Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at $\sqrt{s} =$ 13 TeV - INSPIRE

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Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at $\sqrt{s} =$ 13 TeV

CMS

Collaboration

Dec 7, 2020

38 pages

Published in:

JHEP 04 (2021) 109

Published: Apr 13, 2021

e-Print:

2012.04119 [hep-ex]

DOI:

10.1007/JHEP04(2021)109 (publication)

Report number:

CMS-SMP-19-011,
CERN-EP-2020-206

Experiments:

CERN-LHC-CMS

View in:

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Abstract: (Springer)

Measurements are presented of differential cross sections for the production of Z bosons in association with at least one jet initiated by a charm quark in pp collisions at

\sqrt{s}

= 13 TeV. The data recorded by the CMS experiment at the LHC correspond to an integrated luminosity of 35.9 fb

^{−1}

. The final states contain a pair of electrons or muons that are the decay products of a Z boson, and a jet consistent with being initiated by a charm quark produced in the hard interaction. Differential cross sections as a function of the transverse momentum p

_{T}

of the Z boson and p

_{T}

of the charm jet are compared with predictions from Monte Carlo event generators. The inclusive production cross section 405.4 ± 5.6 (stat) ± 24.3 (exp) ± 3.7 (theo) pb, is measured in a fiducial region requiring both leptons to have pseudorapidity |η| < 2.4 and p

_{T}

> 10 GeV, at least one lepton with p

_{T}

> 26 GeV, and a mass of the pair in the range 71–111 GeV, while the charm jet is required to have p

_{T}

> 30 GeV and |η| < 2.4. These are the first measurements of these cross sections in proton-proton collisions at 13 TeV.[graphic not available: see fulltext]

Note:

Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-19-011 (CMS Public Pages). This version has the correct PDF

Hadron-Hadron scattering (experiments)
QCD
jet: charm
p p: scattering
p p: colliding beams
Z0: hadroproduction
jet: associated production
differential cross section: measured
transverse momentum dependence
Z0: transverse momentum

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