Resonant, non resonant neutrino oscillations and Dark Matter

In summary, right-handed neutrinos can be produced through both non-resonant and resonant neutrino oscillation, and in the case of resonant oscillation, thermal equilibrium is not necessary for their production.
  • #1
Trixie Mattel
29
0
Hello

I am aware that one method behind the production of right handed neutrinos is neutrino oscillation. Its been theorized that both non resonant and resonant neutrino oscillation can produce them

I know that with non resonant neutrino oscillation the neutrinos don't reach thermal equilibrium
Is this also true for resonant neutrino oscillation??

So really my question is, when right handed neutrinos are produced via resonant neutrino oscillations, are they still made such that they do not ever reach thermal equilibrium?
 
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  • #2
The answer is yes. Resonant neutrino oscillation does not require thermal equilibrium for the production of right-handed neutrinos. The oscillation process is driven by a resonance between two neutrinos and as such, the oscillation will continue even if there is no thermal equilibrium.
 

1. What are resonant and non-resonant neutrino oscillations?

Neutrino oscillations refer to the phenomenon where neutrinos change from one type to another as they travel through space. Resonant oscillations occur when the frequencies of the neutrinos match the natural frequency of the medium they are traveling through, leading to a more efficient conversion. Non-resonant oscillations occur when there is no matching frequency and the conversion is less efficient.

2. How do resonant and non-resonant neutrino oscillations affect our understanding of the universe?

Neutrino oscillations play a crucial role in our understanding of the universe because they provide evidence for the existence of neutrino mass, which was previously thought to be zero. Furthermore, the efficiency of oscillations can help explain the abundance of certain types of neutrinos in the universe and their role in various astrophysical processes.

3. What is Dark Matter and how is it related to neutrino oscillations?

Dark Matter is a hypothetical form of matter that does not interact with light and cannot be directly observed, yet its gravitational effects are evident in the behavior of galaxies and large-scale structures in the universe. Some theories suggest that Dark Matter may be composed of non-resonant neutrinos, which would have significant implications for our understanding of both neutrino oscillations and the composition of the universe.

4. What are the current theories surrounding the connection between neutrino oscillations and Dark Matter?

One theory suggests that non-resonant neutrino oscillations may produce sterile neutrinos, which are a type of neutrino that does not interact with other matter and is therefore difficult to detect. These sterile neutrinos could potentially be a form of Dark Matter and could explain some of the discrepancies between observations and predictions in astrophysics and cosmology.

5. What are some ongoing experiments and research efforts in the study of resonant, non-resonant neutrino oscillations and Dark Matter?

There are numerous ongoing experiments and research efforts in this field, including the IceCube Neutrino Observatory, the Super-Kamiokande experiment, and the proposed DUNE (Deep Underground Neutrino Experiment). These experiments aim to further our understanding of neutrino oscillations and their connection to Dark Matter through observations and data analysis. Additionally, theoretical studies and simulations are being conducted to investigate various models and scenarios that could explain the relationship between these phenomena.

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