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| CMS-PAS-SMP-16-006 | ||
| Measurement of the $\mathrm{W}^{+}\mathrm{W}^{-}$ cross section in pp collisions at $\sqrt{s} = $ 13 TeV | ||
| CMS Collaboration | ||
| June 2016 | ||
| Abstract: A measurement of the $\mathrm{W}^{+}\mathrm{W}^{-}$ cross section in pp collisions at 13 TeV is presented. The data were collected with the CMS detector at the LHC in 2015, and correspond to an integrated luminosity of 2.3 $\pm$ 0.1 fb$^{-1}$. The measurement is performed by selecting events with one electron and one muon of opposite charge, accompanied by large missing transverse energy. The $\mathrm{W}^{+}\mathrm{W}^{-}$ cross section is measured to be 115.3 $\pm$ 5.8 (stat) $\pm$ 5.7 (exp) $\pm$ 6.4 (theo) $\pm$ 3.6 (lumi) pb, consistent with the standard model prediction. | ||
| Links: CDS record (PDF) ; inSPIRE record ; CADI line (restricted) ; | ||
| Figures | |
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Figure 1-a:
Comparison between data and MC distributions for the leading lepton $ {p_{\mathrm {T}}} $ $(p_{\mathrm {T}}^{\mathrm {1stlep}})$ and for the missing transverse energy $ { {E_\mathrm {T}}^{\mathrm {miss}}}$ in the 0-jet category. The hatched areas represent the systematic uncertainty in each bin. The last bin includes the overflow. |
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Figure 1-b:
Comparison between data and MC distributions for the leading lepton $ {p_{\mathrm {T}}} $ $(p_{\mathrm {T}}^{\mathrm {1stlep}})$ and for the missing transverse energy $ { {E_\mathrm {T}}^{\mathrm {miss}}}$ in the 0-jet category. The hatched areas represent the systematic uncertainty in each bin. The last bin includes the overflow. |
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Figure 2-a:
Comparison between data and MC distributions for the leading lepton $ {p_{\mathrm {T}}} $ $(p_{\mathrm {T}}^{\mathrm {1stlep}})$ and for the missing transverse energy $ { {E_\mathrm {T}}^{\mathrm {miss}}}$ in the 1-jet category. The hatched areas represent the systematic uncertainty in each bin. The last bin includes the overflow. |
png pdf |
Figure 2-b:
Comparison between data and MC distributions for the leading lepton $ {p_{\mathrm {T}}} $ $(p_{\mathrm {T}}^{\mathrm {1stlep}})$ and for the missing transverse energy $ { {E_\mathrm {T}}^{\mathrm {miss}}}$ in the 1-jet category. The hatched areas represent the systematic uncertainty in each bin. The last bin includes the overflow. |
| Tables | |
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Table 1:
Summary of the event selection for the $\mathrm{ W }^+ \mathrm{ W }^- $ cross section measurement. |
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Table 2:
Propagation of the uncertainties described in this section to the $ { {\mathrm {W}}^+ {\mathrm {W}}^-}$ cross section measurement, in units of percent. The uncertainties are presented for the combination of the 0-jet and 1-jet categories. |
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Table 3:
Data, signal and background yields for all the $\mathrm{ W }^+ \mathrm{ W }^- $ selection channels. Both statistical and systematical uncertainties are reported. |
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Table 4:
Cross section measurements (in pb) for the independent categories and the combined result. The uncertainty is reported separately for the sources related to the limited size of the data sample, the limited knowledge of the experimental and theoretical description of the efficiency, and for the integrated luminosity. |
| Summary |
| A measurement of ${\mathrm{W^+W^-}}$ production in pp collisions at $\sqrt{s} = $ 13 TeV is presented. The data were collected with the CMS detector at the LHC, and correspond to an integrated luminosity of 2.3 $\pm$ 0.1 fb$^{-1}$. The measured value is 115.3 $\pm$ 10.9 pb, consistent with the SM prediction. |
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