Stefania Xella

Stefania Xella

Associate Professor, Guest Researcher


  1. 2013
  2. Published

    Search for long-lived stopped R-hadrons decaying out of time with pp collisions using the ATLAS detecto

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 3 Dec 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 88, 11, p. 88 11 p., 112003.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton-proton collisions at root s=7 TeV with the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 26 Feb 2013, In: Physics Letters B. 719, 4-5, p. 280-298

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Search for long-lived, multi-charged particles in pp collisions at root s=7 TeV using the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, A. S., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Boelaert, N. M. P., Jørgensen, M. D., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 24 May 2013, In: Physics Letters B. 722, 4-5, p. 305-323

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Search for microscopic black holes in a like-sign dimuon final state using large track multiplicity with the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, John Renner, Klinkby, E. B., Heisterkamp, S. J. F., Boelaert, N. M. P., Jørgensen, M. D., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 1 Oct 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 88, 7, 072001.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Search for new phenomena in events with three charged leptons at root s=7 TeV with the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Jørgensen, M. D., Heisterkamp, S. J. F., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 4 Mar 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 87, 5, 052002.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Search for new phenomena in final states with large jet multiplicities and missing transverse momentum at root s=8 TeV proton-proton collisions using the ATLAS experiment

    Aad, G., Abajyan, T., Abbott, B., Dam, Mogens, Hansen, Peter Henrik, Hansen, Jørgen Beck, Hansen, Jørn Dines, Hansen, John Renner, Boelaert, N. M. P., Jørgensen, M. D., Heisterkamp, S. J. F., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 21 Oct 2013, In: Journal of High Energy Physics (Online). 2013, 10, 130.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Search for new phenomena in the WW -> vertical bar v vertical bar ' v ' final state in pp collisions at root s=7 TeV with the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Boelaert, N. M. P., Jørgensen, M. D., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 8 Jan 2013, In: Physics Letters B. 718, 3, p. 860-876

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Search for nonpointing photons in the diphoton and E-T(miss) final state in root s=7 TeV proton-proton collisions using the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 1 Jul 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 88, 1, 012001.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Search for pair-produced massive coloured scalars in four-jet final states with the ATLAS detector in proton-proton collisions at root s=7 TeV

    Aad, G., Abajyan, T., Abbott, B., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Boelaert, N. M. P., Heisterkamp, S. J. F., Jørgensen, M. D., Klinkby, E. B., Mehlhase, S., Nilsson, B. S., Løvschall-Jensen, A. E., Petersen, Troels Christian & Xella, Stefania, 1 Jan 2013, In: The European Physical Journal C: Particles and Fields. 73, 1, 2263.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Search for resonances decaying into top-quark pairs using fully hadronic decays in pp collisions with ATLAS at root s=7 TeV

    Aad, G., Abajyan, T., Abbott, B., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, John Renner, Boelaert, N. M. P., Løvschall-Jensen, A. E., Klinkby, E. B., Mehlhase, S., Jørgensen, M. D., Heisterkamp, S. J. F., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 1 Jan 2013, In: Journal of High Energy Physics (Online). 2013, 1, 116.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Search for resonant diboson production in the WW/WZ -> lvjj decay channels with the ATLAS detector at root s=7 TeV

    Aad, G., Abjyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 17 Jun 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 87, 11, 112006.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Search for single b*-quark production with the ATLAS detector at root s=7 TeV

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Boelaert, N. M. P., Jørgensen, M. D., Klinkby, E. B., Mehlhase, S., Løvschall-Jensen, A. E., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 25 Apr 2013, In: Physics Letters B. 721, 4-5, p. 171-189

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Search for squarks and gluinos with the ATLAS detector in final states with jets and missing transverse momentum using 4:7 fb(-1) of root s=7 TeV proton-proton collision data

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 87, 1, 012008.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Search for supersymmetry in events with photons, bottom quarks, and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Adballah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, John Renner, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 26 Feb 2013, In: Physics Letters B. 719, 4-5, p. 261-279

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Search for t(t)over-bar resonances in the lepton plus jets final state with ATLAS using 4.7 fb(-1) of pp collisions at root s=7 TeV

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Boelaert, N. M. P., Jørgensen, M. D., Heisterkamp, S. J. F., Klinkby, E. B., Mehlhase, S., Løvschall-Jensen, A. E., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 23 Jul 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 88, 1, 012004.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Search for the neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at root s=7 TeV with the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Boelaert, N. M. P., Heisterkamp, S. J. F., Jørgensen, M. D., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 1 Feb 2013, In: Journal of High Energy Physics (Online). 2013, 2, 095.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Search for third generation scalar leptoquarks in pp collisions at root s=7 TeV with the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Boelaert, N. M. P., Jørgensen, M. D., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 15 Jun 2013, In: Journal of High Energy Physics (Online). 2013, 6, 033.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at root s=7 TeV

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Klinkby, E. B., Løvschall-Jensen, A. E., Boelaert, N. M. P., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 26 Mar 2013, In: Physics Letters B. 720, 4-5, p. 277-308

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Single hadron response measurement and calorimeter jet energy scale uncertainty with the ATLAS detector at the LHC

    Aad, G., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Klinkby, E. B., Løvschall-Jensen, A. E., Boelaert, N. M. P., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 1 Mar 2013, In: European Physical Journal C. 73, 3, 2305.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Triggers for displaced decays of long-lived neutral particles in the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 1 Jul 2013, In: Journal of Instrumentation. 8, P07015.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    An upgraded ATLAS Central Trigger for post-2014 LHC luminosities

    Anders, G., Berge, D., Bertelsen, Henrik, Childers, T., Dam, Mogens, Dobson, E., Ellis, N., Farthouat, P., Gabaldon, C., Gorini, B., Haas, S., Kaneda, M., Maettig, S., Messina, A., Ohm, C., Pauly, T., Poettgen, R., Spiwoks, R., Wengler, T. & Xella, Stefania, 1 Feb 2013, In: Journal of Instrumentation. 8, C02031.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    The upgrade of the ATLAS Level-1 Central Trigger Processor

    Anders, G., Berge, D., Bertelsen, P. H., Dam, Mogens, Dobson, E., Ellis, N., Farthoual, P., Gabaldon, C., Ghibaudi, M., Gorini, B., Haas, S., Kaneda, M., Maettig, S., Messina, A., Ohm, C., Pauly, T. & Xella, Stefania, 30 Jan 2013, In: Journal of Instrumentation. 8, C01049.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. 2012
  25. Published

    A Particle Consistent with the Higgs Boson Observed with the ATLAS Detector at the Large Hadron Collider

    Aad, G., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Løvschall-Jensen, A. E., Jørgensen, M. D., Boelaert, N. M. P., Heisterkamp, S. J. F., Klinkby, E. B., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 21 Dec 2012, In: Science. 338, 6114, p. 1576-1582

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. Published

    A measurement of the ratio of the W and Z cross sections with exactly one associated jet in pp collisions at sqrt(s) = 7 TeV with ATLAS

    Aad, G., Dam, Mogens, Boelaert, N. M. P., Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Klinkby, E. B., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 28 Feb 2012, In: Physics Letters B. 708, 3-5, p. 221-240 19 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    A search for tt‾ resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7 TeV with the ATLAS detector

    Aad, G., Abalyan, T., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Mehlhase, S., Klinkby, E. B., Nilsson, B. S., Petersen, Troels Christian, Xella, Stefania & Løvschall-Jensen, A. E., 1 Sep 2012, In: Journal of High Energy Physics (Online). 2012, 9, p. 041

    Research output: Contribution to journalJournal articleResearchpeer-review

ID: 7582