Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2007 Apr 13;98(15):152001.
doi: 10.1103/PhysRevLett.98.152001. Epub 2007 Apr 9.

Compton-scattering cross section on the proton at high momentum transfer

A Danagoulian  1 , V H Mamyan, M Roedelbronn, K A Aniol, J R M Annand, P Y Bertin, L Bimbot, P Bosted, J R Calarco, A Camsonne, C C Chang, T-H Chang, J-P Chen, Seonho Choi, E Chudakov, P Degtyarenko, C W de Jager, A Deur, D Dutta, K Egiyan, H Gao, F Garibaldi, O Gayou, R Gilman, A Glamazdin, C Glashausser, J Gomez, D J Hamilton, J-O Hansen, D Hayes, D W Higinbotham, W Hinton, T Horn, C Howell, T Hunyady, C E Hyde, X Jiang, M K Jones, M Khandaker, A Ketikyan, V Kubarovsky, K Kramer, G Kumbartzki, G Laveissière, J Lerose, R A Lindgren, D J Margaziotis, P Markowitz, K McCormick, D G Meekins, Z-E Meziani, R Michaels, P Moussiegt, S Nanda, A M Nathan, D M Nikolenko, V Nelyubin, B E Norum, K Paschke, L Pentchev, C F Perdrisat, E Piasetzky, R Pomatsalyuk, V A Punjabi, I Rachek, A Radyushkin, B Reitz, R Roche, G Ron, F Sabatié, A Saha, N Savvinov, A Shahinyan, Y Shestakov, S Sirca, K Slifer, P Solvignon, P Stoler, S Tajima, V Sulkosky, L Todor, B Vlahovic, L B Weinstein, K Wang, B Wojtsekhowski, H Voskanyan, H Xiang, X Zheng, L Zhu; Jefferson Lab Hall A Collaboration
Affiliations
Free article

Compton-scattering cross section on the proton at high momentum transfer

A Danagoulian et al. Phys Rev Lett. .
Free article

Abstract

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.

PubMed Disclaimer

Publication types

LinkOut - more resources