论文标题
从异国情调的希格斯玻色子腐烂的毕生边界上的电动相位过渡的灯光
Shedding light on the electroweak phase transition from exotic Higgs boson decays at the lifetime frontiers
论文作者
论文摘要
我们研究了强烈的一阶电子相变（EWPT）的场景，该场景是由轻单元标量触发的，该标量与Higgs具有微弱的相互作用。由于单线标量很轻，并且耦合较弱，因此它可以在距碰撞点的宏观距离处衰减。因此，在这种情况下，它可以视为长寿命颗粒（LLP）。我们在FASER，MAPP和CMS-TIM-TIM-TIM-TIM-TECTERTOR上进行了从外来希格斯衰减中进行LLP的搜索，以探测强烈的一阶EWPT。在某些情况下，我们表明LLP搜索可以有助于达到强一阶Ewpt的参数空间，在此搜索迅速异国情调的希格斯衰减是无效的。
We study the scenarios where a strongly first-order electroweak phase transition (EWPT) is triggered by a light singlet scalar, which has feeble interactions to the Higgs. Since the singlet scalar is light and has weak couplings, it can decay at a macroscopic distance away from the collision point. Therefore, it can be regarded as a long-lived particles (LLP) in such scenarios. We perform the searches of the LLPs from the exotic Higgs decays, at the FASER, MAPP and CMS-Timing detectors of the 14 TeV HL-LHC, to probe the strongly first-order EWPT. In certain scenarios, we show that the LLP searches can help to reach the parameter space of the strongly first-order EWPT remarkably, where the searches for promptly exotic Higgs decays are not valid.
