A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Multiplicity and event-scale dependent flow and jet fragmentation in pp collisions at √s = 13 TeV and in p–Pb collisions at √sNN = 5.02 TeV (2024)
ALICE Collaboration. (2024). Multiplicity and event-scale dependent flow and jet fragmentation in pp collisions at √s = 13 TeV and in p–Pb collisions at √sNN = 5.02 TeV. Journal of High Energy Physics, 2024(3), Article 92. https://doi.org/10.1007/JHEP03(2024)092
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: ALICE Collaboration
Lehti tai sarja: Journal of High Energy Physics
ISSN: 1126-6708
eISSN: 1029-8479
Julkaisuvuosi: 2024
Ilmestymispäivä: 15.03.2024
Volyymi: 2024
Lehden numero: 3
Artikkelinumero: 92
Kustantaja: Springer Science and Business Media LLC
Julkaisumaa: Saksa
Julkaisun kieli: englanti
DOI: https://doi.org/10.1007/JHEP03(2024)092
Julkaisun avoin saatavuus: Avoimesti saatavilla
Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/94630
Julkaisu on rinnakkaistallennettu: https://arxiv.org/abs/2308.16591
Tiivistelmä
Long- and short-range correlations for pairs of charged particles are studied via two-particle angular correlations in pp collisions at √s=13 TeV and p−Pb collisions at √sNN=5.02 TeV. The correlation functions are measured as a function of relative azimuthal angle Δφ and pseudorapidity separation Δη for pairs of primary charged particles within the pseudorapidity interval |η|<0.9 and the transverse-momentum interval 1<4 GeV/c. Flow coefficients are extracted for the long-range correlations (1.6<|Δη|<1.8) in various high-multiplicity event classes using the low-multiplicity template fit method. The method is used to subtract the enhanced yield of away-side jet fragments in high-multiplicity events. These results show decreasing flow signals toward lower multiplicity events. Furthermore, the flow coefficients for events with hard probes, such as jets or leading particles, do not exhibit any significant changes compared to those obtained from high-multiplicity events without any specific event selection criteria. The results are compared with hydrodynamic-model calculations, and it is found that a better understanding of the initial conditions is necessary to describe the results, particularly for low-multiplicity events.
YSO-asiasanat: hiukkasfysiikka
Liittyvät organisaatiot
Hankkeet, joissa julkaisu on tehty
- The strong interaction at the frontier of knowledge: fundamental research and applications- STRONG- 2020
- Lappi, Tuomas
- Euroopan komissio
- Kvarkkiaineen tutkimuksen huippuyksikkö
- Räsänen, Sami
- Suomen Akatemia
- Kvarkkiaineen tutkimuksen huippuyksikö
- Kim, Dong
- Suomen Akatemia
OKM-raportointi: Kyllä
Raportointivuosi: 2024
Alustava JUFO-taso: 3