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| CMS-EWK-10-013 ; CERN-PH-EP-2011-035 | ||
| Measurement of the Inclusive Z Cross Section via Decays to Tau Pairs in pp Collisions at $\sqrt{s}$ = 7 TeV | ||
| CMS Collaboration | ||
| 11 April 2011 | ||
| J. High Energy Phys. 08 (2011) 117 | ||
| Abstract: A measurement of inclusive Z to $\tau^+ \tau^-$ production in pp collisions is presented, in the final states $\mu$+hadrons, e+hadrons, e+$\mu$, and $\mu$+$\mu$. The data sample corresponds to an integrated luminosity of 36 inverse picobarns collected with the CMS detector at the LHC. The measured cross section is $\sigma(pp \to \mathrm{Z}) \mathcal{B} (\mathrm{Z} \to \tau^+ \tau^-) $ = 1.00 $\pm$ 0.05 (stat.) $\pm$ 0.08 (syst.) $\pm$ 0.04 (lumi.) nb, which is in good agreement with the next-to-next-to-leading order QCD prediction and with previous measurements in the $\mathrm{Z} \to e^+e^-$ and $\mu^+ \mu^-$ channels. The reconstruction efficiency for hadronic tau decays is determined with a precision of 7%. | ||
| Links: e-print arXiv:1104.1617 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
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