[PDF] Top 20 Higgs Boson search at the CMS experiment

... 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 bottom quarks ... 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

... indicate that the hypothesis including a Standard Model Higgs boson of such a mass is more favoured than the background hypothesis, albeit at low significance. Note also that the median expectation for the ... See full document

... 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

... In several cases experiments look for resonances at unknown mass values. This is the case, for in- stance, of the Higgs boson search. If an excess of data compared to the background expectation is ... See full document

... the Higgs boson; beyond all reasonable doubt, it is a Higgs boson – and one remarkably similar to that predicted by the ...the Higgs sector; failing any exciting hints, they ... See full document

... new boson with a mass around 125 GeV and properties compatible with those of the standard model (SM) Higgs boson, was announced at CERN by the ATLAS and CMS Collaborations [1, ...the ... See full document

... of Higgs boson production and de- cay rates has been presented by CMS in work [11], along with the consequential constraints placed on its couplings to Standard Model (SM) particles, and on the ... See full document

... the CMS experiment has used the whole datasets collected in 2011 and 2012 to verify in detail that the observed characteristics of that particle are in effect in agreement with what the standard model ... See full document

... The CMS analysis H → ZZ ∗ → 4l is presented, covering its most important aspects: lepton identification, isolation variables, kinematics, event selection, and back- ground ...recent CMS results on the ... See full document

... decays. CMS has analysed the full 2016 dataset searching for t tH ¯ production in final states with 2,3 or 4 leptons ...this search, events are classified based on the number of leptons and their flavour ... See full document

... the Higgs boson until 2012, when the two main experiments of the Large Hadron Collider at CERN, CMS and ATLAS observed a new particle with properties close to those predicted for the Higgs ... See full document

... the Higgs boson, such as decays to neutralinos in supersymmetric models [18] or graviscalars in models with extra spatial dimensions [19, ...invisible Higgs boson decays can be realised ... See full document

... This search is made difficult by the minuscule branching fraction of Higgs decays to µµ, predicted to be ∼ ...W boson pairs decaying to muons. The Higgs signal has a distinctive dimuon ... See full document

... the Higgs field as a possible ex- planation [2–4]. A consequence of the Higgs field would be existence of the spin-zero Higgs boson (H) with quan- tum numbers of the vacuum J PC = 0 ++ ... See full document

... the Higgs boson in two photons is only ∼ 2%), has a very distinctive signature compared to other decay channels: two energetic photons, that can be reconstructed with high precision in the electromagnetic ... See full document

... The clustering method is illustrated in Figure 4.1. By construction, there is no sin- gle crystal which can be assigned to more than one cluster, and some clusters contain less than nine crystals because their 3 × 3 ... See full document

... Also shown in figure 5 are the (lower left) the ob- served limit together with the unbiased expectation for a SM Higgs boson with a mass of 125 GeV. The expectation is shown by the red line. The shaded ... See full document

... the CMS experiment is 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 ... See full document

... the Higgs bo- son in proton-proton interactions, the gluon-gluon fusion being by far the dominant ...W boson and the tt fusion. The Higgs boson can be sought for inclu- sively or exclusively ... See full document