Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-SMP-21-003 | ||
| Azimuthal correlations in Z+jets events at 13 TeV | ||
| CMS Collaboration | ||
| July 2021 | ||
| Abstract: The production of Z bosons associated with jets is measured at $\sqrt{s}= $ 13 TeV with data recorded at the LHC corresponding to a luminosity of 36.3 fb$^{-1}$. The multiplicity of jets with $p_\mathrm{T}(\mathrm{Z}) > $ 30 GeV is measured for different regions of the Z transverse momentum, ranging from $p_\mathrm{T}(\mathrm{Z}) < $ 10 GeV to $p_\mathrm{T}(\mathrm{Z}) > $ 100 GeV. The azimuthal correlation $\Delta \phi$ between the Z boson and the leading jet as well as the correlation $\Delta\phi (j_1, j_2)$ between the two leading jets is measured for different $p_\mathrm{T}(\mathrm{Z})$. The measurements are compared with predictions with up to two additional partons merged at next-to-leading order supplemented with parton shower and hadronization, with predictions at NLO for up to two additional partons based on transverse momentum dependent parton distributions and the corresponding parton showers, and with resummed predictions of Z production at NNLO supplemented with conventional parton shower. Predictions based on matrix element calculations with up to two additional partons at NLO come close to the measurements. | ||
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Links:
CDS record (PDF) ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, Submitted to EPJC. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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