Measuring the Higgs sector

@article{Lafaye2009MeasuringTH,
  title={Measuring the Higgs sector},
  author={Remi Lafaye and Tilman Plehn and Michael Rauch and Dirk Zerwas and Michael D{\"u}hrssen},
  journal={Journal of High Energy Physics},
  year={2009},
  volume={2009},
  pages={009-009}
}
If we find a light Higgs boson at the LHC, there should be many observable channels which we can exploit to measure the relevant parameters in the Higgs sector. We use the SFitter framework to map these measurements on the parameter space of a general weak-scale effective theory with a light Higgs state of mass 120 GeV. Our analysis benefits from the parameter determination tools and the error treatment used in new-physics searches, to study individual parameters and their error bars as well as… 

Extended Scalar Sector and Fat Jets

After a discovery of the Higgs boson the next question is what are its couplings. At the LHC there should be many observable channels which can be exploited to measure the relevant parameters in the

Measuring the Higgs boson couplings

Once a Higgs boson has been discovered, it is also important to know what are its properties, in particular its couplings to the other particles. At the LHC, there will be many observable channels

The gauge-Higgs legacy of the LHC Run I

A bstractThe effective Lagrangian expansion provides a framework to study effects of new physics at the electroweak scale. To make full use of LHC data in constraining higher-dimensional operators we

Measuring extended Higgs sectors as a consistent free couplings model

Extended Higgs sectors appear in many models for physics beyond the Standard Model. Current Higgs measurements at the LHC are starting to significantly constrain them. We study their Higgs coupling

LHT model and Higgs boson production in association with a weak gauge boson at the LHC

Considering the process pp → VH + X(V = W or Z) is a significant channel for searching for a light Higgs boson, we calculate the contributions of the littlest Higgs model with T-parity (called LHT

Measuring supersymmetry with heavy scalars

Supersymmetry with heavy scalars is a model where, at the LHC we have to rely on rate measurements to determine the parameters of the underlying new physics. For this example we show how to combine

Determination of Higgs-boson couplings (SFitter)

After the discovery of a Higgs boson, the next step is to measure its properties and test their accordance with the predictions of the Standard Model, in particular the couplings of the Higgs boson.

Precision Measurements of Higgs Couplings: Implications for New Physics Scales

The measured properties of the recently discovered Higgs boson are in good agreement with predictions from the Standard Model. However, small deviations in the Higgs couplings may manifest themselves
...

References

SHOWING 1-10 OF 238 REFERENCES

Searching for the Higgs boson

These lectures on Higgs boson collider searches were presented at TASI 2006. I first review the Standard Model searches: what LEP did, prospects for Tevatron searches, the program planned for LHC,

Maximum significance at the LHC and Higgs decays to muons

We present a new way to define and compute the maximum significance achievable for signal and background processes at the LHC, using all available phase space information. As an example, we show that

Multi-Higgs boson production in the standard model and beyond

We present a calculation of the loop-induced processes gg ! HH and gg ! HHH, and investigate the observability of multi-Higgs boson production at the CERN Large Hadron Collider (LHC) in the Standard

Anomalous Higgs boson couplings in vector boson fusion at the CERN LHC

Deviations from standard model expectations in the Higgs sector can be parametrized by an effective Lagrangian. The corresponding anomalous couplings have been implemented in a Monte Carlo program

Four generations and Higgs physics

In the light of the LHC, we revisit the implications of a fourth generation of chiral matter. We identify a specific ensemble of particle masses and mixings that are in agreement with all current

Production of neutral Higgs-boson pairs at LHC

Abstract. The reconstruction of the Higgs potential in the Standard Model or supersymmetric theories demands the measurement of the trilinear Higgs couplings. These couplings affect the multiple

Effects of genuine dimension-six Higgs operators

We systematically discuss the consequences of genuine dimension-six Higgs operators. These operators are not subject to stringent constraints from electroweak precision data. However, they can modify

Prospects to measure the Higgs boson properties in ATLAS

As soon as a significant signal in one of the Higgs boson discovery channels is observed, it will be important to establish its nature. To do this, a precise measurements of its properties is
...