22.04.2026

E. M. Plotnikova "Study of Bose-Einstein correlations in proton-proton interactions at energies 0.9, 7 and 13 TeV in the ATLAS experiment at the Large Hadron Collider"

The report presents the results of a study of two-particle Bose-Einstein correlations in proton-proton collisions at energies 0.9, 7 and 13 TeV in the ATLAS experiment at the LHC. The Bose-Einstein correlation parameters characterizing the source radius and correlation strength are investigated depending on the multiplicity of charged particles (up to 300) and the average transverse momentum of a pair of particles (up to 1.5 GeV).

ATLAS

The effect of saturation of the dependence of the source radius parameter on the multiplicity of charged particles in the region of large multiplicity (more than 100) was discovered and confirmed on large statistics. This effect is also observed in double differential distributions by multiplicity of charged particles and by average transverse momentum of a pair of charged particles. The distribution of charged particles in proton-proton interactions at energy 13 TeV was studied in the ATLAS experiment in the kinematic region $p_T$ > 500 MeV and | η | < 2.5. The results were compared with the predictions of various Monte Carlo models.

(Based on the materials of the candidate dissertation)

Presentation

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https://disk.jinr.ru/index.php/s/idCQoDZFmpaBdC2

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https://vkvideo.ru/video-179241683_456239862