Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-SMP-14-019 | ||
| Measurement of the production cross section for $\mathrm{Z} \gamma \to \nu \bar{\nu} \gamma $ in pp collisions at $\sqrt{s} =$ 8 TeV and limits on $\mathrm{Z Z} \gamma$ and $\mathrm{Z} \gamma \gamma$ triple gauge boson couplings | ||
| CMS Collaboration | ||
| July 2015 | ||
| Abstract: A measurement of the $\mathrm{ Z } \gamma \rightarrow \nu \bar{\nu} \gamma$ cross section in pp collisions at $\sqrt{s} =$ 8 TeV is presented, using data corresponding to an integrated luminosity of 19.6 fb$^{-1}$ collected with the CMS detector at the LHC. This measurement is based on the observation of events with missing transverse momentum above 140 GeV and a single photon with transverse momentum above 145 GeV and absolute pseudorapidity range $|\eta| < 1.44$. The measured $\mathrm{ Z } \gamma \rightarrow \nu \bar{\nu} \gamma$ production cross section, 52.7 $\pm$ 2.1 (stat.) $\pm$ 6.4 (syst.) $\pm$ 1.4 (lumi.) fb, agrees well with the standard model prediction of 50.0$^{+2.4}_{-2.2}$ fb. The results yield the most stringent limits to date on the anomalous $\mathrm{ZZ} \gamma$ and $\mathrm{Z}\gamma\gamma$ trilinear gauge boson couplings. | ||
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Links:
CDS record (PDF) ;
inSPIRE record ;
Public twiki page ;
CADI line (restricted) ;
These preliminary results are superseded in this paper, PLB 760 (2016) 448. The superseded preliminary plots can be found here. |
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Compact Muon Solenoid LHC, CERN |
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