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


Abdulameer N., Acharya U., Adare A., Aidala C., Ajitanand N., Akiba Y., ...Daha Fazla

Physical Review C, cilt.112, sa.6, ss.649181-6491813, 2025 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 112 Sayı: 6
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1103/s25h-my1f
  • Dergi Adı: Physical Review C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Chemical Abstracts Core, INSPEC
  • Sayfa Sayıları: ss.649181-6491813
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

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.