Reminder - High Energy Physics Seminars TODAY (López Nacir)

[HECAP - Margherita Di Giovannantonio]

*_HIGH ENERGY PHYSICS SEMINARS_**__*

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*Tuesday, 16 July* 2024, at *16:00* - *Fibonacci Seminar Room (Galileo 
Guest House) **- *https://indico.ictp.it/event/10757/
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Diana Laura López Nacir (Universidad de Buenos Aires)


*“Ultralight Vector Dark Matter, Anisotropies and Cosmological Adiabatic 
Modes"*

_Abstract_
Ultralight dark matter models have recently gained interest due to its 
small scales predictions. Their small masses may let them behave as a 
collection of waves, leading to new phenomena such as a suppression in 
the mass power spectrum on small scales, the presence of characteristic 
interference patterns, the formation of soliton cores. In this talk I 
will consider an ultralight vector field dark matter (VFDM) model with 
an  homogeneous background field pointing in a given direction.
Vector fields source anisotropies in the early universe characterized by 
a shear tensor which rapidly decays once the fields start oscillating, 
making them viable dark matter candidates. I will present recent results 
on the study of the evolution of the background universe with VFDM and  
large-scale cosmological perturbations in the linear regime, such as  
the  matter power spectrums defined for wave vectors with a given direction.



To Join via Zoom:
https://zoom.us/j/98028401225

Meeting ID: 980 2840 1225

Passcode: 473129