About
A search for the standard model Higgs boson decaying into a pair of τ leptons is performed using events recorded in proton-proton collisions by the CMS experiment at the LHC in 2016. The data set corresponds to an integrated luminosity of 35.9 fb−1 at a center-of-mass energy of 13 TeV. The τ leptons decay semi-hadronically, or leptonically to an electron or a muon, and the four decay channels with the largest branching fractions are considered. An excess of events is observed over the expected background prediction with a significance of 4.9 standard deviations for a Higgs boson mass mH = 125 GeV, to be compared to an expected significance of 4.7 standard deviations. The best fit of the product of the observed H → ττ signal cross section and branching fraction for mH = 125 GeV is 1.09+0.27−0.26 times the standard model expectation. The combination with the search for decays of the Higgs boson into pairs of τ leptons performed with data collected by the CMS experiment at the LHC at center-of-mass energies of 7 and 8 TeV leads to an observed significance in excess of 5 standard deviations. .
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The talk
Credits and licence
- Institution
- CERN
- Department
- LHC Seminar
- Speaker
- Jan Steggemann
- Year
- 2017
- Language
- English
- Source
- CERN
- Licence
- CERN, as CERN states it. CERN's terms
- Attribution
- © CERN. CERN provides its audiovisual media free of charge for educational and informational use, credited to CERN; this lecture is shown in CERN's own player.
- Who can watch
- CERN gives no rating. Invisible Network shows it to Teens profiles and older, judged from what the source says about it. How courses are placed