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Fit to the LHCb double $J/\psi$ spectrum

arXiv Binder

This is a coupled-channel analysis of the LHCb data reporting the $X(6900)$ in arXiv:2006.18957. Our results are presented in arXiv:2009.07795.

We consider coupled channels of two kinds:

  • two channels: $J/\psi J/\psi$ and $J/\psi \psi(2S)$
  • three channels: $J/\psi J/\psi$, $J/\psi \psi(2S)$ and $J/\psi \psi(3770)$

The analysis can be played interactively by clicking Binder

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Code for arXiv:2009.07795, a coupled-channel analysis of the LHCb data reporting the $X(6900)$

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