Using the charmonium light-front wavefunctions obtained by diagonalizing an effective Hamiltonian with the one-gluon exchange interaction and a confining potential inspired by light-front holography in the basis light-front quantization formalism, we compute production of charmonium states in diffractive deep inelastic scattering and ultra-peripheral heavy ion collisions within the dipole picture. Our method allows us to predict yields of all vector charmonium states below the open flavor thresholds in high-energy deep inelastic scattering, proton-nucleus and ultra-peripheral heavy ion collisions, without introducing any new parameters in the light-front wavefunctions. The obtained charmonium cross section is in reasonable agreement with experimental data at HERA, RHIC and LHC. We observe that the cross-section ratio sigma(psi),(2s)/sigma(J/psi) reveals significant independence of model parameters.
Available at: http://works.bepress.com/kirill_tuchin/60/
This article is published as Chen, Guangyao, Yang Li, Pieter Maris, Kirill Tuchin, and James P. Vary. "Diffractive charmonium spectrum in high energy collisions in the basis light-front quantization approach." Physics Letters B 769 (2017): 477-484. DOI: 10.1016/j.physletb.2017.04.024. Posted with permission.