Jet-triggered charged particle transverse momentum spectra in pp collisions at 7 TeV

The charged particle transverse momentum spectra are presented for $\sqrt{s}=7$~TeV $pp$ collisions collected with the CMS detectorduring the first months of the 2010 LHC run. To extend the statistical reach of the measurements, calorimeter-based high-$E_{T}$ jet triggers are employed to enhance yields at high $p_{T}$. The results are compared to both leading-order QCD and an empirical scaling of different collision energies with \mbox{$x_T\equiv2p_T/\sqrt{s}$} over the $p_T$ range up to 140 GeV/c. These measurements also provide an invaluable reference for studying high-$p_{T}$ particle suppression in the dense QCD medium produced in the collisions of heavy ions.