Stefania Xella

Stefania Xella

Associate Professor, Guest Researcher


  1. 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

  2. Published

    Measurements of Higgs boson production and couplings in diboson final states with the ATLAS detector at the LHC

    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, 2 Oct 2013, In: Physics Letters B. 726, 1-3, p. 88-119

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Performance of jet substructure techniques for large-R jets in proton-proton collisions at root s=7 TeV using the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, 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, 13 Sep 2013, In: Journal of High Energy Physics (Online). 2013, 9, 076.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. 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

  5. Published

    Search for Scalar Charm Quark Pair Production in pp Collisions at root s=8 TeV with the ATLAS Detector

    Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Abolins, M., AbouZeid, O. S., Abramowicz, M. A., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Pingel, A. M. & 6 others, Løvschall-Jensen, A. E., Alonso Diaz, A., Monk, J. W., Pedersen, L. E., Wiglesworth, Graig & Galster, G. A. G. K., 22 Apr 2015, In: Physical Review Letters. 114, 16, 161801.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Search for the b(b)over-bar decay of the Standard Model Higgs boson in associated (W/Z)H production with the ATLAS detector

    Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Abolins, M., AbouZeid, O. S., Abramowicz, H., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Pingel, A. M. & 6 others, Løvschall-Jensen, A. E., Alonso Diaz, A., Monk, J. W., Pedersen, L. E., Wiglesworth, Graig & Galster, G. A. G. K., 14 Jan 2015, In: Journal of High Energy Physics (Online). 2015, 1, 069.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Search for long-lived neutral particles decaying into lepton jets in proton--proton collisions at s√ = 8 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abdallah, J., Dam, Mogens, Hansen, Jørn Dines, Hansen, Jørgen Beck, Hansen, Peter Henrik, Xella, Stefania, Petersen, Troels Christian, Mehlhase, S., Monk, J. W., Thomsen, L. A., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E., Alonso Diaz, A., Pedersen, L. E., Wiglesworth, Graig & Galster, G. A. G. K., 2 Sep 2014, In: Journal of High Energy Physics (Online). 2014, 30 p., 088.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Search for direct pair production of the top squark in all-hadronic final states in proton-proton collisions at √s=8 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Abolins, M., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Galster, G. A. G. K., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E. & 4 others, Alonso Diaz, A., Monk, J. W., Pedersen, L. E. & Wiglesworth, Graig, 4 Jun 2014, In: Journal of High Energy Physics (Online). 2014, 015, 51 p., 1409.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Measurement of the underlying event in jet events from 7 TeV proton-proton collisions with the ATLAS detector

    Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Abolins, M., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Galster, G. A. G. K., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E. & 4 others, Alonso Diaz, A., Monk, J. W., Pedersen, L. E. & Wiglesworth, Graig, 2 Jun 2014, In: European Physical Journal C. 74, 29 p., 2965.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Measurement of the Higgs boson mass from the H→γγ and H→ZZ∗→4ℓ channels with the ATLAS detector using 25 fb-1 of pp collision data

    Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Abolins, M., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., Galster, G. A. G. K., Mehlhase, S., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E. & 4 others, Alonso Diaz, A., Monk, J. W., Pedersen, L. E. & Wiglesworth, Graig, 15 Jun 2014, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 90, 35 p., 052004.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Measurement of the muon reconstruction performance of the ATLAS detector using 2011 and 2012 LHC proton-proton collision data

    Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Dam, M., Hansen, J. B., Hansen, J. D., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E., Alonso Diaz, A., Monk, J. W. & 2 others, Pedersen, L. E. & Wiglesworth, Graig, 15 Jul 2014, In: European Physical Journal C. 74, 34 p., 3130.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Search for microscopic black holes and string balls in final states with leptons and jets with the ATLAS detector at sqrt(s) = 8 TeV

    Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Abolins, M., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., Galster, G. A. G. K., Mehlhase, S., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E. & 4 others, Alonso Diaz, A., Monk, J. W., Pedersen, L. E. & Wiglesworth, Graig, 16 May 2014, In: Journal of High Energy Physics (Online). 2014, 103, 48 p., 1408.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Search for supersymmetry at √s=8 TeV in final states with jets and two same-sign leptons or three leptons with the ATLAS detector

    Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Abolins, M., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E., Alonso Diaz, A. & 4 others, Monk, J. W., Pedersen, L. E., Wiglesworth, Graig & Galster, G. A. G. K., 9 Apr 2014, In: Journal of High Energy Physics (Online). 2014, 035, 50 p., 1406.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Measurement of dijet cross-sections in pp collisions at 7 TeV centre-of-mass energy using the ATLAS detector

    Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Abolins, M., AbouZeid, O. S., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Galster, G. A. G. K., Jørgensen, M. D., Thomsen, L. A., Mehlhase, S. & 6 others, Løvschall-Jensen, A. E., Alonso Diaz, A., Wiglesworth, Graig, Pingel, A. M., Pedersen, L. E. & Monk, J. W., 14 May 2014, In: Journal of High Energy Physics (Online). 2014, 59.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Measurement of Azimuthal Anisotropy of Muons from Charm and Bottom Hadrons in pp Collisions at root s=13 TeV with the ATLAS Detector

    Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, DK., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, R., Abulaiti, Y., Camplani, A., Dam, M., Alonso Diaz, A., Hansen, P. H., hqz214, H., Monk, J. W., Ignazzi, R., Galster, G. A. G. K. & 8 others, Hansen, Jørgen Beck, Hansen, Jørn Dines, Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania, Bajic, M. & ATLAS Collaboration, A. C., 26 Feb 2020, In: Physical Review Letters. 124, 8, 20 p., 082301.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Search for heavy neutral Higgs bosons produced in association with b-quarks and decaying into b-quarks at root s=13 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abbott, DC., Abdinov, O., Abud, AA., Abeling, K., Abhayasinghe, DK., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Alonso Diaz, A., hqz214, H., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, J. D., Hansen, J. B. & 9 others, Hansen, Peter Henrik, Bajic, M., Ignazzi, R., Monk, J. W., Wiglesworth, Graig, Petersen, Troels Christian, Stark, S. H., Xella, Stefania & ATLAS Collaboration, A. C., 13 Aug 2020, In: Physical Review D. 102, 3, 31 p., 032004.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Operation of the ATLAS trigger system in Run 2

    Aad, G., Abbott, B., Abbott, DC., Abud, AA., Abeling, K., Abhayasinghe, DK., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, J. D., Hansen, J. B., Hansen, P. H., Ignazzi, R. & 7 others, Monk, J. W., hqz214, H., Wiglesworth, Graig, Stark, S. H., Petersen, Troels Christian, Xella, Stefania & ATLAS Collaboration, A. C., 10 Feb 2020, In: Journal of Instrumentation. 15, 60 p., P10004.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Measurement of the tt production cross-section and lepton differential distributions in e mu dilepton events from pp collisions at root s=13 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abbott, DC., Abud, AA., Abeling, K., Abhayasinghe, DK., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Camplani, A., Dam, M., Alonso Diaz, A., Hansen, J. B., Hansen, P. H., Hansen, J. D., Galster, G. A. G. K., Petersen, T. C., Wiglesworth, G., Xella, S. & 5 others, Ignazzi, R., Monk, J. W., hqz214, H., Stark, S. H. & ATLAS Collaboration, A. C., 12 Jun 2020, In: European Physical Journal C. 80, 6, 70 p., 528.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Measurement of J/psi production in association with a W-+/- boson with pp data at 8 TeV

    Aaboud, M., Aad, G., Abbott, B., Abbott, DC., Abdinov, O., Abeloos, B., Abhayasinghe, DK., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Alonso Diaz, A., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, J. B., Hansen, P. H. & 8 others, Hansen, Jørn Dines, Ignazzi, R., Monk, J. W., Petersen, Troels Christian, hqz214, H., Stark, S. H., Wiglesworth, Graig & Xella, Stefania, 16 Jan 2020, In: Journal of High Energy Physics (Online). 2020, 1, 38 p., 95.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Measurement of the Z(-> l(+)l(-))gamma production cross-section in pp collisions at root s=13 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abbott, DC., Abud, AA., Abeling, K., Abhayasinghe, DK., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Alonso Diaz, A., Camplani, A., Dam, M., Ignazzi, R., Galster, G. A. G. K., Hansen, J. D., Hansen, J. B., Hansen, P. H. & 8 others, Bajic, M., Monk, J. W., hqz214, H., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 10 Mar 2020, In: Journal of High Energy Physics (Online). 2020, 3, 52 p., 54.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Observation of WWW Production in pp Collisions at √s = 13 TeV with the ATLAS Detector

    Aad, G., Abbott, D., Abud, A., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abulaiti, Y., Dam, Mogens, Camplani, Alessandra, Hansen, Jørn Dines, Hansen, Peter Henrik, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 4 Aug 2022, In: Physical Review Letters. 129, 20 p., 061803.

    Research output: Contribution to journalLetterResearchpeer-review

  22. Published

    Measurement of the energy asymmetry in t(t)over-barj production at 13 TeV with the ATLAS experiment and interpretation in the SMEFT framework

    Aad, G., Abbott, B., Abbott, D., Abud, A., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Dam, Mogens, Camplani, Alessandra, Hansen, Jørn Dines, Hansen, Jørgen Beck, Hansen, Peter Henrik, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 28 Apr 2022, In: European Physical Journal C. 82, 4, 36 p., 374.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Operation and performance of the ATLAS semiconductor tracker in LHC Run 2

    Aad, G., Abbott, B., Abbott, D., Abud, A., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Dam, Mogens, Camplani, Alessandra, Hansen, Jørn Dines, Hansen, Peter Henrik, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 1 Jan 2022, In: Journal of Instrumentation. 17, 1, 56 p., P01013.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    The ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2

    Aad, G., Abbott, B., Abbott, D., Abud, A., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., AbouZeid, O. S. A., Abraham, N., Abramowicz, H., Dam, Mogens, Camplani, Alessandra, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 8 Mar 2022, In: European Physical Journal C. 82, 3, 57 p., 206.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Measurements of jet observables sensitive to b-quark fragmentation in (tt)over-bar events at the LHC with the ATLAS detector

    ATLAS Collaboration, A. C., 9 Aug 2022, In: Physical Review D. 106, 33 p., 032008.

    Research output: Contribution to journalJournal articleResearchpeer-review

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