https://doi.org/10.1140/epjp/s13360-025-06327-8
Regular Article
Erraticity analysis of multiparticle production in pp collisions at 
2.76, 7 & 13 TeV
1
Department of Physics, Cooch Behar Panchanan Barma University, Vivekananda Street, 736101, Cooch Behar, West Bengal, India
2
Department of Physics, Chakdaha College, 741222, Nadia, West Bengal, India
3
Sir C.V. Raman Centre for Physics and Music, Jadavpur University, 700032, Kolkata, West Bengal, India
Received:
24
January
2025
Accepted:
13
April
2025
Published online:
14
May
2025
The erraticity behavior of multiparticle production is investigated in pp collisions at 
TeV using the Monte-Carlo event generator PYTHIA 8.3. The entropy indices are determined in the framework of the erraticity approach. An increase in the entropy index has been observed, potentially arising from various internal physics mechanisms modeled in PYTHIA, such as multiple parton interactions, color reconnection and statistical fluctuations may also contribute to this effect. The increasing value of 
observed in PYTHIA-generated data suggests that the multiparticle production exhibits chaotic behavior. Furthermore, when all the measures are taken together including CERN SPS energies, they collectively give a strong indication that the QCD branching process is chaotic.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
