Speaker
Description
The off-shell production of SM Higgs boson, at the high-mass off-peak region beyond
2mZ, well above the measured resonance mass of mH=125 GeV, has a substantial cross
section at the LHC, due to the increased phase space as the Z bosons become on-shell
with the increasing energy scale. This presents a novel way of characterizing the
properties of the Higgs boson in terms of the off-shell event yields, normalized to the
SM prediction (referred to as signal strength µ), and the associated off-shell Higgs
boson couplings. Assuming the ratio of the Higgs boson couplings to the SM predictions
is independent of the momentum transfer of the Higgs boson production mechanism, a
combination with the on-shell signal-strength measurement was used to set indirect
limits on the total Higgs boson width with the ATLAS data collected in proton-proton
collisions at the centre-of-mass energy of √s = 13 TeV (36 fb-1).
Details
Theodota Lagouri
theodota.lagouri@cern.ch
| Is this abstract from experiment? | Yes |
|---|---|
| Name of experiment and experimental site | ATLAS |
| Is the speaker for that presentation defined? | Yes |
| Internet talk | Maybe |
