Gravitational couplings of orientifold planes

Details Gravitational couplings of orientifold planes Gravitational couplings of orientifold planes

2001-12-09

arxiv.org/abs/hep-th/0112065v2

JHEP 0201 (2002) 033

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, 1 figure, 2 tables. 3 references added

Scientific paper

10.1088/1126-6708/2002/01/033

We reanalyse the gravitational couplings of the perturbative orientifold planes $Op^-$, $Op^+$ (and D-branes). We first compute their $D_{-1}$ instantonic corrections for $p=3$. Then, by using U-dualities, we obtain the Wess-Zumino terms of orientifolds with RR flux for $p \leq 5$. The expressions for the effective actions can be partially checked via M-theory. We point out a previous oversimplification and we show in fact that the difficulty still stands in the way of the full computation of 7 Brane instanton corrections.

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