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The spin polarizabilities of the nucleon describe how the spin of the nucleonresponds to an incident polarized photon. The most model-independent way tomeasure the nucleon spin polarizabilities is through polarized Comptonscattering. Double-polarized Compton scattering asymmetries on the proton weremeasured in the $\Delta(1232)$ region using circularly polarized incidentphotons and a transversely polarized proton target at the Mainz Microtron. Fitsto asymmetry data were performed using a dispersion model calculation and abaryon chiral perturbation theory calculation, and a separation of all fourproton spin polarizabilities in the multipole basis was achieved. The analysisbased on a dispersion model calculation yields $\gamma_{E1E1} = -3.5 \pm 1.2$,$\gamma_{M1M1}= 3.16 \pm 0.85$, $\gamma_{E1M2} = -0.7 \pm 1.2$, and$\gamma_{M1E2} = 1.99 \pm 0.29$, in units of $10^{-4}$ fm$^4$.

Measurements of Double-Polarized Compton Scattering Asymmetries and Extraction of the Proton Spin Polarizabilities