标题： 具有化学势的宇宙对撞机中的大统一理论 显示英文标题

标题： Grand Unification at the Cosmological Collider with Chemical Potential

摘要： 我们引入了宇宙学对撞机物理中自旋-1粒子的树级化学势机制，允许它们通过原初非高斯性在高于暴胀哈勃标度的质量上被探测到。 我们将这一机制应用于 orbifold 大统一理论以及标准模型规范玻色子的大量统一代用品。 我们的机制要求至少一对标准模型的标量矢量场，这一条件在经典的“三分统”场景中得到满足。 假设规范能级问题由超对称性解决，规范耦合运行指向约$10^{15}$GeV 的统一代用品。 我们证明，在高尺度暴胀中，化学势增强可以导致三分统伙伴在未来宇宙学调查中的可观测强信号。 显示英文摘要

摘要： We introduce a tree-level chemical potential mechanism for spin-1 particles within cosmological collider physics, allowing them to be detected in primordial non-Gaussianities for masses above the inflationary Hubble scale. We apply this mechanism to orbifold grand unification and the massive unification partners of the standard model gauge bosons. Our mechanism requires at least a pair of massive vector fields which are singlets of the standard model, a condition which is satisfied in the classic "trinification" scenario. Assuming that the gauge hierarchy problem is solved by supersymmetry, gauge coupling running points to unification partners at ~ $10^{15}$ GeV. We show that, within high-scale inflation, chemical potential enhancement can lead to observably strong signals for trinification partners in future cosmological surveys.