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Compton-scattering cross section on the proton at high momentum transfer. 2007
A Danagoulian, and
V H Mamyan, and
M Roedelbronn, and
K A Aniol, and
J R M Annand, and
P Y Bertin, and
L Bimbot, and
P Bosted, and
J R Calarco, and
A Camsonne, and
C C Chang, and
T-H Chang, and
J-P Chen, and
Seonho Choi, and
E Chudakov, and
P Degtyarenko, and
C W de Jager, and
A Deur, and
D Dutta, and
K Egiyan, and
H Gao, and
F Garibaldi, and
O Gayou, and
R Gilman, and
A Glamazdin, and
C Glashausser, and
J Gomez, and
D J Hamilton, and
J-O Hansen, and
D Hayes, and
D W Higinbotham, and
W Hinton, and
T Horn, and
C Howell, and
T Hunyady, and
C E Hyde, and
X Jiang, and
M K Jones, and
M Khandaker, and
A Ketikyan, and
V Kubarovsky, and
K Kramer, and
G Kumbartzki, and
G Laveissière, and
J Lerose, and
R A Lindgren, and
D J Margaziotis, and
P Markowitz, and
K McCormick, and
D G Meekins, and
Z-E Meziani, and
R Michaels, and
P Moussiegt, and
S Nanda, and
A M Nathan, and
D M Nikolenko, and
V Nelyubin, and
B E Norum, and
K Paschke, and
L Pentchev, and
C F Perdrisat, and
E Piasetzky, and
R Pomatsalyuk, and
V A Punjabi, and
I Rachek, and
A Radyushkin, and
B Reitz, and
R Roche, and
G Ron, and
F Sabatié, and
A Saha, and
N Savvinov, and
A Shahinyan, and
Y Shestakov, and
S Sirca, and
K Slifer, and
P Solvignon, and
P Stoler, and
S Tajima, and
V Sulkosky, and
L Todor, and
B Vlahovic, and
L B Weinstein, and
K Wang, and
B Wojtsekhowski, and
H Voskanyan, and
H Xiang, and
X Zheng, and
L Zhu, and
University of Illinois, Urbana-Champaign, Illinois 61801, USA.
Cross-section values for Compton scattering on the proton were measured at 25 kinematic settings over the range s=5-11 and -t=2-7 GeV2 with a statistical accuracy of a few percent. The scaling power for the s dependence of the cross section at fixed center-of-mass angle was found to be 8.0+/-0.2, strongly inconsistent with the prediction of perturbative QCD. The observed cross-section values are in fair agreement with the calculations using the handbag mechanism, in which the external photons couple to a single quark.
| UI | MeSH Term | Description | Entries |
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Related Publications
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C C Chang, and
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J R M Annand, and
P Y Bertin, and
L Bimbot, and
P Bosted, and
J R Calarco, and
A Camsonne, and
C C Chang, and
T-H Chang, and
J-P Chen, and
Seonho Choi, and
E Chudakov, and
P Degtyarenko, and
C W de Jager, and
A Deur, and
D Dutta, and
K Egiyan, and
H Gao, and
F Garibaldi, and
O Gayou, and
R Gilman, and
A Glamazdin, and
C Glashausser, and
J Gomez, and
D J Hamilton, and
J-O Hansen, and
D Hayes, and
D W Higinbotham, and
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M Khandaker, and
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K Kramer, and
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P Markowitz, and
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K Slifer, and
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J Gomez, and
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M K Jones, and
M Khandaker, and
A Ketikyan, and
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J-P Chen, and
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K Egiyan, and
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A Glamazdin, and
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D Hayes, and
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C E Hyde, and
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R A Lindgren, and
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E Piasetzky, and
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V A Punjabi, and
I Rachek, and
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B Reitz, and
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G Ron, and
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K Slifer, and
P Solvignon, and
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C C Chang, and
T-H Chang, and
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Seonho Choi, and
E Chudakov, and
P Degtyarenko, and
C W de Jager, and
A Deur, and
D Dutta, and
K Egiyan, and
H Gao, and
F Garibaldi, and
O Gayou, and
R Gilman, and
A Glamazdin, and
C Glashausser, and
J Gomez, and
D J Hamilton, and
J-O Hansen, and
D Hayes, and
D W Higinbotham, and
W Hinton, and
T Horn, and
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T Hunyady, and
C E Hyde, and
X Jiang, and
M K Jones, and
M Khandaker, and
A Ketikyan, and
V Kubarovsky, and
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G Kumbartzki, and
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R Michaels, and
P Moussiegt, and
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B E Norum, and
K Paschke, and
L Pentchev, and
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R Pomatsalyuk, and
V A Punjabi, and
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A Shahinyan, and
Y Shestakov, and
S Sirca, and
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P Solvignon, and
P Stoler, and
S Tajima, and
V Sulkosky, and
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K Wang, and
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L Zhu, and
June 1995,
Physical review letters,
