103 citations · 852 across the 48 of their papers we have counts for
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On RR Couplings and Bulk Singularity Structures of Non-BPS Branes
Ehsan Hatefi
We compute the five point world sheet scattering amplitude of a symmetric closed string Ramond-Ramond , a transverse scalar field, a world volume gauge field and a real tachyon in…
On New Bulk Singularity Structures, RR Couplings in Asymmetric Picture and Their All Order Corrections
Ehsan Hatefi
We have analyzed in detail four and five point functions of the string theory amplitudes, including a closed string Ramond-Ramond (RR) in an asymmetric picture and either two or th…
On RR Couplings, Singularity Structures and all order contact interactions to BPS String Amplitudes
Ehsan Hatefi
We evaluate five point world-sheet string theory amplitudes of one transverse scalar field, two world volume gauge fields ( and two transverse scalars, a gauge field) in the presen…
Remarks on the mixed Ramond -Ramond, open string scattering amplitudes of BPS, non-BPS and brane-anti brane
Ehsan Hatefi
From the world-sheet point of view we compute three, four and five point BPS and non-BPS scattering amplitudes of type IIA and IIB superstring theory. All these the mixed S-matrix…