Superstring Scattering from O-planes

Abstract

We write the vertex operators of massless NS-NS and RR states of Type II superstring theory in the presence of Orientifold p-planes. They include the usual vertex operators of Type II theory and their images. We then calculate the two-point functions of these vertex operators at the projective plane PR_2 level. We show that the result can be written in the Veneziano-type formulae, with the same kinematic factor that appears in the D_p-branes amplitudes. While the scattering amplitudes with the usual vertex operators are not gauge invariant, the above amplitudes are invariant. From the amplitude describing scattering of two NS-NS states off the O-plane, we find the low energy effective action of O-planes. The result shows a relative factor 2^{p-6} between couplings to O-planes and to D-branes at (α')^2 order.

22 pages, no figure, latex file, v2: minor corrections, version to appear in Nucl. Phys. B

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Cited by in corpus (8)

• Duality constraints on effective actions
• Type I/heterotic duality and M-theory amplitudes
• Relations Between Closed String Amplitudes at Higher-order Tree Level and Open String Amplitudes
• O-plane couplings at order ${\alpha }^{\prime 2}$: one R-R field strength
• High-energy Massive String Scatterings from Orientifold Planes
• Surface terms in effective action of O-plane at order ${\alpha }^{\prime 2}$
• Closed superstring moduli tree-level two-point scattering amplitudes in Type IIB orientifold on $T^6/(Z_2\times Z_2)$
• Closed string disk amplitudes in the pure spinor formalism