D Branes and Gluon-Quark Interaction.

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SUMMARY

This discussion focuses on the interaction between D branes and quarks in the context of String Theory, specifically referencing the work of Professor Susskind. The user is attempting to visualize a quark-gluon interaction using a Feynman diagram, describing how quarks, characterized by their "flavor" and "color," interact through strings connecting flavor branes and color branes. The user concludes that a gluon string can detach and reattach to facilitate these interactions, illustrating the dynamic nature of quark-gluon relationships.

PREREQUISITES
  • Understanding of String Theory concepts, particularly D branes.
  • Familiarity with Feynman diagrams and their representation of particle interactions.
  • Knowledge of quark properties, including flavor and color charge.
  • Basic grasp of gluon interactions in quantum chromodynamics (QCD).
NEXT STEPS
  • Research the role of D branes in String Theory and their implications for particle physics.
  • Study Feynman diagrams in detail, focusing on quark-gluon interactions.
  • Explore the concept of color charge in quantum chromodynamics (QCD).
  • Investigate the dynamics of string interactions and their representation in theoretical physics.
USEFUL FOR

This discussion is beneficial for theoretical physicists, students of String Theory, and anyone interested in the intricate interactions of quarks and gluons within the framework of modern physics.

nigelscott
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I have been watching Prof Susskind's lectures on String Theory. I am trying to understand a little more about D branes. I am trying to reproduce a basic quark-gluon interaction. I have the following:http://www.firstcoasttutors.com/images/pf.jpg

I think this might describe the right hand side of the Feynman diagram but am not sure. If so, is the incoming side just more or less the green and red arrows inverted. Am I even remotely close here.?
 
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Quarks have "flavor" (up, down...) as well as color. In such a model, a quark is a string connecting a flavor brane with a color brane. So you would start e.g. with a string connecting up brane with green brane, and then another connecting up brane with red brane. Then the endpoints on the up brane come into contact, creating one long string that starts on the green brane and ends on the red brane, and which is free to completely detach from the up brane. This string is the green-antired gluon. Finally, for the process to reverse, the gluon string must reattach to the up brane and split in two again.
 
OK thanks. I might try and redraw my image and repost it to make sure I understand.
 

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