Q(2) Evolution Of The Generalized Gerasimov-Drell-Hearn Integral For The Neutron Using A He-3

M. Amarian,L. Auerbach,T. Averett,J. Berthot,P. Bertin,W. Bertozzi,E. Brash,D. Brown,E. Burtin,J. R. Calarco,G. D. Cates,Z. Chai,J.-P. Chen,Seonho Choi,E. Chudakov,E. Cisbani,C. W. de Jager,A. Deur,R. DiSalvo,S. Dieterich,M. Finn,K. Fissum,H. Fonvieille,S. Frullani,H. Gao,J. Gao,F. Garibaldi,A. Gasparian,S. Gilad,R. Gilman,A. Glamazdin,C. Glashausser,E. Goldberg,J. Gomez,V. Gorbenko,J.-O. Hansen,F. W. Hersman,R. Holmes,G. M. Huber,E. W. Hughes,B. Humensky,S. Incerti,M. Iodice,S. Jensen,X. Jiang,C. Jones,G. M. Jones,M. Jones,C. Jutier,A. Ketikyan,I. Kominis,W. Korsch,K. Kramer,K. S. Kumar,G. Kumbartzki,M. Kuss,E. Lakuriqi,G. Laveissiere,J. Lerose,M. Liang,N. Liyanage,G. Lolos,S. Malov,J. Marroncle,K. McCormick,R. McKeown,Z.-E. Meziani,R. Michaels,J. Mitchell,Z. Papandreou,T. Pavlin,G. Petratos,D. Pripstein,D. Prout,R. Ransome,Y. Roblin,D. Rowntree,M. Rvachev,F. Sabatie,A. Saha,K. Slifer,P. A. Souder,T. Saito,S. Strauch,K. Takahashi,S. Teijiro,L. Todor,H. Tsubota,H. Ueno,G. Urciuoli,R. Van der Meer,P. Vernin,H. Voskanian,B. Wojtsekhowski,F. Xiong,W. Xu,J.-C. Yang,B. Zhang,P. Zolnierczuk,J.-C. Yang,B. Zhang,P. Zolnierczuk

PHYSICAL REVIEW LETTERS（2002）

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Abstract

We present data on the inclusive scattering of polarized electrons from a polarized He-3 target at energies from 0.862 to 5.06 GeV, obtained at a scattering angle of 15.5degrees. Our data include measurements from the quasielastic peak, through the nucleon resonance region, and beyond, and were used to determine the virtual photon cross-section difference sigma(1/2)-sigma(3/2). We extract the extended Gerasimov-Drell-Hearn integral for the neutron in the range of four-momentum transfer squared Q(2) of 0.1-0.9 GeV2.

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Key words

momentum transfer,cross section

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