Jun 10 – 14, 2019
Bonn, Campus Poppelsdorf
Europe/Zurich timezone

The Discussion of P₍ states and the prediction of J/ᴪ Photo-production

Jun 11, 2019, 2:30 PM
HS 6

HS 6

Baryon resonances in experiments with hadron beams and in the e+e- collisions Parallel Session C


Jiajun Wu (University of Chinese Academy of Sciences)


We will provide the theoretical description of $P_c$ states within coupled channel model. To provide information for the search of nucleon resonances with hidden charm $P_c$ for the on-going experiments at JLab, we make predictions by including the resonant amplitude of $\gamma p \to N^*_{c\bar{c}} \to J/\psi p$ calculated from all available theoretical models. The background is mainly from Pomeron-exchange model of the $\gamma p \to J/\psi p$ reaction. The parameters of the Pomeron-exchange amplitudes are determined by fitting the total cross section data of $\gamma p \to J/\psi p$ up to very high energy W = 300 GeV. We then demonstrate that the $P_c$ can be most easily identified in the differential cross sections at large angles where the contribution of background becomes negligible.

Primary authors

Jiajun Wu (University of Chinese Academy of Sciences) Prof. T.-S. Harry Lee ( Argonne National Laboratory) Bing-Song Zou (Chinese Academy of Sciences)

Presentation materials