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A proposal for the holographic dual of QCD is given by the so-called Witten-Sakai-Sugimoto model $[1,2,3]$. The Witten background is a solution of a consistent truncation of Type IIA supergravity (where only the metric, the dilaton and $F_{(4)}$ are switched on) and it corresponds to $N_c$ D4-branes wrapped around $S^1$. Intuitively this $S^1$ gives an IR ...

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The user MannyC has given an excellent answer addressing the baryon construction. I would like to add some comments mostly to spark some discussion and for completeness. Hopefully, the comments are interesting. In the following, I will also skip many steps, but if you are interested, please feel free to ask or comment. Since we are discussing fundamental ...

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You are not getting any responses because this is a topic that is included in all courses implicitly, at all levels of courses. Searching on Google I found this specific for resonances, which of course includes two body resonances, since they are the simpler to write down mathematically: The answer of mine here , may help.

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