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Multiplicity dependence of π, K, and p production in pp collisions at √s = 13 TeV (CROSBI ID 286752)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

(ALICE Collaboration) Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... et al. Multiplicity dependence of π, K, and p production in pp collisions at √s = 13 TeV // European physical journal C : particles and fields, 80 (2020), 8; 693, 20. doi: 10.1140/epjc/s10052-020-8125-1

Podaci o odgovornosti

Acharya, S. ; ... ; Antičić, Tome ; ... ; Erhardt, Filip ; ... ; Gotovac, Sven ; ... ; Jerčić, Marko ; ... ; Lončar, Petra ; ... ; Mudnić, Eugen ; ... ; Planinić, Mirko ; ... ; Poljak, Nikola ; ... ; Simatović, Goran ; ... ; Vicković, Linda ; ... ; Zurlo, N.

ALICE Collaboration

engleski

Multiplicity dependence of π, K, and p production in pp collisions at √s = 13 TeV

This paper presents the measurements of π±, K±, p and p transverse momentum (pT) spectra as a function of charged-particle multiplicity density in proton– proton (pp) collisions at √s = 13 TeV with the ALICE detector at the LHC. Such study allows us to isolate the center- ofmass energy dependence of light-flavour particle production. The measurements reported here cover a pT range from 0.1 to 20 GeV/c and are done in the rapidity interval |y| < 0.5. The pT-differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at √s = 7 TeV, which is qualitatively described by some of the hydrodynamical and pQCD- inspired models discussed in this paper. Furthermore, the pT- integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of- mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems.

π, K, and p production ; pp collisions

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Podaci o izdanju

80 (8)

2020.

693

20

objavljeno

1434-6044

1434-6052

10.1140/epjc/s10052-020-8125-1

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Fizika

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