Conveners
EF01+02+03+04+07: Higgs, EWK, BSM Higgs
- Isobel Ojalvo (Princeton University (US))
- Andrey Korytov (University of Florida)
- Ayres Freitas (University of Pittsburgh)
- Patrick Meade (Stony Brook)
- Junping Tian (University of Tokyo)
- Caterina Vernieri (SLAC)
- Reinhard Schwienhorst (Michigan State University)
- Alberto Belloni ()
- Sally Dawson (BNL)
- Doreen Wackeroth (University at Buffalo, SUNY)
- Yen-Jie Lee (Massachusetts Institute of Technology)
- Swagato Mukherjee (BNL)
Delphes is a framework for fast simulation of a generic collider experiment. It allows to take into account basic experimental effects as acceptance, efficiency and detector resolution, and provides also expected results of event reconstruction (as lepton identification, flavour taging and jet clustering). We would like to present a new model for fast ILC detector simulation in Delphes. While...
The Higgs boson self-coupling is accessible in the double Higgstrahlung process $e^+e^- \rightarrow ZHH$ and the double $WW$ fusion process $e^+e^- \rightarrow \nu \bar{\nu}HH$. Present ILC studies typically evaluate sensitivity to this coupling at center-of-mass energies of $\sqrt{s}=500$ GeV and $\sqrt{s}=1000$ GeV, two well-established ILC operating points. In this study we investigate the...
We have studied on radiative corrections to observables for the discovered Higgs boson and published the computation program, H-COUP. Current version of H-COUP evaluates the branching ratios with NLO EW corrections and NNLO QCD corrections in various extended Higgs models, i.e., the Higgs singlet model, 4 types of two Higgs doublet models and the inert doublet model. Using the program, we...
We study associated production of the Higgs boson with a photon in various extended Higgs models at future electron-positron colliders. The process is loop-induced, and hence the cross sections are sensitive to additional scalars and model parameters. We discuss how much new physics contributions can enhance the signal rate.
The talk is based on [S.Kanemura, K.Mawatari, K.Sakurai, Phys....
We study the high scale twisted custodial symmetry in two Higgs doublet models and its phenomenology. We show that this scenario can be valid up to Planck scale, and both discovered Higgs boson couplings and electroweak precision observable can be explained without decoupling of additional Higgs bosons. We find that the characteristic mass spectrum is predicted and this scenario can be studied...
We assess the sensitivity of the Large Hadron
Collider (LHC) in the high luminosity (HL) run alone and in combination
with a possible future International Linear Collider (ILC) to probe
heavy neutral Higgs bosons. We employ the Minimal Supersymmetric
Standard Model (MSSM) as a framework and assume the light \cp-even
MSSM Higgs boson to be the Higgs boson observed at $125$~GeV.
We...
The Higgs trilinear coupling provides a unique opportunity to study the structure of the Higgs sector and search for BSM Physics. In models with extended Higgs sectors, large deviations in this coupling can appear at one loop because of non-decoupling effects in the radiative corrections from extra scalars.
It is then natural to ask how this result can be modified at two loops. I will present...
If the charged Higgs mass is below the top mass, then the usual decay modes are into $\tau\nu$ or $\bar{c}s$. Here, it is pointed out that in some models, the decay into $\mu\nu$ can be substantial, in many cases 50% and in some as high as 100%. Searches for this decay mode are encouraged.
We present a phenomenological program to look for extended Higgs sectors with large couplings to light quarks. These theories come with complementary features in flavor physics, precision Higgs studies, and searches for new resonances. The most striking signals of these theories resonant production of Higgs pairs via quark fusion, with larger rates than models usually studied at the LHC, but...
Since the discovery of the Higgs boson, the focus in Run 2 (2015--2018) of the LHC has shifted from observation to precision measurements of its properties. The couplings of the Higgs boson to other elementary particles can be predicted by the standard model of particle physics only when its mass is known. This motivates precise measurements of the mass of the Higgs boson. These measurements...