We study the neutral Higgs boson production via the gluon fusion process with the ττ final state at the upgraded Fermilab Tevatron, including a complete simulation of signal channels and leading background processes. For the SM Higgs boson, this h → ττ channel may provide important addition for the Higgs boson discovery in the mass range 120 − 140 GeV. In minimal supersymmetric models, natural ...

We present a model–independent study of the effects of a neutral Higgs boson without definite CP–parity in the process γγ → tt̄ around the mass pole of the Higgs boson. Near the resonance pole, the interference between the Higgs–exchange and the continuum amplitudes can be sizable if the photon beams are polarized and helicities of the top and anti–top quarks are measured. Study of these interfe...

We discuss how mixing between the Standard Model Higgs boson, h, and the radion of the Randall-Sundrum model can lead to significant shifts in the expected properties of the Higgs boson. In particular we show that the total and partial decay widths of the Higgs, as well as the h → gg branching fraction, can be substantially altered from their SM expectations, while the remaining branching fract...

New physics near the TeV scale can generate dimension-six operators that modify the production rate and branching ratios of the Higgs boson. Here, we show how Higgs boson pair production can yield complementary information on dimension-six operators involving the gluon field strength. For example, the invariant mass distribution of the Higgs boson pair can show the extent to which the masses of...

Higgs boson pair production is considered at next-to-leading order with special emphasis on the effect of a finite top quark mass. It is shown that, unlike for single-Higgs boson production, power-suppressed corrections are numerically important.

We summarize discovery potentials for the Standard Model Higgs boson produced in ee collisions and measurements of its detailed properties. Prospects for Higgs boson detection within the Minimal Supersymmetric Standard Model are also discussed.

We consider Higgs boson pair production at the LHC in the bb ̄W+Wchannel, with subsequent decay of the W+Wpair into ��jj. Employing jet substructure and event reconstruction techniques, we show that strong evidence for this channel can be found at the 14 TeV LHC with 600fb-1 of integrated luminosity, thus improving the current reach for the production of Higgs boson pairs. This measurement will ...

A measurement of the production processes of the recently discovered Higgs boson is performed in the two-photon final state using 4.5 fb−1 of proton-proton collisions data at ffiffi s p 1⁄4 7 TeV and 20.3 fb−1 at ffiffi s p 1⁄4 8 TeV collected by the ATLAS detector at the Large Hadron Collider. The number of observed Higgs boson decays to diphotons divided by the corresponding Standard Model pr...

The total cross section for Higgs boson production via the dominant gluon fusion mechanism including NLO [two-loop] QCD corrections can be calculated numerically with the program HIGLU. The QCD corrections are included for arbitrary Higgs and quark masses and increase the cross section at the LHC by up to a factor of 2. The source code HIGLU provides the evaluation of the production of the Stan...

One of the major goals of the LHC is to discover the Higgs boson, which is the only particle of the Standard Model (SM) that has not been seen yet at colliders. Even if we cannot predict its mass, SM precision electroweak fits seem to favour a low-mass Higgs,2 and LEP data excluded a mass below 114 GeV.3 That’s why we are going to focus on the search for a light Higgs boson at the LHC, assuming...