| 日時: |
2008-11-04 11:00 - 12:00 |
| 場所: |
研究本館２階220室 |
| 会議名: |
Flavor structure with multi moduli in 5D supergravity. |
| 連絡先: |
津田 |
| 講演者: |
Dr. Yutaka Sakamura (RIKEN) |
| 講演言語: |
英語 |
| アブストラクト: |
We study 5-dimensional supergravity on S^1/Z_2 with a physical Z_2-odd vector multiplet, which yields an additional modulus other than the radion. We derive 4-dimensional effective theory and find additional terms in the Kahler potential that are peculiar to the multi moduli case. Such terms can avoid tachyonic soft scalar masses at tree-level, which are problematic in the single modulus case. We also show that the flavor structure of the soft terms are different from that in the single modulus case when hierarchical Yukawa couplings are generated by wavefunction localization in the fifth dimension. We present a concrete model that stabilizes the moduli at a supersymmetry breaking Minkowski minimum, and show the low energy sparticle spectrum.
Reference: H. Abe and Y. Sakamura, ``Flavor structure with multi moduli in 5D supergravity,'' arXiv:0807.3725 [hep-th].
|
|
