Nonlinear Phenomena in Complex Systems, 2021, Vol.24, No.3, pp.292

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2021, Vol.24, No.3, pp.292 - 300

Collective Behavior of Secondary Particles in the Region of high Multiplicity in pp Interactions at 50 GeV/c

Elena Kokoulina, Nurlan Barlykov, Vladimir Dudin, Alexander Gribovsky, Vladimir Dunin, Vladimir Nikitin, Vsevolod Popov, Andrey Kutov, Vasiliy Ryadovikov, and Roman Shulyakovsky

The latest results on the search for collective phenomena in proton interactions at the U-70 accelerator at IHEP (Protvino) are presented. This long-term experiment has been carried at the SVD-2 setup. Our study was aimed at a high multiplicity region where the series of collective phenomena is predicted. We have received an evidence of the formation of a pion (Bose-Einstein) condensate. We have observed two noticeable peaks in the angular distribution of charged pions interpreted as Cherenkov radiation of gluons by quarks and others phenomena.

Key words: hadronic interactions, high multiplicity events, collective phenomena, pionic (Bose- Einstein) condensate, gluon radiation, gluon dominance model, experimental study

DOI: https://doi.org/10.33581/1561-4085-2021-24-3-292-300

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