论文标题
从渐近安全重力中调味异常
Flavor anomalies from asymptotically safe gravity
论文作者
论文摘要
我们使用渐近安全的量子重力的框架来得出标量leptoquark解决方案对$ b \ to s $和$ b \ to c $ tovel Anomelies的预测。量规和Yukawa耦合系统中的相互作用UV固定点的存在在Planck尺度上施加了一组边界条件，这允许人们确定Leptoquark Yukawa矩阵元素的低能值。结果，允许的leptoquark质量范围可以显着缩小。我们发现，$ b \ to s $异常的重力驱动的解决方案预测了一个4-7 TEV的Leptoquark，完全在未来的Handron-Hadron对撞机的范围内，带有$ \ sqrt {s}} = 100 $ tev。相反，在$ b \ to c $异常的情况下，渐近安全的重力框架预测了当前LHC边界边缘的Leptoquark质量。互补的特征出现在风味可观察物中，即B和D膜和Kaons的（半）松弛衰减。
We use the framework of asymptotically safe quantum gravity to derive predictions for scalar leptoquark solutions to the $b \to s$ and $b\to c$ flavor anomalies. The presence of an interactive UV fixed point in the system of gauge and Yukawa couplings imposes a set of boundary conditions at the Planck scale, which allows one to determine low-energy values of the leptoquark Yukawa matrix elements. As a consequence, the allowed leptoquark mass range can be significantly narrowed down. We find that a consistent gravity-driven solution to the $b\to s$ anomalies predicts a leptoquark with the mass of 4-7 TeV, entirely within the reach of a future hadron-hadron collider with $\sqrt{s}=100$ TeV. Conversely, in the case of the $b\to c$ anomalies the asymptotically safe gravity framework predicts a leptoquark mass at the edge of the current LHC bounds. Complementary signatures appear in flavor observables, namely the (semi)leptonic decays of B and D mesons and kaons.
