[PDF] Top 20 Search for direct pair production of the top squark in all-hadronic final states in proton-proton collisions at $\sqrt{s}=8$ TeV with the ATLAS detector

... J. Janssen 21 , M. Janus 171 , G. Jarlskog 80 , N. Javadov 64,b , T. Jav ˚urek 48 , L. Jeanty 15 , J. Jejelava 51a,o , G.-Y. Jeng 151 , D. Jennens 87 , P. Jenni 48,p , J. Jentzsch 43 , C. Jeske 171 , S. J´ez´equel ... See full document

... variety of R-parity conserving supersymmetric models, including ones for which the top squark and neutralino masses are nearly ...exploit the unique characteristics of the ... See full document

... resonance. The model extends the Higgs sector by including one real and one complex triplet, while preserving custodial symmetry, ensuring that the parame- ter ρ = M 2 W /( M 2 Z cos 2 θ W ) = 1 ... See full document

... of the number of objects that pass photon identification criteria to the number that fail at least one of the isolation ...requirements. The control sample also ... See full document

... are the only significant source of background that does not contain a Z bo- ...enriched in t¯ t background events is defined by changing the charge combination of the dilepton ... See full document

... A search for the production of single-top-quarks in association with missing energy is performed in proton–proton collisions at a ... See full document

... on the W +jets flavour composition, i.e. on the mixture of W bb+jets, W cc+jets, W c+jets and W +light–jets processes in ALPGEN simulated ...predicted with sufficient precision, ... See full document

... to the MC event samples based on scale factors, as discussed above, result in an agreement between MC and data distributions that is typically within 10% for all control sam- ples, including samples ... See full document

... cross-section at the 95% CL is obtained. The solid line corresponds to the prediction of the sgluon pair pro- duction cross-section at NLO [24], which is larger ... See full document

... For the M T2 `` signal regions used in this search, the dominant background is ...events with an additional misidentified lepton (see Section ...processes. The rare processes ... See full document

... colleagues in the CERN accelerator departments for the excellent perfor- mance of the LHC and thank the technical and administrative staffs at CERN and at other CMS ... See full document

... a search for direct ˜ t 1 pair production in final states with exactly one isolated charged lepton (electron or muon, 3 henceforth referred to simply as ‘leptons’), ... See full document

... mimic the LQ signal in the lljj channels are: processes that lead to the production of genuine dilepton events such as Z=γ  þ jets, t¯t, and VV þ jets; and processes which ... See full document

... measurement of t¯t production at a center-of-mass energy not previously accessed has great discovery poten- tial for physics beyond the standard model (SM), because new phenomena can ... See full document

... A search for pair production of the B quark with vectorlike couplings to W, Z, and Higgs bosons has been performed, using data recorded by the CMS experiment from ... See full document

... The ATLAS detector [ 20 ] is a multi-purpose detector consisting of a tracking system, calorimeters and an outer muon ...spectrometer. The inner tracking system contains a ... See full document

... this search. Super- symmetry (SUSY) [7, 8] is an attractive extension of the SM because it can resolve the hierarchy problem without unnatural fine-tuning, if the masses ... 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

... acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWFW and FWF, Austria; ANAS, Azer- baijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, ... See full document

... (SM) of particle physics is extremely successful in describing the phenomena of elementary particles and their ...realisation of a more general theory. In its current form, it ... See full document