engleski

Low-mass vector-meson production at forward rapidity in p+p collisions at sqrt(s)=200 GeV

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 collisions at sqrt(s)=200  GeV. The differential cross sections for these mesons are measured as a function of both pT and rapidity. We also report the integrated differential cross sections over 1 < pT < 7  GeV/c and 1.2 < |y| < 2.2: dσ/dy(ω +ρ→μμ)=80±6(stat)±12(syst) nb and dσ/dy(ϕ→μμ)=27±3(stat)±4(syst) nb. These results are compared with midrapidity measurements and calculations.

vector meson; forward production; dimuon; p+p; 200 GeV; PHENIX; RHIC

PHENIX Collaboration.