# Cosmological Collider Phenomenology: the Standard Model and Beyond

### APA

Xianyu, Z. (2019). Cosmological Collider Phenomenology: the Standard Model and Beyond. Perimeter Institute. https://pirsa.org/19050028

### MLA

Xianyu, Zhong-Zhi. Cosmological Collider Phenomenology: the Standard Model and Beyond. Perimeter Institute, May. 21, 2019, https://pirsa.org/19050028

### BibTex

@misc{ pirsa_PIRSA:19050028, doi = {10.48660/19050028}, url = {https://pirsa.org/19050028}, author = {Xianyu, Zhong-Zhi}, keywords = {Particle Physics}, language = {en}, title = {Cosmological Collider Phenomenology: the Standard Model and Beyond}, publisher = {Perimeter Institute}, year = {2019}, month = {may}, note = {PIRSA:19050028 see, \url{https://pirsa.org}} }

Zhong-Zhi Xianyu Harvard University

## Abstract

The n-point correlation functions (n>2) of primordial fluctuations, known as primordial non-Gaussianities, encode rich information about the physical degrees of freedom and their interactions at inflation scale, and can be viewed as signals from a cosmological collider with huge energy. In this talk we introduce recent theoretical attempts to extract new physics at the inflation scale from primordial non-Gaussianities, including possible discovery channels, the background signals from the standard model, and signals from new physics such as heavy neutrinos, and a possible way to turn inflation into a Higgs collider.