4 research outputs found
Surface pressure and aerodynamic loads determination of a transonic airfoil based on particle image velocimetry
Measurement of Rapidity Distribution for High Mass Drell-Yan ee Pairs at CDF
We report on the first measurement of the rapidity distribution dsigma/dy
over nearly the entire kinematic region of rapidity for e^+e^- pairs in the
Z-boson region of 66116 GeV/c^2.
The data sample consists of 108 pb^{-1} of ppbar collisions at \sqrt{s}=1.8 TeV
taken by the Collider Detector at Fermilab during 1992--1995. The total cross
section in the -boson region is measured to be 252 +- 11 pb. The measured
total cross section and d\sigma/dy are compared with quantum chromodynamics
calculations in leading and higher orders.Comment: 7 pages, 3 figures. Submitted to Physical Review Letter
The Transverse Momentum and Total Cross Section of E+ E- Pairs in the Z-Boson Region from P Anti-P Collisions at s**(1/2) = 1.8-Tev
The transverse momentum and total cross section of e^+e^- pairs in the
Z-boson region of 66<M_{ee}<116 GeV from collisions at
TeV are measured using 110 pb^{-1} of collisions taken by the
Collider Detector at Fermilab during 1992-1995. The total cross section is
measured to be pb. The differential transverse momentum cross
section is compared with calculations that match quantum chromodynamics
perturbation theory at high transverse momentum with the gluon resummation
formalism at low transverse momentum.Comment: Accepted for Publication in Phys. Rev. Letters, 7 page