[PDF] Top 20 Search for direct pair production of scalar top quarks in the single- and dilepton channels in proton-proton collisions at root s=8 TeV

... colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and ... See full document

... t production is approximately five orders of magnitude smaller than that for t ¯ t, and t ¯ tt ¯ t production has not yet been ...t production consistent with predictions would provide a ... See full document

... reports the first measurement from the CMS Collaboration of tW pro- duction in pp collisions at √ s = 13 ...TeV. The measurement uses data recorded by CMS ... See full document

... presents the search for the production of a Higgs boson in association with a single top quark (tHq), using data collected in proton-proton ... See full document

... a top quark and a τ lepton via the RPV coupling λ 0 333 . At hadron colliders, such as the CERN LHC, LQs are mainly pair produced through the quantum chromodynamic (QCD) ... See full document

... a search for new decaying massive particles whose presence is inferred from an imbalance in transverse momentum and which are produced in association with a single top quark that ... See full document

... ``γ channels: Drell-Yan (DY) production is the most important background for the `` ∗ → ``γ channels, mostly originating from production of a photon in association ... See full document

... −ig s 1 2 λ a G a μ −ig 1 2 τ i W μ i −ig  Y B μ , W i μν = ∂μ W i ν − ∂ ν W μ i + g i j k W μ j W ν k , G a μν = ∂ μ G ν a − ∂ ν G μ a + g s f abc G μ b G c ν , σ μν = 1 2 [γ μ , γ ν ], P L ,R = 1 2 (1 ∓ ... See full document

... with at least three central b jets and a hard lepton from the top quark decay chain used for ...t¯t production with additional heavy-flavor quarks, which can be produced ... See full document

... containing at least two charged lepton candidates (either two elec- trons or two muons) and at least two jets for this ...channel. The two highest p T leptons and the two highest ... See full document

... by the compositeness dynam- ics, which represent the strengths of the excited quark couplings to the SM partners and are usually assumed to be of order ...unity. In ... See full document

... a search for singly produced top quarks in association with significant missing energy, cor- responding to the associated production of one or sev- eral undetected neutral ... See full document

... ]. The combined secondary vertex (CSV) b-tagging algorithm [ 38 ] is used to identify jets from the hadronization of b ...quarks. The CSV algorithm exploits the large impact ... See full document

... A search has been performed for pair production of heavy res- onances decaying to pairs of jets in four-jet events from proton– proton collisions at √ ... See full document

... smaller, and is about a 10% effect. Finally, an un- certainty of 15% is applied resulting from the measurement of the tt cross section ...with the choice of the ... See full document

... numbers of events in the various control regions are included in a profile likelihood fit to determine the SM background estimates in each signal ...(discussed in detail ... See full document

... The top quark mass is measured in a sample enriched in events with a single top quark for the first ...time. Top quarks are reconstructed from decays to a W ... See full document

... AllisonReinsvold Hall, J. Hanlon, R.M. Harris, S. Hasegawa, R. Heller, J. Hirschauer, B. Jayatilaka, S. Jindariani, M. Johnson, U. Joshi, B. Klima, M.J. Kortelainen, B. Kreis, S. Lammel, J. Lewis, D. ... See full document

... decay and different decay modes of the Higgs boson have been ...analyzed. In particular, the searches have been optimized for the H → γγ, H → bb, H → WW, and H → τ τ decay ... See full document

... For the M T2 `` signal regions used in this search, the dominant background is ...DY, single-lepton events with an additional misidentified lepton (see Section ...5.2.3), and ... See full document