QCD Meson Potential: Physics Community Agreement?

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In summary, there is still no consensus in the physics community on the form of an approximate potential function for the strong force in a meson. Some possibilities have been proposed, such as the Cornell potential which includes a term for the strong interaction and a linear term, and sometimes a logarithmic term, for confinement. However, there is currently no concrete evidence or agreement on which form is most accurate. Lattice simulations have been used, but they are not universally accepted as convincing.
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BigD
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Has the physics community come to an agreement on the form an approximate potential function would take for the strong force in a meson?

I am just starting out as a physics major, but I have been reading a few books on basic quantum theory and QFT. I am currently reading a book on particle physics that was written in the 80's, and it talks about several forms that the potential could take in a meson such as a charm-anticharm. I would greatly appreciate it if anyone could provide some up to date information on this subject.
 
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The so called "Cornell potential" has been used. It looks like
V=-g^2/r + ar. Sometmes a ln(r) is used instead of ar.
 
  • #3
Thank you.

Have experimentalists been unable to determine which of the two fits better as of yet?
 
  • #4
Nobody has been able to show on paper that confinement does exist. It is all speculation at this point that the potential function is given by the Cornell potential or something similar to it. Well, you have lattice simulations but they are not very convincing, at least to me.
 

Related to QCD Meson Potential: Physics Community Agreement?

1. What is QCD Meson Potential?

QCD Meson Potential refers to the potential energy between quarks and anti-quarks, which are the building blocks of mesons. This potential is derived from Quantum Chromodynamics (QCD), which is the theory that describes the strong nuclear force.

2. Why is the Physics community interested in QCD Meson Potential?

The Physics community is interested in QCD Meson Potential because understanding the potential energy between quarks and anti-quarks is crucial for understanding the behavior and properties of mesons. This is important for research in particle physics and for developing a more comprehensive understanding of the fundamental forces that govern the universe.

3. How is QCD Meson Potential calculated?

QCD Meson Potential is calculated using theoretical methods such as lattice QCD, which involves simulating the interactions between quarks and gluons on a discrete grid. This allows for the calculation of the potential energy between quarks and anti-quarks at different distances.

4. What is the current state of agreement within the Physics community regarding QCD Meson Potential?

Currently, there is a strong agreement within the Physics community on the basic principles and calculations of QCD Meson Potential. However, there are still ongoing debates and research on more complex aspects, such as the effects of different quark masses and the inclusion of higher-order calculations.

5. How does QCD Meson Potential contribute to our understanding of the strong nuclear force?

QCD Meson Potential provides insight into the behavior of the strong nuclear force, which is responsible for binding quarks together to form particles such as protons and neutrons. By understanding the potential energy between quarks, we can better understand the mechanisms of the strong nuclear force and how it influences the behavior of matter at a fundamental level.

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