A first search is reported for a standard model Higgs boson (H) that is produced through vector boson fusion and decays to a bottom-quark pair. Two data samples, corresponding to integrated luminosities of 19.8 inverse femtobarns and 18.3 inverse femtobarns of proton-proton collisions at √ s = 8 TeV were selected for this channel at the CERN LHC. The observed significance in these data samples ...

Recent published and preliminary precision electroweak measurements are reviewed, including new results on the mass of the top quark and mass and width of the W boson. The experimental results are compared with the predictions of the Standard Model and are used to constrain its free parameters, notably the mass of the Higgs boson. The agreement between measurements and expectations from theory ...

The latest preliminary combined results of the Higgs boson searches from the LEP experiments ALEPH, DELPHI, L3 and OPAL are presented. A general scan of the MSSM parameters is performed and leads to stringent lower mass limits and for the first time excludes low tanβ values. Presented at the Seventh International Symposium on Particles, Strings, and Cosmology, PASCOS–99, Granlibakken, USA, Dec....

The search for the Higgs boson, the last missing particle in the Standard Model (SM) responsible for the electroweak symmetry breaking, is a primary goal of the CERN Large Hadron Collider (LHC), and is a central part of Fermilab’s Tevatron program. In the Standard Model, mass generation is triggered by the Higgs mechanism, which predicts the existence of one scalar particle, the Higgs boson [1]...

In the absence of a light Higgs boson, the mechanism of electroweak symmetry breaking will be best studied in processes of vector boson scattering at high mass. Various models predict resonances in this channel. Scalar and vector resonances have been investigated in the WW , WZ and ZZ channels. The ability of ATLAS to measure the di-boson crosssection over a range of centre-of-mass energies has...

The novel feature of a Higgs-triplet representation is a nonzero tree-level coupling of HWZ, which is absent in all Higgs-doublet models. We study the associated production of a singly-charged Higgs boson of the Higgs-triplet representation with a W or Z boson at hadron colliders, followed by the H → WZ decay. We find that the 2l+ 4j final state gives an interesting level of signal with a negli...

A search for the Standard Model Higgs boson has been performed with the OPAL detector at LEP based on the full data sample collected at √ s ≈ 192–209 GeV in 1999 and 2000, corresponding to an integrated luminosity of approximately 426 pb−1. The data are examined for their consistency with the background-only hypothesis and various Higgs boson mass hypotheses. A lower bound of 109.7 GeV is obtai...

Searching for and potential discovery of Higgs boson(s) both within and beyond the standard model is perhaps the most visible physics goal of the current Fermilab Tevatron program. In this proceeding, recent results from both the CDF and DØ experiments based on analyses of datasets with integrated luminosities between 1.7 and 3.0 fb−1 are summarized. The combined Tevatron cross section upper li...

We study interference effects between resonant and nonresonant amplitudes for the γγ → W + W − process at a backscattered photon-photon collider. We show that a Higgs boson with M H > ∼ 200 GeV is manifest as a resonant dip in the W + W − invariant mass spectrum and we investigate its statistical significance. There has been recent interest in weak gauge boson pair production in γγ collisions a...

The LEP experiments completed data-taking in November 2000. New preliminary combined results of the four LEP experiments ALEPH, DELPHI, L3 and OPAL are presented for various Higgs boson searches. Presented at the Third International Conference on Non-Accelerator New Physics, NANP–01, Moscow, Russia, June 2001 Complete LEP Data: Status of Higgs Boson Searches André Sopczak Lancaster University E...