Precision resonance energy scans with the PANDA experiment at FAIR -- Sensitivity study for width and line-shape measurements of the X(3872)
K. Götzen, R. Kliemt, F. Nerling, K. Peters, PANDA Collaboration
PA-JOU-2018-015.pdf
(2.37 MB)
M. Fritsch, J. Messchendorp
This paper summarises a comprehensive Monte Carlo simulation study for precision resonance energy scan measurements. Apart from the proof of principle for natural width and line-shape measurements of very narrow resonances with PANDA, the achievable sensitivities are quantified for the concrete example of the charmonium-like $X(3872)$ state discussed to be exotic, and for a larger parameter space of various assumed signal cross-sections, input widths and luminosity combinations. PANDA is the only experiment that will be able to perform a precision resonance energy scan of such a narrow state with quantum numbers of spin and parities that differs from $J^{PC} = 1^{--}$.