Measurement of differential cross sections in the kinematic angular variable ϕ* for inclusive Z boson production in pp collisions at √s=8 TeV

CMS Collaboration

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Abstract

Measurements of differential cross sections dσ/dϕ* and double-differential cross sections d2σ/dϕ*d|y| for inclusive Z boson production are presented using the dielectron and dimuon final states. The kinematic observable ϕ* correlates with the dilepton transverse momentum but has better resolution, and y is the dilepton rapidity. The analysis is based on data collected with the CMS experiment at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 fb−1. The normalised cross section (1/σ) dσ/dϕ*, within the fiducial kinematic region, is measured with a precision of better than 0.5% for ϕ* < 1. The measurements are compared to theoretical predictions and they agree, typically, within few percent.
Original languageEnglish
Article number172
Number of pages44
JournalJournal of High Energy Physics
Volume2018
Issue number3
DOIs
Publication statusPublished - 2018
Externally publishedYes

Keywords

  • Hadron-Hadron scattering (experiments)
  • Particle correlations and fluctuations
  • proton-proton scattering

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