What is the Model Independent Expectation Value for QCD Vacuum?

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In summary, QCD (Quantum Chromodynamics) Vacuum is the state of space without any matter or particles present, where the strong nuclear force is the dominant force. Understanding QCD Vacuum is crucial for understanding the fundamental nature of the universe and the behavior of subatomic particles. It is studied through theoretical and experimental methods, and has a significant impact on particle physics as the underlying framework for the Standard Model. However, the complexity of mathematical equations and unanswered questions about high energy behavior pose challenges in fully understanding QCD Vacuum.
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Naeem Anwar
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How to understand QCD vacuum? What is the model independent expectation value for it? Looking for some basic literature on it.

Thanks in advance!
 
  • #3
The question is a bit vague to me, but for example a place where a discussion on the QCD vacuum can be found is:

http://arxiv.org/pdf/hep-ph/0607268.pdf

Peccei was one of the "inventors" of the Axion in order to provide a solution of the so called strong CP problem, which arises precisely due to the structure of the QCD vacuum.

I hope this helps

Sleuth
 
  • #4
you could also try Weinberg's QFT vol 2
 

FAQ: What is the Model Independent Expectation Value for QCD Vacuum?

1. What is QCD Vacuum?

QCD (Quantum Chromodynamics) Vacuum refers to the state of space in which there is no matter or particles present. In this state, the strong nuclear force, which is responsible for holding together the nucleus of an atom, is the dominant force.

2. Why is understanding QCD Vacuum important?

Understanding QCD Vacuum is important because it helps us understand the fundamental nature of the universe and how particles interact with each other. It also plays a crucial role in our understanding of the strong nuclear force and the behavior of subatomic particles.

3. How is QCD Vacuum studied?

QCD Vacuum is studied through various theoretical and experimental methods. Theoretical physicists use mathematical equations and models to study the behavior of subatomic particles in the vacuum. Experimental physicists use particle accelerators and detectors to observe and analyze the behavior of particles in the vacuum.

4. What is the significance of QCD Vacuum in particle physics?

QCD Vacuum has a significant impact on particle physics as it is the underlying framework for the Standard Model, which is the most widely accepted theory explaining the behavior of subatomic particles. It also helps us understand the behavior of particles at extremely high energies, such as those found in the early universe or in particle colliders.

5. What are the current challenges in understanding QCD Vacuum?

One of the main challenges in understanding QCD Vacuum is the complexity of the mathematical equations involved. Additionally, there are still many unanswered questions about the behavior of particles in the vacuum, especially at high energies. Further research and advancements in technology are needed to fully understand QCD Vacuum and its role in the universe.

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