Stefania Xella

Stefania Xella

Associate Professor, Guest Researcher

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    ORCID: 0000-0002-0988-1655

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    1. Published

      Search for dark matter produced in association with a Standard Model Higgs boson decaying into b-quarks using the full Run 2 dataset from the ATLAS detector

      Aad, G., Abbott, B., Abbott, D., Abud, A., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., AbouZeid, O. S. A., Abramowicz, H., Abreu, H., Camplani, Alessandra, Dam, Mogens, Ignazzi, R., Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 26 Nov 2021, In: Journal of High Energy Physics (Online). 2021, 11, 50 p., 209.

      Research output: Contribution to journal › Journal article › Research › peer-review

    2. Published

      Search for dark matter produced in association with a dark Higgs boson decaying into W+W- in the one-lepton final state at √s=13 TeV using 139 fb-1 of pp collisions recorded with the ATLAS detector

      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, P. H., Hansen, J. B., Hansen, J. D., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS, A., 13 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 07, 49 p., 116.

      Research output: Contribution to journal › Journal article › Research › peer-review

    3. Published

      Search for dark matter produced in association with a hadronically decaying vector boson in pp collisions at root s=13 TeV with the ATLAS detector

      Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., AbouZeid, O. S., Abraham, NL., Abramowicz, H., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., 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., 10 Dec 2016, In: Physics Letters B. 763, p. 251-268

      Research output: Contribution to journal › Journal article › Research › peer-review

    4. Published

      Search for dark matter produced in association with a single top quark and an energetic W boson in √s = 13 TeV pp collisions with the ATLAS detector

      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. B., Hansen, J. D., Hansen, P. H., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS, A., 12 Jul 2023, In: European Physical Journal C. 83, 7, 38 p., 603.

      Research output: Contribution to journal › Journal article › Research › peer-review

    5. Published

      Search for dark matter produced in association with a single top quark in root s=13 TeV pp collisions with the ATLAS detector

      Aad, G., Abbott, B., Abbott, D., Abud, A., Abeling, K., Abhayasinghe, D., Abidi, S. H., AbouZeid, O. S. A., Abraham, N., Abramowicz, H., Camplani, Alessandra, Dam, Mogens, Hansen, Jørgen Beck, Hansen, Jørn Dines, Hansen, Peter Henrik, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 19 Oct 2021, In: European Physical Journal C. 81, 10, 37 p., 860.

      Research output: Contribution to journal › Journal article › Research › peer-review

    6. Published

      Search for dark matter produced in association with bottom or top quarks in root s=13 TeV pp collisions 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., Bajic, M. & 14 others, Besjes, G., Alonso Diaz, A., de Almeida Dias, F., Dam, Mogens, Hansen, Peter Henrik, Galster, G. A. G. K., Hansen, Jørn Dines, Hansen, Jørgen Beck, Wiglesworth, Graig, Thiele, F. A. J., Monk, J. W., Petersen, Troels Christian, Stark, S. H. & Xella, Stefania, 11 Jan 2018, In: European Physical Journal C. 78, 1, 36 p., 18.

      Research output: Contribution to journal › Journal article › Research › peer-review

    7. Published

      Search for dark photons from Higgs boson decays via ZH production with a photon plus missing transverse momentum signature from pp collisions at √s=13 TeV with the ATLAS detector

      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. B., Hansen, J. D., Hansen, P. H., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS, A., 17 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 07, 51 p., 133.

      Research output: Contribution to journal › Journal article › Research › peer-review

    8. Published

      Search for decays of stopped, long-lived particles from 7 TeV pp collisions with the ATLAS detector

      Aad, G., Dam, Mogens, Boelaert, N. M. P., Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Jørgensen, M. D., Heisterkamp, S. J. F., Klinkby, E. B., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian, Xella, Stefania & Løvschall-Jensen, A. E., 7 May 2012, In: European Physical Journal C. 72, 4, p. 1965

      Research output: Contribution to journal › Journal article › Research › peer-review

    9. Published

      Search for diboson resonances in hadronic final states in 139 fb(-1) of pp collisions at root s=13 TeV with the ATLAS detector

      The ATLAS collaboration, T. A. C., 12 Oct 2019, In: Journal of High Energy Physics (Online). 2019, 9, 43 p., 091.

