Bishara Fady, Haisch Ulrich, Monni Pier Francesco, Re Emanuele
Rudolf Peierls Centre for Theoretical Physics, University of Oxford, OX1 3NP Oxford, United Kingdom.
CERN, Theoretical Physics Department, CH-1211 Geneva 23, Switzerland.
Phys Rev Lett. 2017 Mar 24;118(12):121801. doi: 10.1103/PhysRevLett.118.121801. Epub 2017 Mar 20.
We propose a novel strategy to constrain the bottom and charm Yukawa couplings by exploiting Large Hadron Collider (LHC) measurements of transverse momentum distributions in Higgs production. Our method does not rely on the reconstruction of exclusive final states or heavy-flavor tagging. Compared to other proposals, it leads to an enhanced sensitivity to the Yukawa couplings due to distortions of the differential Higgs spectra from emissions which either probe quark loops or are associated with quark-initiated production. We derive constraints using data from LHC run I, and we explore the prospects of our method at future LHC runs. Finally, we comment on the possibility of bounding the strange Yukawa coupling.
我们提出了一种新策略，通过利用大型强子对撞机（LHC）对希格斯玻色子产生过程中横向动量分布的测量来限制底夸克和粲夸克的汤川耦合。我们的方法不依赖于重建特定的末态或重味标记。与其他提议相比，由于来自探测夸克圈或与夸克引发的产生相关的发射导致的微分希格斯玻色子谱的畸变，它对汤川耦合具有更高的灵敏度。我们使用LHC第一阶段运行的数据得出限制，并探索我们的方法在未来LHC运行中的前景。最后，我们评论了限制奇异夸克汤川耦合的可能性。
