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arXiv · 1307.3520

Selection Rules and RR Couplings on Non-BPS Branes

Ehsan Hatefi
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Abstract

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 theories. We then discover a unique expansion for tachyon amplitudes in both non-BPS and D-brane anti D-brane formalisms. Based on remarks on Chan-Paton factors and arXiv:1304.3711, we propose selection rules for all non-BPS scattering amplitudes of type II superstring theory. These selection rules, rule out various non-BPS higher point correlation functions of the string theory.

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Ehsan Hatefi. 2013-11-10. Selection Rules and RR Couplings on Non-BPS Branes. https://doi.org/10.1007/jhep11(2013)204

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