How Is Mass Generated Dynamically in Quantum Field Theory?

In summary, the conversation discusses the process of dynamical mass-generation in quantum field theory, which involves the generation of an effective quarkmass as a solution to the Schwinger Dysonequation. This effective quarkmass is dependent on the quark's momentum and represents the interaction between the quark and its surrounding virtual particles. The conversation also touches on the relationship between the strong force coupling constant and the generation of mass, and seeks a clear definition of the effective quarkmass.
  • #1
marlon
3,792
11
can someone help me with dynamical mass generation?

In QFT-textbooks, the process of dynamical mass-generation is often used.
For example one gets an effective quarkmass as a solution of the Schwinger
Dysonequation. This mass is dependent on the quarks momentum.



The effective quarkmass as a function of the momentum gives an image of the
interaction between a quark and its surrounding virtual particles. For
low-energy quarks, the strong force coupling constant is very large because
of asymptotic freedom. So in this condition, many virtual particles become
real because of the strong interaction and thus quarkmass is generated.



Is this conclusion right or am I making e few mistakes here?



Can anyone give me a clear definition of the effective quarkmass, what does
is really mean?

How is mass generated dynamically





Thanks a lot



Nikolaas Van der Heyden



Nikolaas.vanderheyden@ugent.be
 
Physics news on Phys.org
  • #2
@marlon did you find any more insight on this topic?
 

FAQ: How Is Mass Generated Dynamically in Quantum Field Theory?

What is dynamical mass generation?

Dynamical mass generation is a mechanism in particle physics where the mass of a particle is generated dynamically through its interaction with other particles or fields, rather than being a fundamental property of the particle itself.

How does dynamical mass generation occur?

Dynamical mass generation occurs through a process called spontaneous symmetry breaking, where a symmetry present in the underlying laws of physics is broken at a certain energy scale, resulting in the generation of mass for certain particles.

What is the significance of dynamical mass generation?

Dynamical mass generation is significant because it helps explain the origin of mass in the universe and provides a mechanism for particles to acquire mass without the need for a fundamental mass term in their equations of motion.

Can dynamical mass generation be experimentally observed?

Yes, dynamical mass generation can be observed through experiments such as high-energy particle collisions, where the effects of spontaneous symmetry breaking and mass generation can be seen in the resulting particle interactions.

Are there any real-world applications of dynamical mass generation?

While the study of dynamical mass generation is primarily theoretical in nature, it has implications for our understanding of the fundamental laws of nature and has potential applications in fields such as condensed matter physics and cosmology.

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