A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Measurement of ϕ-meson production in Cu+Au collisions at √sNN = 200 GeV and U+U collisions at √sNN = 193 GeV (2023)
PHENIX Collaboration. (2023). Measurement of ϕ-meson production in Cu+Au collisions at √sNN = 200 GeV and U+U collisions at √sNN = 193 GeV. Physical Review C, 107(1), Article 014907. https://doi.org/10.1103/PhysRevC.107.014907
JYU-tekijät tai -toimittajat
Julkaisun tiedot
Julkaisun kaikki tekijät tai toimittajat: PHENIX Collaboration
Lehti tai sarja: Physical Review C
ISSN: 2469-9985
eISSN: 2469-9993
Julkaisuvuosi: 2023
Ilmestymispäivä: 13.01.2023
Volyymi: 107
Lehden numero: 1
Artikkelinumero: 014907
Kustantaja: American Physical Society (APS)
Julkaisumaa: Yhdysvallat (USA)
Julkaisun kieli: englanti
DOI: https://doi.org/10.1103/PhysRevC.107.014907
Julkaisun avoin saatavuus: Ei avoin
Julkaisukanavan avoin saatavuus:
Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/85701
Tiivistelmä
The PHENIX experiment reports systematic measurements at the Relativistic Heavy Ion Collider of ϕ-meson production in asymmetric Cu+Au collisions at √sNN=200GeV and in U+U collisions at √sNN=193GeV. Measurements were performed via the ϕ→K+K− decay channel at midrapidity |η|<0.35. Features of ϕ-meson production measured in Cu+Cu, Cu+Au, Au+Au, and U+U collisions were found to not depend on the collision geometry, which was expected because the yields are averaged over the azimuthal angle and follow the expected scaling with nuclear-overlap size. The elliptic flow of the ϕ meson in Cu+Au, Au+Au, and U+U collisions scales with second-order-participant eccentricity and the length scale of the nuclear-overlap region (estimated with the number of participating nucleons). At moderate pT, ϕ-meson production measured in Cu+Au and U+U collisions is consistent with coalescence-model predictions, whereas at high pT the production is in agreement with expectations for in-medium energy loss of parent partons prior to their fragmentation. The elliptic flow for ϕ mesons measured in Cu+Au and U+U collisions is well described by a (2+1)-dimensional viscous-hydrodynamic model with specific-shear viscosity η/s=1/4π.
YSO-asiasanat: hiukkasfysiikka; ydinfysiikka
Liittyvät organisaatiot
OKM-raportointi: Kyllä
VIRTA-lähetysvuosi: 2023
JUFO-taso: 2
