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hep-th2011★ 27 cited
Four-Derivative Brane Couplings from String Amplitudes
Katrin Becker, Guangyu Guo, Daniel Robbins
We evaluate the string theory disc amplitude of one Ramond-Ramond field C^(p-3) and two Neveu-Schwarz B-fields in the presence of a single Dp-brane in type II string theory. From t…
hep-th2011★ 19 cited
Disc amplitudes, picture changing and space-time actions
Katrin Becker, Guangyu Guo, Daniel Robbins
We study in detail the procedure for obtaining couplings of D-branes to closed string fields by evaluating string theory disc amplitudes. We perform a careful construction of the r…