Thermal photons from πρ πγ revisited
Jan-e Alam, Pradip Roy, Sourav Sarkar
Abstract
We evaluate the photon spectra from the reaction πρ πγ for the exchange of π, ρ, ω, ϕ and a1 as intermediary mesons. It is found that the contributions from the intermediary a1 is more than any other meson exchange processes up to photon energies 2.5 GeV.
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