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Volume 297 - XXV International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2017) - WG5 Physics with Heavy Flavours
Production of the hidden charm state $X(3872)$ and of $\psi(2S)$ with the ATLAS detector
J. Broughton* on behalf of the ATLAS collaboration
*corresponding author
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Pre-published on: 2017 September 12
Published on: 2018 January 16
Differential cross sections are presented for the prompt and non-prompt production of the hidden-charm state $X(3872)$ and $\psi(2S)$, in the decay mode $J/\psi\pi^+\pi^-$, measured at $\sqrt{s} = 8$ TeV by the ATLAS detector at LHC. In the non-prompt production, the data suggest the presence of a short-lived component, which may be due to $B_c$ decays. The dipion invariant masses in both $X(3872)$ and $\psi(2S)$ are measured and compared to theoretical predictions.
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