Glueballs as rotating folded closed strings

@article{Sonnenschein2015GlueballsAR,
  title={Glueballs as rotating folded closed strings},
  author={Jacob Sonnenschein and Dorin Weissman},
  journal={Journal of High Energy Physics},
  year={2015},
  volume={2015},
  pages={1-43}
}
A bstractIn previous papers [1, 2] we argued that mesons and baryons can be described as rotating open strings in holographic backgrounds. Now we turn to closed strings, which should be the duals of glueballs. We look at the rotating folded closed string in both flat and curved backgrounds.A basic prediction of the closed string model is that the slope of Regge trajectories is half that of open strings. We propose that a simple method to identify glueballs is to look for resonances that belong… 
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