Danu, A. and Brandibur, C. and Dobrin, A. and Manea, A. and Basu, S. (2025) Investigating collective effects in small collision systems using PYTHIA8 and EPOS4 simulations. Il nuovo cimento C, 48 (1). pp. 1-5. ISSN 1826-9885
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Abstract
Measurements of azimuthal angular correlations of inclusive and identified particles from EPOS4 and PYTHIA8 event generators are used to study the unexpected collective behavior observed in small collision systems. In particular, anisotropic flow coefficients measured using two- and four-particle correlations and balance functions are reported in pp collisions at √s = 13.6 TeV. The second order Fourier coefficient of π±,K±,p+p, Λ+Λ, K0 S,andΞ−+Ξ+ obtained using the scalar product method exhibits a mass ordering at low transverse momentum when a pseudo-rapidity gap of ∣Δη∣>2 is used, being more pronounced for EPOS4. The second harmonic two-particle cumulants of inclusive charged particles decrease with charged-particle multiplicity and depend weakly on ∣Δη∣, while the second harmonic four-particle cumulants are consistent with zero. The balance functions show different responses, being influenced by the different charge production mechanisms.
| Item Type: | Article |
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| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 24 Mar 2025 15:22 |
| Last Modified: | 24 Mar 2025 15:22 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23506 |
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