PIRSA:22070026

Video URL

https://pirsa.org/22070026

Higher-order Correlation Function of Large-Scale Structures and Parity-Violation Search

Hou, J. (2022). Higher-order Correlation Function of Large-Scale Structures and Parity-Violation Search . Perimeter Institute for Theoretical Physics. https://pirsa.org/22070026

Hou, Jiamin. Higher-order Correlation Function of Large-Scale Structures and Parity-Violation Search . Perimeter Institute for Theoretical Physics, Jul. 18, 2022, https://pirsa.org/22070026 

          @misc{ scivideos_PIRSA:22070026,
            doi = {10.48660/22070026},
            url = {https://pirsa.org/22070026},
            author = {Hou, Jiamin},
            keywords = {Cosmology},
            language = {en},
            title = {Higher-order Correlation Function of Large-Scale Structures and Parity-Violation Search },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2022},
            month = {jul},
            note = {PIRSA:22070026 see, \url{https://scivideos.org/pirsa/22070026}}
          }

Jiamin Hou University of Florida

Talk numberPIRSA:22070026
DOI10.48660/22070026
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

In the standard cosmological paradigm, the initial condition follows Gaussian statistics. At later times, gravitational evolution induces nonlinearities in the large-scale structure, information that was fully captured by the two-point statistics at the early times gets spread into higher-order statistics. Whilst current standard cosmological analyses have focused on two-point statistics, higher-order statistics help further to tighten constraints by breaking parameter degeneracies as well as to probe the primordial Universe. In this talk, I will present our recent progress on the N-point Correlation Function (NPCF), including an analytical Gaussian covariance formalism, a first detection of the 4-point correlation function from nonlinear structure formation. Finally, I will focus on our recent analysis of parity-odd mode using the data from Baryon Oscillation Spectroscopic Survey (BOSS) and discuss the implication of parity-search at cosmological scales with large scale structure.

Zoom Link: https://pitp.zoom.us/j/92321535422?pwd=VlF4cHpvUit4bmR0eXYyczI5Qmw4dz09