Abstract
A measurement of the H→ττ signal strength is performed using events recorded in proton–proton collisions by the CMS experiment at the LHC in 2016 at a center-of-mass energy of 13TeV. The data set corresponds to an integrated luminosity of 35.9fb−1. The H→ττ signal is established with a significance of 4.9 standard deviations, to be compared to an expected significance of 4.7 standard deviations. The best fit of the product of the observed H→ττ signal production cross section and branching fraction is 1.09−0.26 +0.27 times the standard model expectation. The combination with the corresponding measurement performed with data collected by the CMS experiment at center-of-mass energies of 7 and 8TeV leads to an observed significance of 5.9 standard deviations, equal to the expected significance. This is the first observation of Higgs boson decays to τ leptons by a single experiment.
Original language | English |
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Pages (from-to) | 283-316 |
Number of pages | 34 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 779 |
DOIs | |
Publication status | Published - 2018 Apr 10 |
Bibliographical note
Publisher Copyright:© 2018 The Author(s)
Keywords
- CMS
- Higgs
- LHC
- Observation
- Physics
- Tau
ASJC Scopus subject areas
- Nuclear and High Energy Physics