Can the universe become stable with a new electroweak vacuum

In summary, the conversation discussed the relationship between the top and Higgs mass determination and the concept of electroweak vacuum metastability. It was found that the available data places the universe in the meta-stable region, which is confirmed by up to 3-loop renormalization group and shows convergence. The discussion also touched on the fact that changing the electroweak vacuum can impact the top and higgs masses, but it is unclear how the stability and meta-stability boundaries would be affected in this situation. The possibility of the universe becoming stable through the emergence of new high energy physics was also mentioned, but more data is needed to determine the Higgs potential. The article and additional sources were referenced for further reading.
  • #1
Shahrokh
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The top and Higgs mass determination arose the old discussion about electroweak vacuum metastablity. There is an interesting fact that with available data the universe places in the edge of stable and meta-stable zone tends to be inside the meta-stable region. This conclusion confirms up to 3-loop renormalization group and even shows convergence. I know that changing the electroweak vacuum propertionally changes the top and higgs masses. But what I can't realize is that how the stability and meta-stability boundaries movem in this situation. So to speak, can the universe become stable by new high energy physics emergence as just <h>=246 Gev replacement?
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1. Can the universe become stable with a new electroweak vacuum?

According to current scientific understanding, yes, the universe can become stable with a new electroweak vacuum. This refers to the concept of vacuum stability in particle physics, which states that the universe can transition to a lower energy state through a process known as vacuum decay. This would result in a new electroweak vacuum and potentially change the fundamental laws of physics.

2. What is an electroweak vacuum?

An electroweak vacuum is a hypothetical state of the universe where the electroweak force is broken, meaning that the electromagnetic and weak nuclear forces are no longer unified. This is believed to have occurred shortly after the Big Bang and is responsible for the current state of the universe.

3. How does vacuum decay occur?

Vacuum decay occurs when the universe transitions to a lower energy state. This can happen through the creation of a bubble of lower energy vacuum within the existing vacuum, or through a phase transition where the entire universe undergoes a change in its fundamental laws of physics.

4. What would happen if the universe transitioned to a new electroweak vacuum?

If the universe were to transition to a new electroweak vacuum, it would have significant implications for the laws of physics and the structure of the universe. It could potentially lead to the creation of new particles, changes in the strength of forces, and alterations in the overall stability and structure of the universe.

5. Is there evidence for a new electroweak vacuum?

Currently, there is no definitive evidence for a new electroweak vacuum. However, some theories in particle physics, such as supersymmetry, suggest the possibility of multiple vacuums and the potential for vacuum decay in the future. Further research and experiments are needed to determine the validity of these theories and the potential existence of a new electroweak vacuum.

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