Compact Muon Solenoid
LHC, CERN
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| CMS-HIG-12-041 ; CERN-PH-EP-2012-372 | ||
| Study of the Mass and Spin-Parity of the Higgs Boson Candidate via Its Decays to Z Boson Pairs | ||
| CMS Collaboration | ||
| 29 December 2012 | ||
| Phys. Rev. Lett. 110 (2013) 081803 [Erratum] | ||
| Abstract: A study is presented of the mass and spin-parity of the new boson recently observed at the LHC at a mass near 125 GeV. An integrated luminosity of 17.3 inverse femtobarns, collected by the CMS experiment in proton-proton collisions at center-of-mass energies of 7 and 8 TeV, is used. The measured mass in the ZZ channel, where both Z bosons decay to e or $\mu$ pairs, is 126.2 $\pm$ 0.6 (stat.) $\pm$ 0.2 (syst.) GeV. The angular distributions of the lepton pairs in this channel are sensitive to the spin-parity of the boson. Under the assumption of spin 0, the present data are consistent with the pure scalar hypothesis, while disfavoring the pure pseudoscalar hypothesis. | ||
| Links: e-print arXiv:1212.6639 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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