How does dynamical mass generation works ?

AI Thread Summary
Dynamical mass generation in quantum field theory (QFT) describes how effective quark mass arises from interactions with virtual particles, particularly influenced by the strong force. The effective quark mass varies with momentum, reflecting the quark's interaction with its environment. At low energies, the strong coupling constant increases due to asymptotic freedom, allowing many virtual particles to become real, thus generating mass. Clarification on the definition of effective quark mass is sought, emphasizing its significance in understanding these interactions. The discussion highlights the complexities and nuances of mass generation in QFT.
marlon
Messages
3,779
Reaction score
11
How does dynamical mass generation works ?

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
 
Last edited by a moderator:
Physics news on Phys.org

Thread '1:1 versus 2:1 Mechanical Advantage debate'

The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
View full post »

Thread 'Free fall of person in a sled to direct horizontal motion by atmospheric resistance'

Let there be a person in a not yet optimally designed sled at h meters in height. Let this sled free fall but user can steer by tilting their body weight in the sled or by optimal sled shape design point it in some horizontal direction where it is wanted to go - in any horizontal direction but once picked fixed. How to calculate horizontal distance d achievable as function of height h. Thus what is f(h) = d. Put another way, imagine a helicopter rises to a height h, but then shuts off all...
View full post »

Thread 'Newton's first law?'

Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
View full post »

Similar threads

I How do shockwaves in a 1D linear lattice work?
Replies
8
Views
1K
How Is Mass Generated Dynamically in Quantum Field Theory?
Replies
1
Views
2K
I Experiment finds gluon mass in the proton (?)
Replies
12
Views
3K
Please, what is dynamical mass-generation ?
Replies
2
Views
2K
I Work Done/Energy Transferred in One Dimensional Collision
Replies
5
Views
2K
How does an Ion generator work in space?
Replies
2
Views
1K
B Does gravitational force act on system or its components?
Replies
5
Views
1K
How does the Random number generator works?
Replies
19
Views
5K
Problem 2 rigid rods - Greenwood - Classical Dynamics
Replies
2
Views
1K
I How does the electron keep its properties?
Replies
5
Views
1K

Hot Threads

Recent Insights

Back
Top