      Research output: Contribution to journal › Journal article › Research › peer-review

    10. Published

      Search for diboson resonances with boson-tagged jets 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., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Affolder, A. A., Afik, Y. & 16 others, Agatonovic-Jovin, T., Hansen, Peter Henrik, Xella, Stefania, Monk, J. W., Dam, Mogens, Thiele, F. A. J., Petersen, Troels Christian, Hansen, Jørn Dines, Besjes, G., Stark, S. H., Galster, G. A. G. K., Alonso Diaz, A., Wiglesworth, Graig, de Almeida Dias, F., Hansen, Jørgen Beck & Bajic, M., 10 Feb 2018, In: Physics Letters B. p. 91-113 23 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    11. Published

      Search for dijet resonances in events with an isolated charged lepton using root s=13 TeV proton-proton collision data collected by the ATLAS detector

      Aad, G., Aaboud, M., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, DK., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, R., Alonso Diaz, A., Dam, M., Camplani, A., Galster, G. A. G. K., Hansen, J. D., Hansen, P. H., Hansen, J. B., hqz214, H., Ignazzi, R. & 7 others, Stark, S. H., Petersen, Troels Christian, Monk, J. W., Wiglesworth, Graig, Bajic, M., Xella, Stefania & ATLAS Collaboration, A. C., 25 Jun 2020, In: Journal of High Energy Physics (Online). 2020, 6, 42 p., 151.

      Research output: Contribution to journal › Journal article › Research › peer-review

    12. Published

      Search for diphoton events with large missing transverse energy with 36 pb(-1) of 7 TeV proton-proton collision data with the ATLAS detector

      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 Oct 2011, In: European Physical Journal C. 71, 10, p. 1744

      Research output: Contribution to journal › Journal article › Research › peer-review

    13. Published

      Search for diphoton events with large missing transverse momentum in 1 fb-1 of 7 TeV proton-proton collision data with the ATLAS detector

      Aad, G., Dam, Mogens, Boelaert, N. M. P., Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Jørgensen, M. D., Heisterkamp, S. J. F., Klinkby, E. B., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian, Løvschall-Jensen, A. E. & Xella, Stefania, 20 Apr 2012, In: Physics Letters B. 710, 4-5, p. 519-537 18 p.

      Research output: Contribution to journal › Journal article › Research › peer-review

    14. Published

      Search for direct chargino production in anomaly-mediated supersymmetry breaking models based on a disappearing-track signature in pp collisions at root s=7 TeV with the ATLAS detector

      Aad, G., Abajyan, T., Abbott, B., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, John Renner, 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 Jan 2013, In: Journal of High Energy Physics (Online). 2013, 1, 131.

      Research output: Contribution to journal › Journal article › Research › peer-review

    15. Published

      Search for direct pair production of a chargino and a neutralino decaying to the 125 GeV Higgs boson in root s=8 TeV pp collisions with the ATLAS detector

      Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., 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., Løvschall-Jensen, A. E. & 5 others, Alonso Diaz, A., Monk, J. W., Pedersen, L. E., Wiglesworth, Graig & Galster, G. A. G. K., 12 May 2015, In: The European Physical Journal C: Particles and Fields. 75, 5, UNSP 208.

      Research output: Contribution to journal › Journal article › Research › peer-review

    16. Published

      Search for direct pair production of sleptons and charginos decaying to two leptons and neutralinos with mass splittings near the W-boson mass in √s=13 TeV pp collisions with the ATLAS detector

      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., Achkar, B., Dam, M., Camplani, A., Hansen, P. H., Hansen, J. D., Hansen, J. B., Ignazzi, R., Petersen, T. C., Wiglesworth, G. & 2 others, Xella, Stefania & ATLAS, A., 6 Jun 2023, In: Journal of High Energy Physics (Online). 2023, 6, 59 p., 31.

