| Literature DB >> 15447252 |
G Laveissière1, L Todor, N Degrande, S Jaminion, C Jutier, R Di Salvo, L Van Hoorebeke, L C Alexa, B D Anderson, K A Aniol, K Arundell, G Audit, L Auerbach, F T Baker, M Baylac, J Berthot, P Y Bertin, W Bertozzi, L Bimbot, W U Boeglin, E J Brash, V Breton, H Breuer, E Burtin, J R Calarco, L S Cardman, C Cavata, C-C Chang, J-P Chen, E Chudakov, E Cisbani, D S Dale, C W de Jager, R De Leo, A Deur, N d'Hose, G E Dodge, J J Domingo, L Elouadrhiri, M B Epstein, L A Ewell, J M Finn, K G Fissum, H Fonvieille, G Fournier, B Frois, S Frullani, C Furget, H Gao, J Gao, F Garibaldi, A Gasparian, S Gilad, R Gilman, A Glamazdin, C Glashausser, J Gomez, V Gorbenko, P Grenier, P A M Guichon, J O Hansen, R Holmes, M Holtrop, C Howell, G M Huber, C E Hyde-Wright, S Incerti, M Iodice, J Jardillier, M K Jones, W Kahl, S Kato, A T Katramatou, J J Kelly, S Kerhoas, A Ketikyan, M Khayat, K Kino, S Kox, L H Kramer, K S Kumar, G Kumbartzki, M Kuss, A Leone, J J LeRose, M Liang, R A Lindgren, N Liyanage, G J Lolos, R W Lourie, R Madey, K Maeda, S Malov, D M Manley, C Marchand, D Marchand, D J Margaziotis, P Markowitz, J Marroncle, J Martino, K McCormick, J McIntyre, S Mehrabyan, F Merchez, Z E Meziani, R Michaels, G W Miller, J Y Mougey, S K Nanda, D Neyret, E A J M Offermann, Z Papandreou, B Pasquini, C F Perdrisat, R Perrino, G G Petratos, S Platchkov, R Pomatsalyuk, D L Prout, V A Punjabi, T Pussieux, G Quémenér, R D Ransome, O Ravel, J S Real, F Renard, Y Roblin, D Rowntree, G Rutledge, P M Rutt, A Saha, T Saito, A J Sarty, A Serdarevic, T Smith, G Smirnov, K Soldi, P Sorokin, P A Souder, R Suleiman, J A Templon, T Terasawa, R Tieulent, E Tomasi-Gustaffson, H Tsubota, H Ueno, P E Ulmer, G M Urciuoli, M Vanderhaeghen, R Van De Vyver, R L J Van der Meer, P Vernin, B Vlahovic, H Voskanyan, E Voutier, J W Watson, L B Weinstein, K Wijesooriya, R Wilson, B B Wojtsekhowski, D G Zainea, W-M Zhang, J Zhao, Z-L Zhou.
Abstract
We report a virtual Compton scattering study of the proton at low c.m. energies. We have determined the structure functions P(LL)-P(TT)/epsilon and P(LT), and the electric and magnetic generalized polarizabilities (GPs) alpha(E)(Q2) and beta(M)(Q2) at momentum transfer Q(2)=0.92 and 1.76 GeV2. The electric GP shows a strong falloff with Q2, and its global behavior does not follow a simple dipole form. The magnetic GP shows a rise and then a falloff; this can be interpreted as the dominance of a long-distance diamagnetic pion cloud at low Q2, compensated at higher Q2 by a paramagnetic contribution from piN intermediate states.Entities:
Year: 2004 PMID： 15447252 DOI： 10.1103/PhysRevLett.93.122001
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161