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# Measurement of the generalized polarizabilities of the proton in virtual compton scattering at $Q^2$ = 0.92 and 1.76 Gev$^2$

Abstract : We report a Virtual Compton Scattering study of the proton in Hall A at the Thomas Jefferson National Accelerator Facility at low CM energies. We have determined the structure functions $P_{LL}-P_{TT}/\epsilon$ and $P_{LT}$, and the electric and magnetic Generalized Polarizabilities (GP) $\alpha_E(Q2)$ and $\beta_M(Q2)$ at momentum transfer Q2= 0.92 and 1.76 GeV2. All these observables show a strong fall-off with Q2, and neither the electric nor magnetic GP follows a simple dipole form.
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http://hal.in2p3.fr/in2p3-00021750
Contributeur : Lpsc Bibliotheque <>
Soumis le : mercredi 1 décembre 2004 - 09:03:08
Dernière modification le : mardi 19 mai 2020 - 09:14:12

### Citation

G. Laveissiere, L. Todor, N. Degrande, S. Jaminion, C. Jutier, et al.. Measurement of the generalized polarizabilities of the proton in virtual compton scattering at $Q^2$ = 0.92 and 1.76 Gev$^2$. Physical Review Letters, American Physical Society, 2004, 93, 122001 (5 p.). ⟨10.1103/PhysRevLett.93.122001⟩. ⟨in2p3-00021750⟩

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