Ateliers action Dark Energy 2021

Session

Neutrinos et LSS

25 juin 2021, 14:00

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14. Potential role of non-standard neutrino physics on structure formation

Prof. Julien Lesgourgues (Aachen )

25/06/2021 14:00

13. discussion

25/06/2021 14:30

12. The cosmological imprint of massive neutrinos in dark matter simulations

Julien Bel (CPT Marseille)

25/06/2021 15:00

15. discussion

25/06/2021 15:30

25. Constraining neutrino mass using three-point mean relative velocity statistics

Joseph Kuruvilla (IAS, Universite Paris-Saclay)

25/06/2021 16:20

Présentation

Velocity field provides a new avenue to constrain cosmological information, and one of the commonly used statistics is the mean radial pairwise velocity. In this talk, we consider the three-point mean relative velocity (i.e. the mean relative velocities between pairs in a triplet), and show that it is a novel probe of neutrino mass estimation. We explore the full cosmological information...

26. Constraining the total neutrino mass with the power spectrum

Sylvain Gouyou Beauchamps (CPPM)

25/06/2021 16:50

Présentation

While neutrino oscillation experiments achieved high precision measurement on the neutrino squared mass differences, the absolute scale and hierarchy are still unknown. On the cosmology side, massive neutrino's transition from a relativistic to a non-relativistic specie leaves an imprint on the Cosmic Microwave Background (CMB) temperature power spectrum, allowing for tighter constraint on the...

16. discussion

25/06/2021 17:20