The production of K∗(892)0 and φ(1020) resonances has been measured in p-Pb collisions at √sNN = 8.16 TeV using the ALICE detector. Resonances are reconstructed via their hadronic decay channels in the rapidity interval−0.5 < y < 0 and the transverse momentum spectra are measured for various multiplicity classes up to pT = 20 GeV/c for K∗(892)0 and pT = 16 GeV/c for φ(1020). The pT-integrated yields and mean transverse momenta are reported and compared with previous results in pp, p-Pb and Pb-Pb collisions. The xT scaling for K∗(892)0 and φ(1020) resonance production is newly tested in p-Pb collisions and found to hold in the high-pT region at Large Hadron Collider energies. The nuclear modification factors (RpPb) as a function of pT for K∗0 and φ at √sNN = 8.16 TeV are presented along with the new RpPb measurements of K∗0, φ, , and at √sNN = 5.02 TeV. At intermediate pT (2–8 GeV/c), RpPb of , show a Cronin-like enhancement, while K∗0 and φ show no or little nuclear modification. At high pT (>8 GeV/c), the RpPb values of all hadrons are consistent with unity within uncertainties. The RpPb of K∗(892)0 and φ(1020) at √sNN = 8.16 and 5.02 TeV show no significant energy dependence.

K*(892) and ϕ(1020) production in p-Pb collisions at √sNN = 8.16 TeV

Camerini P.;Contin G.;De Martin C.;Fragiacomo E.;Luparello G.;Margagliotti G. V.;Piano S.;Rui R.;Urioni M.;Zaccolo V.;
2023-01-01

Abstract

The production of K∗(892)0 and φ(1020) resonances has been measured in p-Pb collisions at √sNN = 8.16 TeV using the ALICE detector. Resonances are reconstructed via their hadronic decay channels in the rapidity interval−0.5 < y < 0 and the transverse momentum spectra are measured for various multiplicity classes up to pT = 20 GeV/c for K∗(892)0 and pT = 16 GeV/c for φ(1020). The pT-integrated yields and mean transverse momenta are reported and compared with previous results in pp, p-Pb and Pb-Pb collisions. The xT scaling for K∗(892)0 and φ(1020) resonance production is newly tested in p-Pb collisions and found to hold in the high-pT region at Large Hadron Collider energies. The nuclear modification factors (RpPb) as a function of pT for K∗0 and φ at √sNN = 8.16 TeV are presented along with the new RpPb measurements of K∗0, φ, , and at √sNN = 5.02 TeV. At intermediate pT (2–8 GeV/c), RpPb of , show a Cronin-like enhancement, while K∗0 and φ show no or little nuclear modification. At high pT (>8 GeV/c), the RpPb values of all hadrons are consistent with unity within uncertainties. The RpPb of K∗(892)0 and φ(1020) at √sNN = 8.16 and 5.02 TeV show no significant energy dependence.
2023
Pubblicato
File in questo prodotto:
File Dimensione Formato  
PRC_107(2023)055201_1-21.pdf

accesso aperto

Tipologia: Documento in Versione Editoriale
Licenza: Creative commons
Dimensione 1.38 MB
Formato Adobe PDF
1.38 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/3097003
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 6
  • ???jsp.display-item.citation.isi??? 5
social impact