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Data on inclusive dielectron production are presented for the reaction p+p at2.2 GeV measured with the High Acceptance DiElectron Spectrometer (HADES). Ourresults supplement data obtained earlier in this bombarding energy regime byDLS and HADES. The comparison with the 2.09 GeV DLS data is discussed. Thereconstructed e+e- distributions are confronted with simulated pair cocktails,revealing an excess yield at invariant masses around 0.5 GeV/c2. Inclusivecross sections of neutral pion and eta production are obtained.

Inclusive dielectron production in proton-proton collisions at 2.2 GeV beam energy