Note on Bose-Einstein correlations of three pions in symmetric heavy-ion interactions at 650 a MeV

In a recent article published in this journal it is stated that a specific three-pion effect is found in an experiment studying Au+Au collisions. The aim of this note is to show that these new data are compatible with two-pion effects leaving no room for a specific three-pion effect. This is in accordance with three-pion interferometry results from pp and e⁺ e^? collisions at a high energy.