Measurement of the $Z/\gamma^*$ boson transverse momentum distribution in $pp$ collisions at $\sqrt{s}$ = 7 TeV with the ATLAS detector

Philip James Clark, Christos Leonidopoulos, Victoria Jane Martin, Corrinne Mills, Atlas Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

This paper describes a measurement of the Z/γ$^{*}$ boson transverse momentum spectrum using ATLAS proton-proton collision data at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the LHC. The measurement is performed in the Z/γ$^{*}$ → e$^{+}$ e$^{−}$ and Z/γ$^{*}$ → μ$^{+}$ μ$^{−}$ channels, using data corresponding to an integrated luminosity of 4.7 fb$^{−1}$. Normalized differential cross sections as a function of the Z/γ$^{*}$ boson transverse momentum are measured for transverse momenta up to 800 GeV. The measurement is performed inclusively for Z/γ$^{*}$ rapidities up to 2.4, as well as in three rapidity bins. The channel results are combined, compared to perturbative and resummed QCD calculations and used to constrain the parton shower parameters of Monte Carlo generators.
Original language English Aad:2014xaa 145 Journal of High Energy Physics 1409 https://doi.org/10.1007/JHEP09(2014)145 Published - 24 Sep 2014

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