1302.5024 (Ehsan Hatefi)

Closed string Ramond-Ramond proposed higher derivative interactions on
fermionic amplitudes in IIB    [PDF]

Ehsan Hatefi

The closed form of the correlation functions and the complete form of the amplitude of one closed string Ramond-Ramond (C-field), two fermionic strings and one scalar field in IIB super string theory has been computed in detail. Deriving $$ through using suitable gauge fixing, we discover some new vertices and their infinite higher derivative corrections. We produce both infinite gauge and scalar $u-$channel poles of this amplitude. In particular, by setting the fact that the kinetic term of fermion fields has no correction, employing Born-Infeld action, the Wess-Zumino terms and their higher derivative corrections, we discover all the infinite $t,s-$channel fermion poles. The couplings between one RR and two fermions and all their infinite higher derivative corrections have been explored. In order to look for all the infinite $(s+t+u)-$ channel scalar/gauge poles for $p+2=n,p=n$ cases, we obtain the couplings between two fermions-two scalars and two fermions, one scalar and one gauge field as well as all their infinite higher derivative corrections. Specifically we make various comments based on arXiv:1205.5079 in favor of the universality conjecture for all order higher derivative corrections (with or without low energy expansion) and the relation of open/closed string that is responsible for all super string scattering amplitudes in IIA,IIB.

View original: http://arxiv.org/abs/1302.5024