Two particles Dirac type equation question

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ftr
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I was reading this paper
https://arxiv.org/pdf/0805.4725.pdf

It seems that the potential between the particles can be assumed of different forms, shouldn't the potential be a solution of the problem.
Thanks
 

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PeterDonis
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shouldn't the potential be a solution of the problem.
No, it's an input to the problem. You assume a particular potential, then solve the equations to see what the possible states of the system are.
 
  • #3
ftr
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No, it's an input to the problem. You assume a particular potential, then solve the equations to see what the possible states of the system are.
Thanks for the reply.

from the introduction
"In recent years the two body Dirac equations (2BDE) in different formulations with various confining potentials are used as a relativistic constituent quark models"
From where/what these confining potentials are generated.
 

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