Testing ${\chi }_c$ properties at BELLE II

Abstract

The model of the ${\chi }_{c_i}-{\gamma }^{\ast }-{\gamma }^{\ast }$ and ${\chi }_{c_i}-J/{\psi }^{\ast }-{\gamma }^{\ast }$ form factors developed in [1] for ${\chi }_{c_1}$ and ${\chi }_{c_2}$ is extended to ${\chi }_{c_0}$ case. The studies performed within this model have shown that at BELLE II it will be possible to study in detail ${\chi }_{c_i}-{\gamma }^{\ast }-\gamma$ form factors through measurements of the reaction $e^{+}{e}^{-}\to e^{+}{e}^{-}{\chi }_{c_i}(\to J/\psi (\to {\mu }^{+}{\mu }^{-})\gamma )$.The results were obtained using the newly updated Monte Carlo generator EKHARA.

References in corpus (6)

• Helac-Phegas: a generator for all parton level processes
• EKHARA Monte Carlo generator for e+e- to e+e-pi0 and e+e- to e+e- pi+pi- processes
• Direct X(3872) production in e+e- collisions
• The reaction e+e- --> e+e-pi+pi- and the pion form factor measurements via the radiative return method
• ${\chi }_{cJ}\to e^{+}{e}^{-}$ decays revisited
• ${\chi }_{c1}$ and ${\chi }_{c2}$ production at $e^{+}{e}^{-}$ colliders

Cited by in corpus (2)

• EKHARA 3.0: an update of the EKHARA Monte Carlo event generator
• $f_1(1285)\to e^{+}{e}^{-}$ decay and direct $f_1$ production in $e^{+}{e}^{-}$ collisions