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Effective field theory in large scale structure and 3 point correlation function calculus in the Dark Energy Survey

Grant number: 16/08700-0
Support type:Scholarships in Brazil - Master
Effective date (Start): August 01, 2016
Effective date (End): April 30, 2018
Field of knowledge:Physical Sciences and Mathematics - Physics
Principal Investigator:Marcos Vinicius Borges Teixeira Lima
Grantee:Henrique Rubira
Home Institution: Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated scholarship(s):17/09951-9 - Three loops matter power spectrum calculation using effective field theory, BE.EP.MS

Abstract

In this project we will study the 3 point correlation function of the density contrast field and its Fourier transform: the bispectrum. The bispectrum importance is due to the non-gaussianities. Non-gaussianities arise in the density field evolution, but they are also associated with inflation models. The 3PCF calculus has additional information if compared to the 2PCF. For its calculus, one alternative is using the perturbation theory loop corrections. Recently, it has been used the called effective field theory (EFT). We will calculate theoretically this terms and also compare with simulated catalogues and with the Dark Energy Survey data. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
KONSTANDIN, THOMAS; PORTO, RAFAEL A.; RUBIRA, HENRIQUE. The effective field theory of large scale structure at three loops. Journal of Cosmology and Astroparticle Physics, n. 11 NOV 2019. Web of Science Citations: 0.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
RUBIRA, Henrique. Towards Precise Large Scale Structure Predictions with Effective Field Theories. 2018. Master's Dissertation - Universidade de São Paulo (USP). Instituto de Física São Paulo.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.