论文标题
从希格斯玻色子的半衰减中测量深色光子的特性
Measuring properties of a dark photon from semi-invisible decay of the Higgs boson
论文作者
论文摘要
已经致力于通过希格斯玻色子的腐烂到光子和一个看不见的粒子来发现一个暗光子。如果在此通道中发现过量的话，以及我们是否可以确定该信号是否确实是暗光子的，则可以在LHC上测量一个深度尚未探索的受试者。在本文中，我们试图针对两个Higgs生产渠道解决其中一些问题：Gluon-Fusion和$ Z $相关。首先，提出了对无质量深色光子质量的上限以及大量深色光子质量的不确定性的前景。其次，我们研究了将该信号与希格斯腐烂到重力杆菌和中性诺腐烂到光子和另一个graveritino的中性诺的可行性。最后，研究了希格斯对黑暗光子和$ z $玻色子的衰变的补充可能性。
Considerable efforts have been dedicated to discovering a dark photon via the decay of the Higgs boson to a photon and an invisible particle. A subject that is still mostly unexplored is which properties of the dark photon could be measured at the LHC if an excess were to be found in this channel and whether we could determine if this signal is indeed that of a dark photon. In this paper, we seek to address some of these questions for two Higgs production channels: gluon-fusion and $Z$-associated. First, prospects are presented for the upper limit on the mass of a massless dark photon and for the uncertainty on the mass of a massive dark photon. Second, we study the feasibility of distinguishing this signal from that of the Higgs decaying to a gravitino and a neutralino that decays to a photon and another gravitino. Finally, the complementary possibility of observing the decay of the Higgs to a dark photon and a $Z$ boson is studied.
