Study of hadron bundles observed in Chacaltaya two-story emulsion chamber

The existence of hadron-rich families associated with few gamma-ray emissions, named Centauro and Mini-Centauro phemonena was reported. It was investigated whether these are produced by a special type of interaction different from the ordinary pion multiple production. The experimental results are compared with calculations based on an ordinary multiple pion production model. Both hadron multiplicity distribution, obtained from the present observation and the calculation, show almost the same distribution which means that hadron bundles of such smaller multiplicities are considered to originate from successive interactions of surviving nucleons with the nature of multiple production during passage through the atmosphere