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arXiv · 2110.06824

Fixed particle number constraint in a simple model of a thermal expanding system and $pp$ collisions at the LHC

M. D. Adzhymambetov·S. V. Akkelin·Yu. M. Sinyukov
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Abstract

Two-boson momentum correlations at fixed particle number constraint are studied in a simple analytically solvable model of a thermal expanding system. We show that the increase of expansion rate, as well as increase of particle multiplicity, enhances the ground-state contribution to particle momentum spectra and leads to suppression of the Bose-Einstein momentum correlations. The relations of these findings to the multiplicity-dependent measurements of the Bose-Einstein momentum correlations in high-multiplicity $p+p$ collision events at the LHC are discussed.

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M. D. Adzhymambetov, S. V. Akkelin, Yu. M. Sinyukov. 2021-10-13. Fixed particle number constraint in a simple model of a thermal expanding system and $pp$ collisions at the LHC. https://doi.org/10.1103/physrevd.105.096035

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