A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Multiplicity dependence of K*(892)0 and ϕ(1020) production in pp collisions at √s = 13 TeV (2020)

ALICE Collaboration. (2020). Multiplicity dependence of K*(892)0 and ϕ(1020) production in pp collisions at √s = 13 TeV. Physics Letters B, 807, Article 135501. https://doi.org/10.1016/j.physletb.2020.135501

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: ALICE Collaboration

Lehti tai sarja: Physics Letters B

ISSN: 0370-2693

eISSN: 1873-2445

Julkaisuvuosi: 2020

Volyymi: 807

Artikkelinumero: 135501

Kustantaja: Elsevier

Julkaisumaa: Alankomaat

Julkaisun kieli: englanti

DOI: https://doi.org/10.1016/j.physletb.2020.135501

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/71187

Rinnakkaistallenteen verkko-osoite (pre-print): https://arxiv.org/abs/1910.14397

Tiivistelmä

The striking similarities that have been observed between high-multiplicity proton-proton (pp) collisions and heavy-ion collisions can be explored through multiplicity-differential measurements of identified hadrons in pp collisions. With these measurements, it is possible to study mechanisms such as collective flow that determine the shapes of hadron transverse momentum (pT) spectra, to search for possible modifications of the yields of short-lived hadronic resonances due to scattering effects in an extended hadron-gas phase, and to investigate different explanations provided by phenomenological models for enhancement of strangeness production with increasing multiplicity. In this paper, these topics are addressed through measurements of the K⁎(892)0 and ϕ(1020) mesons at midrapidity in pp collisions at √s = 13 TeV as a function of the charged-particle multiplicity. The results include the pT spectra, pT-integrated yields, mean transverse momenta, and the ratios of the yields of these resonances to those of longer-lived hadrons. Comparisons with results from other collision systems and energies, as well as predictions from phenomenological models, are also discussed.

YSO-asiasanat: hiukkasfysiikka

Liittyvät organisaatiot

OKM-raportointi: Kyllä

Raportointivuosi: 2020

JUFO-taso: 2