Moduli stabilization with positive vacuum energy
JOURNAL OF HIGH ENERGY PHYSICS(2006)
摘要
We study the effect of anomalous U(1) gauge groups in string theory compactification with fluxes. We find that, in a gauge invariant formulation, consistent AdS vacua appear breaking spontaneously supergravity. Non vanishing D-terms from the anomalous symmetry act as an uplifting potential and could allow for de Sitter vacua. However, we show that in this case the gravitino is generically (but not always) much heavier than the electroweak scale. We show that alternative uplifting scheme based on corrections to the Kahler potential can be compatible with a gravitino mass in the TeV range.
更多查看译文
关键词
dS vacua in string theory,supergravity models,supersymmetric effective theories,supersymmetry breaking
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络