Conveners
Higgs boson pairs and Higgs potential 1 - sal IX
- Javier Mazzitelli (Paul Scherrer Institut (CH))
- Fabio Monti (CERN)
- Marco Valente (TRIUMF (CA))
We revisit the stability of the Standard Model vacuum, and investigate its quantum effective potential using the highest available precision in theory tools and experimental input parameters to date. We observe that the stability of the electroweak vacuum centrally depends on the values of the top mass and the strong coupling constant and how their uncertainties impact SM vacuum stability. We...
The measurement of the production of Higgs boson pairs (HH) at the LHC allows the exploration of the Higgs boson interaction with itself and is thus a fundamental test of the Standard Model theory and has a key role in the determination of the Higgs boson nature. The most recent results from the CMS collaboration on measurements of non-resonant HH production using different final states and...
In the Standard Model, the ground state of the Higgs field is not found at zero but instead corresponds to one of the degenerate solutions minimising the Higgs potential. In turn, this spontaneous electroweak symmetry breaking provides a mechanism for the mass generation of nearly all fundamental particles. The Standard Model makes a definite prediction for the Higgs boson self-coupling and...
The virtual corrections for $gg \to HH$ at NLO QCD have been efficiently approximated using a Taylor expansion in the limit of a forward kinematics. The same method has been recently applied to the calculation of a subset of the NNLO corrections, which are desirable given the significant impact, at NLO, of the uncertainty due to the choice of the top mass renormalization scheme. In this talk,...
Higgs pair production from gluon fusion is a process of high interest for the upcoming HL-LHC phase. In this talk we present our calculation of electro-weak NLO contributions comprising Yukawa-type and Higgs self-coupling corrections at two-loop level. Also, we show the effect of these corrections on the Higgs pair's invariant mass distribution.