Graduate Feynman diagrams strong process

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SUMMARY

The forum discussion centers on the creation of Feynman diagrams for the strong interaction process ##\pi^- + p \rightarrow \Lambda_c^+ + D^-##. Participants confirm that the initial diagram submitted is not incorrect but lacks substantial merit. A revised diagram is presented, which is noted to be of order ##\mathcal{O}(\alpha_s)##, an improvement over the previous ##\mathcal{O}(\alpha_s^2)## version. The conversation emphasizes the importance of adhering to academic standards, even in informal discussions.

PREREQUISITES
  • Understanding of Feynman diagrams
  • Knowledge of quantum chromodynamics (QCD)
  • Familiarity with strong interaction processes
  • Basic principles of particle physics
NEXT STEPS
  • Study the principles of quantum chromodynamics (QCD)
  • Learn how to construct Feynman diagrams for various particle interactions
  • Explore the significance of order in perturbation theory, particularly ##\mathcal{O}(\alpha_s)##
  • Investigate conservation laws in particle physics
USEFUL FOR

Particle physicists, students of quantum mechanics, and anyone interested in the intricacies of strong interactions and Feynman diagram construction.

Aleolomorfo
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Write the Feynman diagram for a strong scattering
Hello everybody!

I have to write the Feynman diagrams for the process ##\pi^- + p \rightarrow \Lambda_c^+ + D^-##. It is a strong process since all the quantum numbers are conserved.
I have attached my attempt, is it correct?

Thank you all in advance!
 

Attachments

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Aleolomorfo said:
I have attached my attempt, is it correct?

It is not wrong, but I would probably not give it much credit. (And since this looks like homework, I don't want to say more.)
 
Vanadium 50 said:
It is not wrong, but I would probably not give it much credit. (And since this looks like homework, I don't want to say more.)

Thank you for the reply. The attached diagram is better? The previous diagram is ##\mathcal{O}(\alpha_s^2)##, instead this one is ##\mathcal{O}(\alpha_s)##, isn't it?

PS It is not homework, I was just discussing about Feynman diagrams with a mate of mine.
 

Attachments

Sure does look better...but the rule here is for homework-like problems. Even if they are really a bar bet.
 

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