Stefania Xella

Stefania Xella

Associate Professor, Guest Researcher


  1. Published

    Search for an additional, heavy Higgs boson in the decay channel at in collision data with the ATLAS detector

    Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., AbouZeid, O. S., Abramowicz, H., Abreu, H., Abreu, R., Acharya, B. S., Adamczyk, L., Adams, D. L., Adye, T., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C. & 8 others, Thomsen, L. A., Pingel, A. M., Løvschall-Jensen, A. E., Alonso Diaz, A., Monk, J. W., Pedersen, L. E., Wiglesworth, Graig & Galster, G. A. G. K., 25 Jan 2016, In: European Physical Journal C. 76, 1, 45.

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36 fb(-1) of pp collisions at root s=13 TeV with the ATLAS detector

    Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., Abouzeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Affolder, A. A., Hansen, P. H. & 14 others, Wiglesworth, Graig, Galster, G. A. G. K., de Almeida Dias, F., Dam, Mogens, Thiele, F. A. J., Monk, J. W., Bajic, M., Hansen, Jørgen Beck, Petersen, Troels Christian, Stark, S. H., Alonso Diaz, A., Hansen, Jørn Dines, Besjes, G. & Xella, Stefania, 12 Jan 2018, In: Journal of High Energy Physics. 2018, 1, 54 p., 055.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Search for additional heavy neutral Higgs and gauge bosons in the ditau final state produced in 36

    Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., Abouzeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Affolder, A. A., Hansen, P. H. & 14 others, Wiglesworth, Graig, Galster, G. A. G. K., de Almeida Dias, F., Dam, Mogens, Thiele, F. A. J., Monk, J. W., Bajic, M., Hansen, Jørgen Beck, Petersen, Troels Christian, Stark, S. H., Alonso Diaz, A., Hansen, Jørn Dines, Besjes, G. & Xella, Stefania, 13 Jan 2018, In: European Physical Journal C. 78, 1, 34 p., 24.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Search for a standard model Higgs boson in the H -> ZZ -> l(+)l(-) nu(nu)over-bar decay channel using 4.7 fb(-1) of root s=7 TeV data with the ATLAS detector

    Aad, G., Dam, Mogens, 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, Boelaert, N. M. P., Xella, Stefania & Løvschall-Jensen, A. E., 22 Nov 2012, In: Physics Letters B. 717, 1-3, p. 29-48 19 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Search for a scalar partner of the top quark in the jets plus missing transverse momentum final state at root s=13 TeV with the ATLAS detector

    Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., AbouZeid, O. S., Abraham, NL., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J. P., Adersberger, M., Adye, T., Affolder, A. A., Dam, M. & 16 others, Hansen, Jørn Dines, Hansen, Jørgen Beck, Xella, Stefania, Hansen, Peter Henrik, Petersen, Troels Christian, Løvschall-Jensen, A. E., Alonso Diaz, A., Monk, J. W., Pedersen, L. E., Wiglesworth, Graig, Galster, G. A. G. K., Stark, S. H., Besjes, G., Thiele, F. A. J., de Almeida Dias, F. & Bajic, M., 15 Dec 2017, In: Journal of High Energy Physics. 2017, 12, 085.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Search for a scalar partner of the top quark in the all-hadronic t(t)over-bar plus missing transverse momentum final state at root s=13 TeV with the ATLAS detector

    Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, D. K., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Bajic, M., hqz214, H., Alonso Diaz, A., de Almeida Dias, F., Camplani, A., Dam, M., Galster, G. A. G. K. & 10 others, Hansen, Jørn Dines, Hansen, Peter Henrik, Hansen, Jørgen Beck, Ignazzi, R., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 13 Aug 2020, In: European Physical Journal C. 80, 8, 44 p., 737.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Search for a new scalar resonance in flavour-changing neutral-current top-quark decays t → qX (q = u, c), with X → b(b)over-bar, in proton-proton collisions at √s=13 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abbott, D. C., Abeling, K., Abidi, S. H., Aboulhosn, J. A., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A. C., Dam, Mogens, Camplani, Alessandra, Hansen, Jørgen Beck, Hansen, Jørn Dines, Hansen, Peter Henrik, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 26 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 07, 51 p., 199.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Search for a new resonance decaying to a W or Z boson and a Higgs boson in the ll/lv/vv plus b(b)over-bar final states with the ATLAS detectorv

