C(e,e'p) and 12C(e,e'pp) reactions at Q2=2 (GeV/c)2, xB=1.2, and in an (e, e'p) missing-momentum range from 300 to 600 MeV/c. At these kinematics, with a missing momentum greater than the Fermi momentum of nucleons in a nucleus and far from the delta excitation, short-range nucleon-nucleon correlations are predicted to dominate the reaction. For (9.5+/-2)% of the 12C(e,e'p) events, a recoiling partner proton was observed back-to-back to the 12C(e,e'p) missing-momentum vector, an experimental signature of correlations.
Shneor
R
R
Tel Aviv University, Tel Aviv 69978, Israel.
Monaghan
P
P
Subedi
R
R
Anderson
B D
BD
Aniol
K
K
Annand
J
J
Arrington
J
J
Benaoum
H
H
Benmokhtar
F
F
Bertin
P
P
Bertozzi
W
W
Boeglin
W
W
Chen
J P
JP
Choi
Seonho
S
Chudakov
E
E
Cisbani
E
E
Craver
B
B
de Jager
C W
CW
Feuerbach
R J
RJ
Frullani
S
S
Garibaldi
F
F
Gayou
O
O
Gilad
S
S
Gilman
R
R
Glamazdin
O
O
Gomez
J
J
Hansen
J-O
JO
Higinbotham
D W
DW
Holmstrom
T
T
Ibrahim
H
H
Igarashi
R
R
Jans
E
E
Jiang
X
X
Jiang
Y
Y
Kaufman
L
L
Kelleher
A
A
Kolarkar
A
A
Kuchina
E
E
Kumbartzki
G
G
LeRose
J J
JJ
Lindgren
R
R
Liyanage
N
N
Margaziotis
D J
DJ
Markowitz
P
P
Marrone
S
S
Mazouz
M
M
Meekins
D
D
Michaels
R
R
Moffit
B
B
Nanda
S
S
Perdrisat
C F
CF
Piasetzky
E
E
Potokar
M
M
Punjabi
V
V
Qiang
Y
Y
Reinhold
J
J
Reitz
B
B
Ron
G
G
Rosner
G
G
Saha
A
A
Sawatzky
B
B
Shahinyan
A
A
Sirca
S
S
Slifer
K
K
Solvignon
P
P
Sulkosky
V
V
Thompson
N
N
Ulmer
P E
PE
Urciuoli
G M
GM
Voutier
E
E
Wang
K
K
Watson
J W
JW
Weinstein
L B
LB
Wojtsekhowski
B
B
Wood
S
S
Yao
H
H
Zheng
X
X
Zhu
L
L