论文标题
带有$γγ$ colleders的Higgs门户的光线
Shining light through the Higgs portal with $γγ$ colliders
论文作者
论文摘要
高能量$γγ$ colliders构成了未来$ e^+ e^ - $ colliders（例如ILC和CLIC）的潜在运行模式。我们研究了高能量$γγ$对撞机对Higgs门户场景对隐形Higgs衰减阈值上方的隐藏扇区的敏感性。我们表明，这种$γγ$碰撞可以比其他计划的对撞机设施相对精确地探究黑暗部门的存在，从可观的横截面与干净的最终状态和对撞机环境的独特组合来看。此外，此搜索可以涵盖Singlet Higgs Portal参数空间，从而产生早期宇宙中的一阶电子相变。
High-energy $γγ$ colliders constitute a potential running mode of future $e^+ e^-$ colliders such as the ILC and CLIC. We study the sensitivity of a high-energy $γγ$ collider to the Higgs portal scenario to a hidden sector above the invisible Higgs decay threshold. We show that such $γγ$ collisions could allow to probe the existence of dark sectors through the Higgs portal comparatively more precisely than any other planned collider facility, from the unique combination of sizable cross-section with clean final state and collider environment. In addition, this search could cover the singlet Higgs portal parameter space yielding a first-order electroweak phase transition in the early Universe.
