论文标题
重力阳性范围的现象学动机：黑暗部门物理的案例研究
Phenomenological Motivation for Gravitational Positivity Bounds: A Case Study of Dark Sector Physics
论文作者
论文摘要
散射幅度的阳性界限为低能有效的野外理论提供了必要的条件，以使紫外线完成一致。在过去的几年中，研究了它们对重力理论的扩展，目的是将其应用于Swampland计划，表明即使在引力存在的情况下，阳性界限至少也大约存在。在这种情况下，一个问题是给定散射过程允许多少负面影响。在本文中，我们通过证明它与正在进行的实验范围内的物理相关，特别是在黑暗扇区物理学的背景下，解决了这一相当技术问题的重要性。特别是，我们将深色光子场景的详细分析作为说明性示例。这激发了对重力阳性界限的进一步研究。
Positivity bounds on scattering amplitudes provide a necessary condition for a low-energy effective field theory to have a consistent ultraviolet completion. Their extension to gravity theories has been studied in the past years aiming at application to the swampland program, showing that positivity bounds hold at least approximately even in the presence of gravity. An issue in this context is how much negativity is allowed for a given scattering process. In this paper we address importance of this rather technical issue by demonstrating that it is relevant to physics within the scope of ongoing experiments, especially in the context of dark sector physics. In particular, we provide detailed analysis of dark photon scenarios as an illustrative example. This motivates further studies on gravitational positivity bounds.
