Joint Physics Analysis Center projects website

JPAC acknowledges support from the U.S. DOE, the U.S. NSF, CONACYT, and PAPIIT-DGAPA


  1. High energy model for tensor meson photoproduction: $\gamma p \to T p$ page
  2. High energy model for $\gamma p \to \eta \pi^0 p$ and di-meson moments: $\gamma p \to \eta\pi^0 p$ page
  3. High energy model for $\gamma N \to \pi N$ constrained by FESR: $\gamma N \to \pi N$ page
  4. High energy model for $\rho^0, \omega,\phi$ spin density matrix elements: $\gamma p \to V p$ page
  5. High energy model for $\eta'$ beam asymmetry photoproduction: $\gamma p \to \eta^{(')} p$ page
  6. High energy model for $\eta$ photoproduction: $\gamma p \to \eta p$ page
  7. High energy model for $\pi^0$ photoproduction: $\gamma p \to \pi^0 p$ page
  8. Model for $J/\psi$ photoproduction $\gamma p \to J/\psi p$: unpolarized observables ; polarized observables
  1. Pion-nucleon Scattering:
  2. Kaon-nucleon scattering: $\bar K N\to \bar K N$ page

Three-body Decay:
  1. Isobar decomposition and recoupling coefficients.
Light Meson Decay:
  1. $\eta$ meson into three pions: $\eta\to 3 \pi$ page
  2. vector meson into three pions: $\omega,\phi \to 3\pi$ page
Heavy Baryon Decay:
  1. $\Lambda_b^0 \to J/\psi p K^- $ and the $P_c(4312)^+$: $P_c(4312)^+$ page

About JPAC

The Joint Physics Analysis Center (JPAC) was set up in October 2013 between Indiana University (IU) and the Thomas Jefferson National Accelerator Facility (JLab). JPAC collaboration website

Group Pictures

2017 Summer School in Reaction Theory, Bloomington (IN)

2017 HADRON conference, Salamanca (Spain)

2017 Workshop on Future Directions in Spectroscopy Analysis, Mexico city

2018 JLab Director's day, JLab