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EnglishPolarized Compton scattering off the proton is studied within the framework of subtracted dispersion relations for photon energies up to 300 MeV. As a guideline for forthcoming experiments, we focus the attention on the role of the proton's spin polarizabilities and investigate the most favorable conditions to extract them with a minimum of model dependence. We conclude that a complete separation of the four spin polarizabilities is possible, at photon energies between threshold and the Δ(1232) region, provided one can achieve polarization measurements with an accuracy of a few percent.
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http://hdl.handle.net/11571/33801| Titolo: | Proton spin polarizabilities from polarized Compton scattering |
| Autori interni: | PASQUINI, BARBARA |
| Data di pubblicazione: | 2007 |
| Rivista: | PHYSICAL REVIEW. C, NUCLEAR PHYSICS |
| Abstract: | Polarized Compton scattering off the proton is studied within the framework of subtracted dispersion relations for photon energies up to 300 MeV. As a guideline for forthcoming experiments, we focus the attention on the role of the proton's spin polarizabilities and investigate the most favorable conditions to extract them with a minimum of model dependence. We conclude that a complete separation of the four spin polarizabilities is possible, at photon energies between threshold and the Δ(1232) region, provided one can achieve polarization measurements with an accuracy of a few percent. |
| Handle: | http://hdl.handle.net/11571/33801 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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