Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2007-12-14
Nucl.Phys.B798:89-123,2008
Physics
High Energy Physics
High Energy Physics - Theory
42 pages, 3 figures, v2: typos corrected, references added, version to appear in Nucl. Phys. B
Scientific paper
10.1016/j.nuclphysb.2008.01.030
We investigate Type II orientifolds on non-factorizable torus with and without its oribifolding. We explicitly calculate the Ramond-Ramond tadpole from string one-loop amplitudes, and confirm that the consistent number of orientifold planes is directly derived from the Lefschetz fixed point theorem. We furthermore classify orientifolds on non-factorizable Z_N x Z_M orbifolds, and construct new supersymmetric Type IIA orientifold models on them.
Kimura Tetsuji
Ohta Mitsuhisa
Takahashi Kei-Jiro
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