    Aad, G., Abbott, T., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., AbouZeid, O. S., Abramowicz, H., Abreu, H., Abreu, R., 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., 16 Jun 2015, In: The European Physical Journal C: Particles and Fields. 75, 6, 263.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Search for a new pseudoscalar decaying into a pair of muons in events with a top-quark pair at√s=13 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abeling, K., Abicht, N. J., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A. C., Dam, Mogens, Camplani, Alessandra, Hansen, Jørn Dines, Hansen, Peter Henrik, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 28 Nov 2023, In: Physical Review D. 108, 9, 26 p., 092007.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Search for a new heavy scalar particle decaying into a Higgs boson and a new scalar singlet in final states with one or two light leptons and a pair of τ-leptons with the ATLAS detector

    Aad, G., Abbott, B., Abeling, K., Abicht, N. J., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Dam, Mogens, Camplani, Alessandra, Hansen, Jørn Dines, Hansen, Peter Henrik, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 30 Oct 2023, In: Journal of High Energy Physics (Online). 2023, 10, 46 p., 009.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Search for a new heavy gauge-boson resonance decaying into a lepton and missing transverse momentum in 36 fb(-1) of pp collisions root s=13 TeV with the ATLAS experiment

    Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abouzeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Affolder, A. A., Afik, Y., Agheorghiesei, C. & 19 others, Aguilar-Saavedra, J. A., Ahlen, S. P., Hansen, Jørn Dines, Hansen, Jørgen Beck, Dam, Mogens, Xella, Stefania, Hansen, Peter Henrik, Petersen, Troels Christian, Alonso Diaz, A., Monk, J. W., Wiglesworth, Graig, Galster, G. A. G. K., Stark, S. H., Besjes, G., Bajic, M., Thiele, F. A. J., de Almeida Dias, F., Ahmadov, F. & Aielli, G., 22 May 2018, In: European Physical Journal C. 78, 5, 401.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Search for a new Z′ gauge boson in 4μ events with the ATLAS experiment

    Aad, G., Abbott, B., Abbott, DC., Abeling, K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A. C., Acharya, B. S., Dam, M., Camplani, A., Hansen, J. D., Hansen, P. H., Hansen, J. B., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS Collaboration, A. C., 12 Jul 2023, In: Journal of High Energy Physics. 2023, 07, 42 p., 90.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Search for a light charged Higgs boson in the decay channel H+ -> c(s)over-bar in t(t)over-bar events using 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, 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, 1 Jun 2013, In: European Physical Journal C. 73, 6, 2465.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Search for a light charged Higgs boson in t → H±b decays, with H± → cb, in the lepton+jets final state in proton-proton collisions at √s= 13 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abbott, DC., Abed Abud, A., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A. C., Dam, M., Ignazzi, R., Hansen, J. D., Hansen, J. B., Hansen, P. H., Camplani, A., Petersen, T. C., Wiglesworth, G. & 2 others, Xella, Stefania & ATLAS, A., 1 Sep 2023, In: Journal of High Energy Physics (Online). 2023, 09, 52 p., 004.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Search for a high-mass Higgs boson decaying to a W boson pair in pp collisions at root s=8TeV with the ATLAS detector

    Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., AbouZeid, O. S., Abramowicz, H., Abreu, H., Abreu, R., Acharya, B. S., Adamczyk, L., Adams, D. L., Adye, T., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C. & 8 others, Thomsen, L. A., Pingel, A. M., Løvschall-Jensen, A. E., Alonso Diaz, A., Monk, J. W., Pedersen, L. E., Wiglesworth, Graig & Galster, G. A. G. K., 7 Jan 2016, In: Journal of High Energy Physics (Online). 2016, 1, 032.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Search for a heavy top-quark partner in final states with two leptons with the ATLAS detector at the LHC

