Cutting Rule for Cosmological collider Signals- A Bulk Evolution Perspective


Webinar:- Cutting Rule for Cosmological collider Signals- A Bulk Evolution Perspective

We show that the evolution of interacting massive particles in the de Sitter bulk can be understood at leading order as a series of resonant decay and production events. From this perspective, we classify the cosmological collider signals into local and nonlocal categories with drastically different physical origins. This further allows us to derive a cutting rule for efficiently extracting these cosmological collider signals in an analytical fashion. The cutting rule is a practical way for extracting cosmological collider signals in model building, and can be readily implemented as symbolic computational packages in the future.

時間:2022.01.13(四) 22:40~23:20
頻道:(網上講授)Zoom※
講者:Yuhang Zhu(香港科技大學)

※May participant write to [email protected] to request for meeting link.

【此屬轉載訊息,以主事單位發佈為準】


“Copernicus Webinar and Colloquium Series”: To promote scientific discussions during this pandemic, they are organizing an online seminar series, i.e. Copernicus Webinar Series, seeking the most outstanding speakers to introduce innovative ideas and important progress in the field of gravity and cosmology. This series is named after the famous Polish Astronomer, Nicolaus Copernicus, whose discovery eventually marked the dawn of modern science.

此活動由歐洲核子研究組織CERN主辦。