103 citations · 852 across the 48 of their papers we have counts for
6 papers · 1 filter
SuperYang-Mills, Chern-Simons couplings and their all order corrections in IIB superstring theory
Ehsan Hatefi
We explore the closed form of the correlation function of four spin operators (including one closed string Ramond-Ramond (RR) and two open string fermions) and one current in ten d…
Stability, Tunneling and Flux Changing de Sitter Transitions in the Large Volume String Scenario
S. de Alwis, R. K. Gupta, E. Hatefi +1
We study the non-perturbative stability of the Large Volume Scenario (LVS) of IIB string compactifications, by analysing transitions mediated by the Brown-Teitelboim (BT) brane nuc…
Selection Rules and RR Couplings on Non-BPS Branes
Ehsan Hatefi
We compute three and four point functions of the non-BPS scattering amplitudes, including a closed string Ramond-Ramond, gauge/scalar and tachyon in type IIA (IIB) superstring theo…
More On Critical Collapse of Axion-Dilaton System in Dimension Four
Luis Alvarez-Gaume, Ehsan Hatefi
We complete our previous study of critical gravitational collapse in the axion-dilaton system by analysing the hyperbolic and parabolic ansätze. As could be expected, the correspon…
All order higher derivative corrections to non-BPS branes of type IIB Super string theory
Ehsan Hatefi
By dealing with the evaluation of string theory correlators of , the complete and closed form of the amplitude of two fermion fields, one tachyon and one c…
Closed string Ramond-Ramond proposed higher derivative interactions on fermionic amplitudes in IIB
Ehsan Hatefi
The complete form of the amplitude of one closed string Ramond-Ramond (RR), two fermionic strings and one scalar field in IIB superstring theory has been computed in detail. Derivi…