Orateur
M.
Xingguo Li
(University of Manchester)
Description
We present a measurement of the distribution of the variable \phi_{\eta}* for muon pairs with masses between 30 and 500 GeV, using the complete Run II data set collected by the D0 detector at the Fermilab Tevatron proton-antiproton collider. This corresponds to an integrated luminosity of 10.4 fb^{−1} at \sqrt{s}= 1.96 TeV. The data are corrected for detector effects and presented in bins of dimuon rapidity and mass. The variable \phi_{\eta}* probes the same physical effects as the Z/γ∗ boson transverse momentum, but is less susceptible to the effects of experimental resolution and efficiency. These are the first measurements at any collider of the \phi_{\eta}* distributions for dilepton masses away from the Z/γ∗ \rightarrow l^{+}l^{-} boson mass peak. The data are compared to QCD predictions based on the resummation of multiple soft gluons.
Auteur principal
M.
Xingguo Li
(University of Manchester)