      Research output: Contribution to journal › Journal article › Research › peer-review

    17. 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 journal › Journal article › Research › peer-review

    18. Published

      Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in root s=7 TeV pp collisions 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, 8 Jan 2013, In: Physics Letters B. 718, 3, p. 841-859

      Research output: Contribution to journal › Journal article › Research › peer-review

    19. Published

      Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s= 8TeV pp 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., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Galster, G. A. G. K., Pingel, A. M., Løvschall-Jensen, A. E. & 4 others, Alonso Diaz, A., Monk, J. W., Pedersen, L. E. & Wiglesworth, Graig, 27 Feb 2014, In: Journal of High Energy Physics (Online). 2014, 169, 1404.

      Research output: Contribution to journal › Journal article › Research › peer-review

    20. Published

      Search for direct production of charginos, neutralinos and sleptons in final states with two leptons and missing transverse momentum in pp collisions at sqrt(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, H., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Galster, G. A. G. K., Alonso Diaz, A., Wiglesworth, G., Petersen, T. C., Hansen, P. H., Thomsen, L. A. & 6 others, Mehlhase, S., Jørgensen, M. D., Løvschall-Jensen, A. E., Monk, J. W., Pedersen, L. E. & Pingel, A. M., 16 May 2014, In: Journal of High Energy Physics (Online). 2014, 071.

      Research output: Contribution to journal › Journal article › Research › peer-review

    21. Published

      Search for direct production of electroweakinos in final states with missing transverse momentum and a Higgs boson decaying into photons in pp collisions at ​√s= 13 TeV with the ATLAS detector

      Aad, G., Abbott, B., Abbott, DC., Abud, AA., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Achkar, B., Adachi, S., Adam, L., Bajic, M., Dam, M., Camplani, A., Galster, G. A. G. K. & 12 others, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Ignazzi, R., Monk, J. W., Alonso Diaz, A., Petersen, Troels Christian, hqz214, H., Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 1 Oct 2020, In: Journal of High Energy Physics (Online). 2020, 10, 46 p., 005.

      Research output: Contribution to journal › Journal article › Research › peer-review

    22. Published

      Search for direct production of electroweakinos in final states with one lepton, jets and missing transverse momentum in pp collisions 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., Acharya, B. S., Dam, Mogens, Camplani, Alessandra, Hansen, Peter Henrik, Hansen, Jørgen Beck, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 27 Dec 2023, In: Journal of High Energy Physics. 2023, 12, 63 p., 167.

      Research output: Contribution to journal › Journal article › Research › peer-review

    23. Published

      Search for direct production of electroweakinos in final states with one lepton, missing transverse momentum and a Higgs boson decaying into two b-jets 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., Abulaiti, Y., Abreu, H., Alonso Diaz, A., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, J. B., Hansen, P. H., Hansen, J. D., Bajic, M. & 8 others, Ignazzi, R., Monk, J. W., hqz214, H., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 1 Aug 2020, In: European Physical Journal C. 80, 8, 29 p., 691.

      Research output: Contribution to journal › Journal article › Research › peer-review

    24. Published

      Search for direct production of winos and higgsinos in events with two same-charge leptons or three leptons in pp collision data at √s=13 TeV with the ATLAS detector

      Aad, G., Abbott, B., Abbott, D., Abeling, K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A. C., Dam, Mogens, Camplani, Alessandra, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 22 Nov 2023, In: Journal of High Energy Physics (Online). 2023, 11, 70 p., 150.

      Research output: Contribution to journal › Journal article › Research › peer-review

    25. Published

      Search for direct stau production in events with two hadronic tau-leptons in root s=13 TeV pp collisions 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., hqz214, H., Dam, M., Galster, G. A. G. K., Hansen, P. H., Hansen, J. D., Hansen, J. B. & 8 others, Ignazzi, R., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania, Bajic, M. & ATLAS Collaboration, A. C., 28 Feb 2020, In: Physical Review D. 101, 3, 30 p., 032009.

      Research output: Contribution to journal › Journal article › Research › peer-review

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