engleski

Measurement of ϕ-meson production at forward rapidity in p+p collisions at √s = 510 GeV and its energy dependence from √s = 200 GeV to 7 TeV

The PHENIX experiment at the Relativistic Heavy Ion Collider has measured the differential cross section of ϕ(1020)-meson production at forward rapidity in p+p collisions at √s=510 GeV via the dimuon decay channel. The partial cross section in the rapidity and pT ranges 1.2<|y|<2.2 and 2<pT<7 GeV/c is σϕ= [2.28±0.09(stat)±0.14( syst)±0.27(norm)]×10−2 mb. The energy dependence of σϕ (1.2<|y|<2.2, 2<pT<5 GeV/c) is studied using the PHENIX measurements at √s=200 and 510 GeV and the Large Hadron Collider measurements at √s=2.76 and 7 TeV. The experimental results are compared to various event generator predictions (pythia6, pythia8, phojet, ampt, epos3, and epos-lhc).

ϕ-meson production

nije evidentirano