Graviton Loop Amplitudes in String Theory

by Marcus Berg (SU Fysikum)

Thursday 21 May 2015, 13:15 → 14:15 Europe/Stockholm

FA 31

I will review arXiv:1407.0027 on loop amplitudes of moduli fields (internal gravitons) and their implications for string effective actions with minimal supersymmetry in four dimensions. I will also discuss work in progress on (external) graviton loop amplitudes and related curvature corrections, and try to relate these amplitudes to the hybrid/pure spinor formalism.