    Aad, G., Abajyan, T., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Jørgensen, M. D., Boelaert, N. M. P., Heisterkamp, S. J. F., Løvschall-Jensen, A. E., Klinkby, E. B., Nilsson, B. S., Mehlhase, S., Petersen, Troels Christian & Xella, Stefania, 1 Nov 2012, In: Journal of High Energy Physics (Online). 2012, 11, p. 094

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in vs = 7 TeV pp collisions at the LHC

    Aad...[et al.], G., Dam, Mogens, Hansen, John Renner, Hansen, Jørgen Beck, Hansen, Jørn Dines, Hansen, Peter Henrik, Jørgensen, M. D., Klinkby, E. B., Petersen, Troels Christian, Xella, Stefania, Boelaert, N. M. P. & Kittelmann, T. H., 22 Jun 2011, In: Physical Review Letters. 106, 25, p. 251801 18 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Search for a heavy neutral particle decaying into an electron and a muon using 1 fb(-1) of ATLAS data

    Aad...[et al.], G., Abbott, B., Abdallah, J., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Jørn Dines, Hansen, John Renner, Hansen, Peter Henrik, Klinkby, E. B., Jørgensen, M. D., Petersen, Troels Christian, Xella, Stefania, Boelaert, N. M. P. & Kittelmann, T. H., 1 Dec 2011, In: European Physical Journal C. 71, 12, p. 1809 17 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Search for a heavy narrow resonance decaying to e mu, e tau, or mu tau with the ATLAS detector in root s=7 TeV pp collisions 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., Nilsson, B. S., Mehlhase, S., Petersen, Troels Christian & Xella, Stefania, 10 Jun 2013, In: Physics Letters B. 723, 1-3, p. 15-32

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Search for a heavy gauge boson decaying to a charged lepton and a neutrino in 1 fb(-1) of pp collisions at root s=7 TeV using the ATLAS detector ATLAS Collaboration

    Aad...[et al.], G., Abbott, B., Abdallah, J., Dam, Mogens, Hansen, Jørgen Beck, Hansen, John Renner, Hansen, Jørn Dines, Hansen, Peter Henrik, Jørgensen, M. D., Klinkby, E. B., Petersen, Troels Christian, Xella, Stefania, Boelaert, N. M. P. & Kittelmann, T. H., 3 Nov 2011, In: Physics Letters B. 705, 1-2, p. 28-46

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Search for a heavy charged boson in events with a charged lepton and missing transverse momentum from pp collisions at root s=13 TeV with the ATLAS detector

    ATLAS, A., 23 Sep 2019, In: Physical Review D. 100, 5, 29 p., 052013.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    Search for a heavy Standard Model Higgs boson in the channel H->ZZ->llqq using the ATLAS detector

    Aad, G., 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., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 16 Jan 2012, In: Physics Letters B. 707, 1, p. 27-45 18 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the llbb final state in pp collisions at root s=13 TeV with the ATLAS detector

    Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., Abouzeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Affolder, A. A., Afik, Y., Alonso Diaz, A. & 14 others, Bajic, M., Besjes, G., Dam, Mogens, de Almeida Dias, F., Hansen, Jørgen Beck, Hansen, Jørn Dines, Hansen, Peter Henrik, Monk, J. W., Galster, G. A. G. K., Thiele, F. A. J., Stark, S. H., Petersen, Troels Christian, Wiglesworth, Graig & Xella, Stefania, 10 Aug 2018, In: Physics Letters B. 783, p. 392-414 23 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Search for a heavy Higgs boson decaying into a Z boson and another heavy Higgs boson in the llbb and llWW final states in pp collisions at root s=13 TeV with the ATLAS detector

    ATLAS Collaboration, A. C., 7 May 2021, In: European Physical Journal C. 81, 5, 36 p., 396.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector

    Aad, G., Abbott, B., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Klinkby, E. B., Boelaert, N. M. P., Nilsson, B. S., Mehlhase, S., Petersen, Troels Christian, Xella, Stefania & Løvschall-Jensen, A. E., 1 Sep 2012, In: European Physical Journal C. 72, 9, p. 2157

    Research output: Contribution to journalJournal articleResearchpeer-review

ID: 7582