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Wrapped brane gas as a candidate for dark matter

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タイトル: Wrapped brane gas as a candidate for dark matter
著者: Sano, Masakazu 著作を一覧する
Suzuki, Hisao 著作を一覧する
発行日: 2010年 1月15日
出版者: American Physical Society
誌名: Physical Review D
巻: 81
号: 2
開始ページ: 024042
出版社 DOI: 10.1103/PhysRevD.81.024042
抄録: 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
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 鈴木 久男


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