# CERN Accelerating science

RESTRICTED ATLAS COLLECTIONS
If you are an active ATLAS physicist but you are not able to access restricted ATLAS collections on CDS, such as ATLAS Communications or ATLAS Internal Notes, please read the Access to Protected ATLAS Information page or contact ATLAS Info-Protection@cern.ch.

# ATLAS Notes

2015-05-29
10:58
 Measurement of the Top Quark Mass in Dileptonic Top Quark Pair Decays with $\mathbf{\sqrt{s}=7}$~TeV ATLAS Data / Maier, Andreas Alexander (Max-Planck-Institut fuer Physik) The top quark mass in dileptonic top quark pair decays was measured using $4.7~\mathrm{fb}^{-1}$ of $\sqrt{s}=7~\mathrm{TeV}$ proton-proton ($pp$) collision data recorded by the ATLAS experiment at the LHC in 2011. [...] ATL-PHYS-PROC-2015-033. - 2015. - 6 p. Original Communication (restricted to ATLAS) - Full text

2015-05-28
18:40
 Searches for other non-SUSY new phenomena at the LHC / Kajomovitz, Enrique (Duke University, Department of Physics) The ATLAS and CMS collaborations collected datasets of approximately 20 fb−1 of pp col- √ lisions at s = 8 TeV produced by the LHC during the Run-1 period. [...] ATL-PHYS-PROC-2015-032. - 2015. - 4 p. Original Communication (restricted to ATLAS) - Full text

2015-05-27
14:54
 Dark matter searches at ATLAS and CMS, Run1 results and Run2 potential / Doglioni, Caterina (Lunds universitet, Fysiska institutionen) Despite the recent discovery of the Higgs boson contributing to the success of the Standard Model, the large excess of Dark Matter in the universe remains one of the outstanding questions in science. [...] ATL-PHYS-PROC-2015-031. - 2015. - 8 p. Original Communication (restricted to ATLAS) - Full text

2015-05-26
17:45
 Design and performance of the ATLAS jet trigger system / Tavares Delgado, Ademar (Laboratorio de Instrumentacao e Fisica Experimental de Particulas (LIP)) ; ATLAS Collaboration (Laboratorio de Instrumentacao e Fisica Experimental de Particulas (LIP)) The CERN Large Hadron Collider is the biggest and most powerful particle collider made by man. [...] ATL-DAQ-PROC-2015-019. - 2015. - 7 p. Original Communication (restricted to ATLAS) - Full text

2015-05-26
16:44
 Optimisation of the ATLAS Track Reconstruction Software for Run-2 / Salzburger, Andreas (European Laboratory for Particle Physics, CERN) The reconstruction of particle trajectories in the tracking detectors of experiments at the Large Hadron Collider (LHC) is one of the most complex parts in analysing the collected data from beam-beam collisions. [...] ATL-SOFT-PROC-2015-056. - 2015. - 8 p. Original Communication (restricted to ATLAS) - Full text

2015-05-22
15:16
 Bringing ATLAS production to HPC resources - A use case with the Hydra supercomputer of the Max Planck Society / Kennedy, John (Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen) ; Kluth, Stefan (Max-Planck-Institut fuer Physik) ; Mazzaferro, Luca (INFN Roma Tor Vergata and Universita' di Roma Tor Vergata, Dipartimento di Fisica) ; Walker, Rodney (Fakultaet fuer Physik, Ludwig-Maximilians-Universitaet Muenchen) The possible usage of HPC resources by ATLAS is now becoming viable due to the changing nature of these systems and it is also very attractive due to the need for increasing amounts of simulated data. [...] ATL-SOFT-PROC-2015-055. - 2015. - 8 p. Original Communication (restricted to ATLAS) - Full text

2015-05-21
13:33
 Measurement of the top mass at the LHC / Balli, Fabrice (School of Physics and Astronomy, University of Manchester) The top quark is the most massive fundamental particle ever observed. [...] ATL-PHYS-PROC-2015-030. - 2015. - 4 p. Original Communication (restricted to ATLAS) - Full text

2015-05-20
16:11
 Scaling up ATLAS production system for the LHC Run 2 and beyond: project ProdSys2 / Borodin, Mikhail (National Research Nuclear University MEPhI) ; De, Kaushik (The University of Texas at Arlington) ; García Navarro, José Enrique (Instituto de Fisica Corpuscular (IFIC), Centro Mixto Universidad de Valencia - CSIC) ; Golubkov, Dmitry (State Research Center Institute for High Energy Physics (IHEP)) ; Klimentov, Alexei (Brookhaven National Laboratory (BNL)) ; Maeno, Tadashi (Brookhaven National Laboratory (BNL)) ; Vaniachine, Alexandre (Argonne National Laboratory) The Big Data processing needs of the ATLAS experiment grow continuously, as more data and more use cases emerge. [...] ATL-SOFT-PROC-2015-054. - 2015. - 8 p. Original Communication (restricted to ATLAS) - Full text

2015-05-20
08:45
 Constraints on promptly decaying supersymmetric particles with lepton-number- and R-parity-violating interactions using Run-1 ATLAS data In this document, a selection of ATLAS searches for supersymmetry (SUSY), mostly optimised for R-parity-conserving SUSY, are reinterpreted in new R-parity-violating SUSY models where an unstable neutralino decays promptly to leptons and/or jets. [...] ATLAS-CONF-2015-018. - 2015. Original Communication (restricted to ATLAS) - Full text

2015-05-20
06:40
 The ATLAS Trigger/DAQ Authorlist This is the ATLAS Trigger/DAQ Authorlist, version 15.04 (April 01, 2015).. ATL-DAQ-PUB-2015-001. - 2015. Original Communication (restricted to ATLAS) - Full text

Focus on:
ATLAS PUB Notes (2,594)