论文标题

宇宙对撞机的仪表玻色子信号

Gauge Boson Signals at the Cosmological Collider

论文作者

Wang, Lian-Tao, Xianyu, Zhong-Zhi

论文摘要

我们研究了从轴突型耦合到充气量和原始非高斯语中相应的振荡特征的膨胀期间的大量仪表玻色子的产生。在仪表玻色子质量和化学电位都大的窗口中,信号可能通过近距离大规模结构探针可能达到。这种情况涵盖了一个新区域的振荡频率,该区域并非由先前已知的宇宙撞机模型填充。我们还演示了如何正确包括指数因子并讨论在信号估计中获得量规玻色子质量的功率依赖性的微妙之处。

We study the production of massive gauge bosons during inflation from the axion-type coupling to the inflaton and the corresponding oscillatory features in the primordial non-Gaussianity. In a window in which both the gauge boson mass and the chemical potential are large, the signal is potentially reachable by near-future large scale structure probes. This scenario covers a new region in oscillation frequency which is not populated by previously known cosmological collider models. We also demonstrate how to properly include the exponential factor and discuss the subtleties in obtaining power dependence of the gauge boson mass in the signal estimate.

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