Proton spin polarizabilities from polarized Compton scattering
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 $$\Delta(1232)$$ region, provided one can achieve polarization measurements with an accuracy of a few percent.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE - Office of Energy Research (ER)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 903052
- Report Number(s):
- JLAB-THY-07-633; DOE/OR/23177-0043; arXiv:0705.0282v1 [hep-ph]; TRN: US0703098
- Journal Information:
- Phys.Rev.C, Vol. 76
- Country of Publication:
- United States
- Language:
- English
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