[PDF] Top 20 Search for single b* quark production with the ATLAS detector at root s=7 TeV

... ciated with the jet must be at least ...overlapping with jets within ∆R < 0.4 are removed and the jet is kept. The closest jet overlapping with electrons within ∆R < ... See full document

... validate the analysis procedure, to help estimate the SM back- grounds in the signal region and to investigate specific signal mod- ...generated with Pythia [25], using the MRST 2007 LO* ... See full document

... date for µµqq contact interactions. We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be ... See full document

... acknowledge the support of ANPCyT, Argentina; YerPhI, Ar- menia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST ... See full document

... CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated ...acknowledge the support of ... See full document

... question with more than 5σ confidence level. Due to the excellent ATLAS detector performance, the analysis presented here not only demonstrates that the particle presently ... See full document

... N. Grigalashvili 64 , A.A. Grillo 137 , S. Grinstein 12 , Ph. Gris 34 , Y.V. Grishkevich 97 , J.-F. Grivaz 115 , A. Grohsjean 42 , E. Gross 172 , J. Grosse-Knetter 54 , J. Groth-Jensen 172 , K. Grybel 141 , D. ... See full document

... in the Standard Model (SM) suggest that they might be a part of some symmetry at en- ergy scales above the electroweak symmetry breaking ...bosons with spin 0 or 1, and frac- tional electric ... See full document

... CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated ...acknowledge the support of ... See full document

... from the ISAJET [31] v7.80 program. The SUSY sam- ple yields are normalised to the results of next-to-leading-order (NLO) calculations as obtained using PROSPINO [32] ...and the resum- mation ... See full document

... in the calorimeters using the anti-k t algorithm [19] with radius parameter R = 0 ...4. The reconstructed jet energy is cali- brated using p T - and η -dependent correction factors based on MC ... See full document

... M.A.B. do Vale 24c , D. Dobos 30 , M. Dobre 26a , C. Doglioni 49 , T. Doherty 53 , T. Dohmae 156 , J. Dolejsi 129 , Z. Dolezal 129 , B.A. Dolgoshein 98,∗ , M. Donadelli 24d , S. Donati 124a,124b , P. Dondero ... See full document

... on the matrix method [33] is followed. The method builds upon the use of “tight” and “loose” lepton selection cri- teria mentioned in Section ...3. For these backgrounds, the efficiency ... See full document

... to the NNLO cross- sections obtained using FEWZ ...assess the systematic uncertainties associated with the choice of generator for t ¯ t production, and AcerMC [29] samples are ... See full document

... acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Aus- tralia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST ... See full document

... normalise the MC simulation. The control sample is defined by requiring the invariant mass of the soft muon and the muon from the decay of the W -boson candidate to be ... See full document

... in the Standard Model (SM) lead to the supposition that there could be a fundamental relationship between them at a suffi- ciently high energy scale, manifested by the existence of lep- ... See full document

... CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; ARTEMIS, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Geor- gia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, ... See full document

... without b-flavored parent hadrons are identified using an algorithm, optimized for charm tagging, based on a neural network that exploits both impact parameter and secondary vertex information and ... See full document

... STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States of ...America. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from ... See full document