EPJ Web of Conferences 142, 01010 (2017)
https://doi.org/10.1051/epjconf/201714201010

Monte Carlo generators for hadron physics: updates on PHOKHARA and EKHARA generators^*

Institute of Physics, University of Silesia, PL-40007 Katowice, Poland.

Published online: 12 April 2017

Abstract

A short review of current upgrades of the PHOKHARA and EKHARA generators is presented together with a report on the work in progress. The upgrades are based on a newly constructed model of the χ_ci − γ* − γ* and χ_ci − J/ψ* − γ* form factors. Within this model predictions were made for the electronic widths of χ_c1 and χ_c2 and, based on the event generators results, cross sections e⁺e⁻ → χ_c1 (→ J/ψ(→ μ⁺μ⁻)γ), e⁺e⁻→ e⁺e⁻χ_c1 and e⁺e⁻→ e⁺e⁻χ_c1 (→ J/ψ(→ μ⁺μ⁻)γ).