[PDF] Top 20 Search for long lived, multi charged particles in pp collisions at root s=7 TeV using the ATLAS detector

... found for either the | q | = 2e or the | q | > 2e selected ...sample. The results are consistent with the ex- pectation of ...numbers the expected and observed limits are ... See full document

... statistics in the control regions. The next dominant uncertainty on the SM estimates de- rives from the residual uncertainties on the theoretical modeling of the top ...on ... See full document

... particle detector [22] de- signed for physics at the TeV ...scale. Charged particle tracking is provided by an inner detector consisting of a pixel detector, a ... 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

... define the visible tau energy and direction because the products of hadronic tau de- cays are more collimated than those from multi-jet ...on the p T , η and number of tracks are applied to ... See full document

... Similarly, the FCal high-voltage (HV) currents are cali- brated to one of the other detectors at one time to provide a luminosity measurement which can be used to check the stability of other ... See full document

... Y. Jiang 33b , J. Jimenez Pena 168 , S. Jin 33a , A. Jinaru 26a , O. Jinnouchi 158 , M.D. Joergensen 36 , P. Johansson 140 , K.A. Johns 7 , K. Jon-And 147a,147b , G. Jones 171 , R.W.L. Jones 72 , T.J. Jones ... See full document

... X. Chen 172 , S. Cheng 32a , A. Cheplakov 65 , V.F. Chepurnov 65 , R. Cherkaoui El Moursli 135e , V. Chernyatin 24 , E. Cheu 6 , S.L. Cheung 158 , L. Chevalier 136 , G. Chiefari 102a , 102b , L. Chikovani 51a , ... See full document

... leptons 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 ... See full document

... , A. Bogouch 90,* , C. Bohm 146a , V. Boisvert 76 , T. Bold 163,f , V. Boldea 25a , M. Bona 75 , V.G. Bondarenko 96 , M. Boonekamp 136 , G. Boorman 76 , C.N. Booth 139 , P. Booth 139 , S. Bordoni 78 , C. Borer 16 ... See full document

... While the inclusive cross-section is determined at NLL+NLO, the probability for collision events to pass selection requirements (“acceptance”) cannot be determined in such an accurate ... See full document

... forbidden in pp collisions due to lepton flavour ...However, in many extensions of the SM, lep- ton flavour violation (LFV) is ...permitted. In particular, R-parity-violating ... See full document

... reconstructed in the electromagnetic com- partment of the calorimeter with E T > 25 GeV and | η | < 1 ...inner detector track. The electron direction is de- fined as that of ... See full document

... In the absence of a signal, upper limits on the number of events produced by the decay of a new resonance are determined at 95% ...C.L. The same Bayesian approach [94] is used ... See full document

... vertices in the ID was developed for this analysis. The algorithm, based on the ATLAS primary vertex reconstruction algorithm, searches for a group of tracks and then ... See full document

... within the transition region 1.37 < | η | < 1.52 between the barrel and the endcap calorimeters are ...rejected. The medium electron identification criteria [32] on the trans- ... See full document

... of the π v is unconstrained and could be quite long. A long-lived π v can result in signatures that traditional searches fail to ...decays in the inner detector or ... See full document

... with the LHC conditions, most importantly with the beam ...to the search sample where the beam current is far higher than for the other data ...samples. The number ... See full document

... between the ToT and the charge deposition in each pixel is measured in dedicated calibration scans and shows a good ...Therefore, the ToT measurement is well correlated with the ... See full document

... uses the largest number of tracklets to reconstruct a vertex with a 2 probability greater than ...5%. In the forward spectrometer, the reconstructed tracklets do not have a measurement of ... See full document