Naslov
Multiplicity and rapidity dependence of K*(892)^0 and φ(1020) production in p–Pb collisions at √sNN = 5.02 TeV

Autori
Acharya, S. ; … ; Erhardt, Filip ; … ; Gotovac, Sven ; …. ; Jercic, Marko ; … ; Karatovic, David ; … ; Loncar, Petra ; … ; Mudnic, Eugen ; … ; Planinic, Mirko ; … ; Poljak, Nikola ; … ; Vickovic, Linda ; … ; Zurlo, N.

Kolaboracija
ALICE Collaboration

Izvornik
The European Physical Journal C (1434-6052) 83 (2023), 6; 540, 21

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
rapidity: asymmetry ; K*(892)0: production ; φ(1020): production ; p nucleus: scattering ; multiplicity: high ; rapidity: high ; charged particle: multiplicity ; rapidity dependence ; transverse momentum ; ALICE ; experimental results ; 5020 GeV-cms/nucleon

Sažetak
The transverse-momentum (𝑝T) spectra of K∗(892)0 and 𝜙(1020) measured with the ALICE detector up to 𝑝T = 16 GeV/c in the rapidity range −1.2<𝑦<0.3, in p–Pb collisions at the center-of-mass energy per nucleon– nucleon collision √sNN=5.02 TeV are presented as a function of charged particle multiplicity and rapidity. The measured 𝑝T distributions show a dependence on both multiplicity and rapidity at low 𝑝T whereas no significant dependence is observed at high 𝑝T. A rapidity dependence is observed in the 𝑝T-integrated yield (dN/dy), whereas the mean transverse momentum (⟨𝑝T⟩)shows a flat behavior as a function of rapidity. The rapidity asymmetry (𝑌asym) at low 𝑝T(< 5 GeV/c) is more significant for higher multiplicity classes. At high 𝑝T, no significant rapidity asymmetry is observed in any of the multiplicity classes. Both K∗(892)0 and 𝜙(1020) show similar 𝑌asym. The nuclear modification factor (𝑄CP) as a function of 𝑝T shows a Cronin-like enhancement at intermediate 𝑝T, which is more prominent at higher rapidities (Pb-going direction) and in higher multiplicity classes. At high 𝑝T(> 5 GeV/𝑐), the 𝑄CP values are greater than unity and no significant rapidity dependence is observed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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