  The production of isolated photons in high multiplicity events is
investigated considering the Color Glass Condensate (CGC) formalism. The
associated cross-section for proton - proton collisions is estimated
considering three distinct solutions of the Balitsky - Kovchegov (BK) equation
and predictions for the normalized photon yield as a function of the
multiplicities of co - produced charged particles are presented. We predict the
increasing of the yield with the multiplicity, with the slope being smaller for
larger rapidities. As the isolated photon production is not affected by the
fragmentation process, a future experimental investigation of this process in
current high energy hadronic colliders is ideal to test the treatment of high
multiplicity events using the CGC formalism, previously applied only for the
production of hadronic final states.
