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Low-mass vector-meson production at forward rapidity in p + p and Au + Au collisions at √sNN = 200 GeV

Abdulameer, N.J. ; Oskarsson, A. LU ; Silvermyr, D. LU orcid and Zou, L. (2025) In Physical Review C 112(6).
Abstract
The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low-mass vector-meson (ω + ρ and φ) production through the dimuon decay channel at forward rapidity (1.2 < |y| < 2.2) in p + p and Au + Au collisions at √sNN = 200 GeV. The low-mass vector-meson yield and nuclear-modification factor were measured as a function of the average number of participating nucleons, ‹Npart›, and the transverse momentum pT. These results were compared with those obtained via the kaon decay channel in a similar pT range at midrapidity. The nuclear-modification factors in both rapidity regions are consistent within the uncertainties. A comparison of the ω + ρ and J/ψ mesons reveals that the light and heavy flavors are consistently... (More)
The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low-mass vector-meson (ω + ρ and φ) production through the dimuon decay channel at forward rapidity (1.2 < |y| < 2.2) in p + p and Au + Au collisions at √sNN = 200 GeV. The low-mass vector-meson yield and nuclear-modification factor were measured as a function of the average number of participating nucleons, ‹Npart›, and the transverse momentum pT. These results were compared with those obtained via the kaon decay channel in a similar pT range at midrapidity. The nuclear-modification factors in both rapidity regions are consistent within the uncertainties. A comparison of the ω + ρ and J/ψ mesons reveals that the light and heavy flavors are consistently suppressed across both pT and ‹Npart›. In contrast, the φ meson displays a nuclear-modification factor consistent with unity, suggesting strangeness enhancement in the medium formed. © 2025 American Physical Society (Less)
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author collaboration
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publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
112
issue
6
article number
064918
publisher
American Physical Society
external identifiers
  • scopus:105027960033
ISSN
2469-9985
DOI
10.1103/s25h-my1f
language
English
LU publication?
yes
id
96b33e54-d8ec-4403-adf4-010b82d08de6
date added to LUP
2026-04-07 13:26:41
date last changed
2026-04-07 13:26:56
@article{96b33e54-d8ec-4403-adf4-010b82d08de6,
  abstract     = {{The PHENIX experiment at the Relativistic Heavy Ion Collider has measured low-mass vector-meson (ω + ρ and φ) production through the dimuon decay channel at forward rapidity (1.2 &lt; |y| &lt; 2.2) in p + p and Au + Au collisions at √sNN = 200 GeV. The low-mass vector-meson yield and nuclear-modification factor were measured as a function of the average number of participating nucleons, ‹Npart›, and the transverse momentum pT. These results were compared with those obtained via the kaon decay channel in a similar pT range at midrapidity. The nuclear-modification factors in both rapidity regions are consistent within the uncertainties. A comparison of the ω + ρ and J/ψ mesons reveals that the light and heavy flavors are consistently suppressed across both pT and ‹Npart›. In contrast, the φ meson displays a nuclear-modification factor consistent with unity, suggesting strangeness enhancement in the medium formed. © 2025 American Physical Society}},
  author       = {{Abdulameer, N.J. and Oskarsson, A. and Silvermyr, D. and Zou, L.}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Low-mass vector-meson production at forward rapidity in p + p and Au + Au collisions at √sNN = 200 GeV}},
  url          = {{http://dx.doi.org/10.1103/s25h-my1f}},
  doi          = {{10.1103/s25h-my1f}},
  volume       = {{112}},
  year         = {{2025}},
}