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Wrapped brane gas as a candidate for dark matter
| Title: | Wrapped brane gas as a candidate for dark matter |
| Authors: | Sano, Masakazu Browse this author | | Suzuki, Hisao Browse this author |
| Issue Date: | 15-Jan-2010 |
| Publisher: | American Physical Society |
| Journal Title: | Physical Review D |
| Volume: | 81 |
| Issue: | 2 |
| Start Page: | 024042 |
| Publisher DOI: | 10.1103/PhysRevD.81.024042 |
| Abstract: | We consider brane gas models based on type II string theories and analyze the mass, the Ramond-Ramond charge, and the charge on moduli fluctuations of branes wrapping over cycles of a compactified space in the four-dimensional Einstein frame. A six-dimensional torus and Calabi-Yau threefolds are considered for the Kaluza-Klein reduction. A large volume of the compactified space and a weak string coupling gives rise to point particles of the wrapped branes which have a light mass and a small charge of the Ramond-Ramond flux and of the moduli fluctuations, while the particles become very heavy in the string frame. We find that the masses and the charges satisfy the seesaw like dual relations which become time independent in the four-dimensional Einstein frame. |
| Rights: | ©2010 The American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/42807 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 鈴木 久男
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