[PDF] Top 20 A search for the Standard Model Higgs boson at OPAL

... channel search, but a brief presentation is given for ...total search sensitivity because the decay rate of Z* to neutrinos is about 3 times its decay to muons and ...containing Higgs bosons was ... See full document

... to search for the Standard Model Higgs ...The Higgs would be statistically revealed by the presence of a resonance peak in the 4-lepton invariant mass ...The Higgs mass is a free ... See full document

... The search for the Standard Model (SM) Higgs Boson [1– 4] has been one of the highest priorities in the field of parti- cle ...a boson decaying to a pair of photons or massive ... See full document

... The flavour composition of the W + jet and Z + jet samples is determined using templates produced from three exclusive MC samples containing at least one true b jet, at least one true c jet, or only light jets. The ... See full document

... the Standard Model (SM) [1–3] Higgs boson [4– 7] was reported by the ATLAS [8] and the CMS [9] collaborations in July ...scalar boson have been extensively ...the Higgs ... See full document

... exclusive Higgs boson production pro- cess with additional jets in the H → γ γ , H → W W ( ∗ ) → ν ν and H → τ + τ − channels is estimated using the prescription of ...off-shell Higgs boson ... See full document

... Figure 3. Observed (solid) and expected (dashed) 95% confi- dence level upper limits on the Higgs boson cross-section times branching ratio, normalized to the SM expectation, as a function of the ... See full document

... and 130 GeV) for each Higgs decay mode and the combi- nation is given in Fig. 10. The bands around ^ illustrate the interval corresponding to 2 ln ðÞ < 1 and represent an approximate 1 variation. While the ... See full document

... a Higgs boson with a mass of about 125 GeV has prompted the question of whether or not this particle is part of a larger and more complex Higgs sector than that envisioned in the Standard ... See full document

... for Higgs boson production, the associated branching fractions [24], as well as their uncer- tainties, are compiled in ...the Higgs boson, which is implemented through an ad hoc Breit-Wigner ... See full document

... SM pair production of Z bosons has a final state identical to the signal, and is therefore expected to survive most of the applied selection criteria and form a continuum in the transverse mass distribution (defined ... See full document

... Theoretical uncertainties are estimated for the signal and for all background contributions derived using MC simu- lation. Uncertainties relating to higher-order QCD correc- tions and MC modeling choices are estimated by ... See full document

... the Standard Model Higgs boson is produced by four processes, as shown by the Feynman diagrams in figure ...the Higgs boson is produced by the fusion of two initial state gluons, ... See full document

... Z boson decay and an extra lepton and moderate missing transverse energy from the leptonic decay of W boson plus 2 jets from hadronic decay of W boson (|m j j −m W | < 60 GeV) are the signatures ... See full document

... 6.27 Impact of the top ten ranked NP in the combined 012 fit on the fitted signal strength, µ. The NP are listed in order of rank down the y-axis. The black circles show the deviation of the NPs from the nominal pre-fit ... See full document

... the search of the Higgs boson in the two- photon channel decay relies on four main points: high invariant-mass resolution, vital to distinguish a tiny peak on a huge background; e ff ective photon ... See full document

... and OPAL [7], while being consistent with the background hypothesis, slightly favoured the signal plus background hypothesis in this mass region; DELPHI [8] reported a slight deficit with respect to the background ... See full document

... neutral Higgs boson, h, and W bosons: H → W − H + → W − W + h, see ...neutral Higgs boson decays to bb and it is assumed to have mass 125 ...W boson decays, which is the main background ... See full document

... low-mass Higgs boson is produced in association with a vector boson have cross sections of ...A search for the standard model Higgs boson (H) decaying to a pair of ... See full document

... 12062 Search for Standard Model Higgs boson in the four-lepton channel with. ATLAS[r] ... See full document