标题： 局域弦模型中爆破模数的散射与隔离 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Yukawa耦合对爆裂模数的依赖性，来散射和隔离与可见物质部分局部或远离的爆裂场。 对于D3-膜在轨道奇异点上的可见扇区，我们计算了轨道奇异点爆破模量和物质杨-米尔斯耦合之间的圆盘关联函数 <\tau _s^{(1)} \tau _s^{(2)} ... \tau _s^{(n)} \psi \psi \phi >。 对于n = 1，我们确定了完整的量子和经典关联函数。 这个结果能够正确地分解为更低的三点函数，并且也通过了众多其他一致性检查。 对于n > 1，我们证明了对扭力算符应用图片变换的结构，在所有阶数上将远距离爆裂模量在圆盘层次上隔离出来，即\alpha '。 我们解释了这些结果如何与将软项抑制到低于引力微子质量的参数尺度相关。 通过给爆裂场赋予真空期望值，我们可以进入平滑极限，从而推导出在大体积情景中出现的平滑瑞士奶酪卡拉比-丘流形的共形场论结果。 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.