标题： 局域弦模型中爆破模数的散射和隔离 显示英文标题

标题： Scattering and Sequestering of Blow-Up Moduli in Local String Models

摘要： 我们研究通过CFT计算物理费米子耦合对爆裂模的依赖性，从而实现对爆裂场的散射和隔离——这些爆裂场可能与可见物质扇区局部相关或相距较远。 对于D3-膜在轨道奇异点上的可见扇区，我们计算轨道奇异点膨胀模和物质Yukawa耦合之间的磁盘关联函数 <\tau _s^{(1)} \tau _s^{(2)} ... \tau _s^{(n)} \psi \psi \phi >。 For n = 1 we determine the full quantum and classical correlator. This result has the correct factorisation onto lower 3-point functions and also passes numerous other consistency checks. For n > 1 we show that the structure of picture-changing applied to the twist operators establishes the sequestering of distant blow-up moduli at disk level to all orders in \alpha '. We explain how these results are relevant to suppressing soft terms to scales parametrically below the gravitino mass. By giving vevs to the blow-up fields we can move into the smooth limit and thereby derive CFT results for the smooth Swiss-cheese Calabi-Yaus that appear in the Large Volume Scenario. 显示英文摘要

摘要： We study the scattering and sequestering of blow-up fields - either local to or distant from a visible matter sector - through a CFT computation of the dependence of physical Yukawa couplings on the blow-up moduli. For a visible sector of D3-branes on orbifold singularities we compute the disk correlator < \tau_s^{(1)} \tau_s^{(2)} ... \tau_s^{(n)} \psi \psi \phi > between orbifold blow-up moduli and matter Yukawa couplings. For n = 1 we determine the full quantum and classical correlator. This result has the correct factorisation onto lower 3-point functions and also passes numerous other consistency checks. For n > 1 we show that the structure of picture-changing applied to the twist operators establishes the sequestering of distant blow-up moduli at disk level to all orders in \alpha'. We explain how these results are relevant to suppressing soft terms to scales parametrically below the gravitino mass. By giving vevs to the blow-up fields we can move into the smooth limit and thereby derive CFT results for the smooth Swiss-cheese Calabi-Yaus that appear in the Large Volume Scenario.