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  4. Measurements of differential Z boson production cross sections in proton-proton collisions at $\sqrt{s}=$ 13 TeV
 
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Measurements of differential Z boson production cross sections in proton-proton collisions at $\sqrt{s}=$ 13 TeV

Sirunyan, Albert M
•
Tumasyan, Armen
•
Adam, Wolfgang
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September 9, 2019

Measurements are presented of the differential cross sections for Z bosons produced in proton-proton collisions at $\sqrt{s} =$ 13 TeV and decaying to muons and electrons. The data analyzed were collected in 2016 with the CMS detector at the LHC and correspond to an integrated luminosity of 35.9 fb$^{-1}$. The measured fiducial inclusive product of cross section and branching fraction agrees with next-to-next-to-leading order quantum chromodynamics calculations. Differential cross sections of the transverse momentum $p_\mathrm{T}$, the optimized angular variable $\phi^_\eta$, and the rapidity of lepton pairs are measured. The data are corrected for detector effects and compared to theoretical predictions using fixed order, resummed, and parton shower calculations. The uncertainties of the measured normalized cross sections are smaller than 0.5% for $\phi^\eta <$ 0.5 and for $p\mathrm{T}^\mathrm{Z} <$ 50 GeV.

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Type
report
Author(s)
Sirunyan, Albert M
Tumasyan, Armen
Adam, Wolfgang
Ambrogi, Federico
Bergauer, Thomas
Brandstetter, Johannes
Dragicevic, Marko
Erö, Janos
Escalante Del Valle, Alberto
Flechl, Martin
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Date Issued

2019-09-09

Subjects

p p: scattering

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p p: colliding beams

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Z0: hadroproduction

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Z0: leptonic decay

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differential cross section: measured

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transverse momentum dependence

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rapidity dependence

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angular dependence

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lepton: rapidity

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parton: showers

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perturbation theory: higher-order

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higher-order: 2

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quantum chromodynamics: perturbation theory

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channel cross section: branching ratio: measured

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CERN LHC Coll

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electron: pair production

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muon: pair production

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CMS

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experimental results

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13000 GeV-cms

Written at

OTHER

EPFL units
LPHE  
Available on Infoscience
February 17, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/166041
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