Virtual Compton scattering and the generalized polarizabilities of the proton at Q2=0.92 and 1.76 GeV2

Fonvieille, H.; Laveissière, G.; Degrande, N.; Jaminion, S.; Jutier, C.; Todor, L.; Di Salvo, R.; Van Hoorebeke, L.; Alexa, L.; Anderson, B.; Aniol, K.; Arundell, K.; Audit, G.; Auerbach, L.; Baker, F.; Baylac, M.; Berthot, J.; Bertin, P.; Bertozzi, W.; Bimbot, L.; Boeglin, W.; Brash, E.; Breton, V.; Breuer, H.; Burtin, E.; Calarco, J.; Cardman, L.; Cavata, C.; Chang, C.-C.; Chen, J.-P.; Chudakov, E.; Cisbani, E.; Dale, D.; de Jager, C.; De Leo, R.; Deur, A.; d’Hose, N.; Dodge, G.; Domingo, J.; Elouadrhiri, L.; Epstein, M.; Ewell, L.; Finn, J.; Fissum, K.; Fournier, G.; Frois, B.; Frullani, S.; Furget, C.; Gao, H.; Gao, J.; Garibaldi, F.; Gasparian, A.; Gilad, S.; Gilman, R.; Glamazdin, A.; Glashausser, C.; Gomez, J.; Gorbenko, V.; Grenier, P.; Guichon, P.; Hansen, J.; Holmes, R.; Holtrop, M.; Howell, C.; Huber, G.; Hyde, C.; Incerti, S.; Iodice, M.; Jardillier, J.; Jones, M.; Kahl, W.; Kato, S.; Katramatou, A.; Kelly, J.; Kerhoas, S.; Ketikyan, A.; Khayat, M.; Kino, K.; Kox, S.; Kramer, L.; Kumar, K.; Kumbartzki, G.; Kuss, M.; Leone, A.; LeRose, J.; Liang, M.; Lindgren, R.; Liyanage, N.; Lolos, G.; Lourie, R.; Madey, R.; Maeda, K.; Malov, S.; Manley, D.; Marchand, C.; Marchand, D.; Margaziotis, D.; Markowitz, P.; Marroncle, J.; Martino, J.; McCormick, K.; McIntyre, J.; Mehrabyan, S.; Merchez, F.; Meziani, Z.; Michaels, R.; Miller, G.; Mougey, J.; Nanda, S.; Neyret, D.; Offermann, E.; Papandreou, Z.; Pasquini, B.; Perdrisat, C.; Perrino, R.; Petratos, G.; Platchkov, S.; Pomatsalyuk, R.; Prout, D.; Punjabi, V.; Pussieux, T.; Quémenér, G.; Ransome, R.; Ravel, O.; Real, J.; Renard, F.; Roblin, Y.; Rowntree, D.; Rutledge, G.; Rutt, P.; Saha, A.; Saito, T.; Sarty, A.; Serdarevic, A.; Smith, T.; Smirnov, G.; Soldi, K.; Sorokin, P.; Souder, P.; Suleiman, R.; Templon, J.; Terasawa, T.; Tieulent, R.; Tomasi-Gustaffson, E.; Tsubota, H.; Ueno, H.; Ulmer, P.; Urciuoli, G.; Vanderhaeghen, M.; Van der Meer, R.; Van De Vyver, R.; Vernin, P.; Vlahovic, B.; Voskanyan, H.; Voutier, E.; Watson, J.; Weinstein, L.; Wijesooriya, K.; Wilson, R.; Wojtsekhowski, B.; Zainea, D.; Zhang, W-M.; Zhao, J.; Zhou, Z.-L.

Author(s)

Bertozzi, William; Fissum, K. G.; Gao, Haiyan; Gao, J.; Gilad, Shalev; ... Show more

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Abstract

Virtual Compton scattering (VCS) on the proton has been studied at the Jefferson Laboratory using the exclusive photon electroproduction reaction ep→epγ. This paper gives a detailed account of the analysis which has led to the determination of the structure functions P[subscript LL]−P[subscript TT]/ε and P[subscript LT] and the electric and magnetic generalized polarizabilities (GPs) α[subscript E](Q[superscript 2]) and β[subscript M](Q[superscript 2]) at values of the four-momentum transfer squared Q[superscript 2]=0.92 and 1.76 GeV[superscript 2]. These data, together with the results of VCS experiments at lower momenta, help building a coherent picture of the electric and magnetic GPs of the proton over the full measured Q[superscript 2] range and point to their nontrivial behavior.

Date issued

2012-07

URI

http://hdl.handle.net/1721.1/74182

Department

Massachusetts Institute of Technology. Department of Mechanical Engineering; Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science

Journal

Physical Review C

Publisher

American Physical Society

Citation

Fonvieille, H. et al. “Virtual Compton Scattering and the Generalized Polarizabilities of the Proton at Q[superscript 2]=0.92 and 1.76 GeV[superscript 2].” Physical Review C 86.1 (2012). ©2012 American Physical Society

Version: Final published version

ISSN

0556-2813

1089-490X

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