Stefania Xella

Stefania Xella

Associate Professor, Guest Researcher

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    ORCID: 0000-0002-0988-1655

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    1. Published

      Measurement of the transverse momentum distribution of Drell-Yan lepton pairs in proton-proton collisions at root s=13TeV 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, H., Abulaiti, Y., Alonso Diaz, A., Bajic, M., Camplani, A., Dam, M., hqz214, H., Galster, G. A. G. K., Hansen, J. B., Hansen, J. D. & 8 others, Hansen, Peter Henrik, Ignazzi, R., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 16 Jul 2020, In: European Physical Journal C. 80, 7, 28 p., 616.

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

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

    3. Published

      Measurements of inclusive and differential cross-sections of combined t(t)over-bar and tW gamma production in the e mu channel at 13 TeV with the ATLAS detector

      Aad, G., Abbott, B., Abbott, D. C., Abud, A. A., Abeling, K., Abhayasinghe, DK., Abidi, S. H., Abraham, N., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Achkar, B., Adam, L., AbouZeid, O. S. A., Hansen, P. H., Petersen, T. C., Monk, J. W., Camplani, A., Stark, S. H. & 11 others, Ignazzi, R., Galster, G. A. G. K., Dam, Mogens, hqz214, H., Hansen, Jørgen Beck, Xella, Stefania, Hansen, Jørn Dines, Wiglesworth, Graig, Bajic, M., Alonso Diaz, A. & ATLAS Collaboration, A. C., 14 Jul 2020, In: Journal of High Energy Physics (Online). 2020, 09, 45 p., 049.

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

    4. Published

      Measurements of the Higgs boson inclusive and differential fiducial cross sections in the 4ℓ decay channel at √s ​ = 13 TeV

      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., Adam, L., Bajic, M., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, J. D. & 10 others, Hansen, Peter Henrik, Hansen, Jørgen Beck, Ignazzi, R., hqz214, H., Monk, J. W., Stark, S. H., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 12 Nov 2020, In: European Physical Journal C. 80, 10, 67 p., 942.

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

    5. Published

      Measurements of the production cross-section for a Z boson in association with b-jets in proton-proton 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, H., Abulaiti, Y., Acharya, B. S., Adachi, S., Alonso Diaz, A., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, J. B., Hansen, P. H. & 10 others, Hansen, Jørn Dines, hqz214, H., Ignazzi, R., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania, Bajic, M. & ATLAS Collaboration, A. C., 7 Jul 2020, In: Journal of High Energy Physics (Online). 2020, 7, 58 p., 044.

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

    6. Published

      Measurements of top-quark pair spin correlations in the eμ channel at s√=13 TeV using pp collisions in the ATLAS detector

      Aaboud, M., Aad, G., Abbott, B., Abbott, DC., Abdinov, O., Abud, AA., Abhayasinghe, DK., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., hqz214, H., Alonso Diaz, A., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, P. H., Hansen, J. B. & 9 others, Hansen, Jørn Dines, Ignazzi, R., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Bajic, M., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 19 Aug 2020, In: European Physical Journal C. 80, 8, 43 p., 754.

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

    7. Published

      Observation and measurement of forward proton scattering in association with lepton pairs produced via the photon fusion mechanism at ATLAS

      Aad, G., Abbott, B., Abbott, DC., Abud, AA., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., AbouZeid, O. S. A., Abraham, N., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Achkar, B., Adam, L., Camplani, A., Dam, M., hqz214, H., Galster, G. A. G. K., Hansen, J. D. & 9 others, 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., 23 Dec 2020, In: Physical Review Letters. 125, 26, 21 p., 261801.

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

    8. Published

      Observation of the associated production of a top quark and a Z boson 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., hqz214, H., Bajic, M., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, J. B., Hansen, J. D. & 8 others, Hansen, Peter Henrik, Ignazzi, R., Monk, J. W., Stark, S. H., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 20 Jul 2020, In: Journal of High Energy Physics (Online). 2020, 7, 46 p., 124.

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

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

    10. Published

      Performance of electron and photon triggers in ATLAS during LHC Run 2

      Aaboud, M., Aad, G., Abbott, B., 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., Hansen, J. D., Hansen, J. B., Hansen, P. H., Ignazzi, R. & 9 others, Galster, G. A. G. K., Bajic, M., Monk, J. W., hqz214, H., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 22 Jan 2020, In: European Physical Journal C. 80, 1, 41 p., 47.

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

    11. Published

      Performance of the missing transverse momentum triggers for the ATLAS detector during Run-2 data taking

      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., Galster, G. A. G. K., Hansen, P. H., Hansen, J. B., Hansen, J. D., Ignazzi, R. & 7 others, Monk, J. W., hqz214, H., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 19 Aug 2020, In: Journal of High Energy Physics (Online). 2020, 8, 53 p., 080.

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

    12. Published

      Performance of the upgraded PreProcessor of the ATLAS Level-1 Calorimeter Trigger

      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., Camplani, A., Galster, G. A. G. K., hqz214, H. & 11 others, Alonso Diaz, A., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 10 Nov 2020, In: Journal of Instrumentation. 15, 11, 49 p., P11016.

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

    13. Published

      Reconstruction and identification of boosted di-tau systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS

      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., Adam, L., Bourdarios, CA., Adamczyk, L., hqz214, H., Dam, M., Camplani, A. & 11 others, Galster, G. A. G. K., Ignazzi, R., Hansen, Jørn Dines, Hansen, Peter Henrik, Hansen, Jørgen Beck, Monk, J. W., Stark, S. H., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 30 Nov 2020, In: Journal of High Energy Physics. 2020, 11, 47 p., 163.

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

    14. Published

      Search for Heavy Higgs Bosons Decaying into Two Tau Leptons with the ATLAS Detector Using pp Collisions at root s=13 TeV

      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., hqz214, H., Hansen, J. B., Hansen, J. D., Hansen, P. H., Ignazzi, R. & 7 others, Galster, G. A. G. K., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 27 Jul 2020, In: Physical Review Letters. 125, 5, 22 p., 051801.

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

    15. Published

      Search for Heavy Resonances Decaying into a Photon and a Hadronically Decaying Higgs Boson in pp Collisions at root 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., Adam, L., Camplani, A., Dam, M., Galster, G. A. G. K., hqz214, H., Hansen, J. B. & 9 others, Hansen, Jørn Dines, Hansen, Peter Henrik, Ignazzi, R., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 18 Dec 2020, In: Physical Review Letters. 125, 25, 20 p., 251802.

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

    16. Published

      Search for Higgs Boson Decays into a Z Boson and a Light Hadronically Decaying Resonance Using 13 TeV pp Collision Data from the ATLAS Detector

      Aaboud, M., Aad, G., Abbott, B., Abbott, DC., Abdinov, O., Abud, AA., Abhayasinghe, D. K., Abidi, S. H., AbouZeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abulaiti, Y., Acharya, B. S., Adachi, S., Adam, L., Alonso Diaz, A., Camplani, A., Dam, M., Bajic, M. & 12 others, Galster, G. A. G. K., Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, Jørgen Beck, hqz214, H., Ignazzi, R., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 25 Nov 2020, In: Physical Review Letters. 125, 22, 22 p., 221802.

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

    17. Published

      Search for Higgs boson decays into two new low-mass spin-0 particles in the 4b channel with the ATLAS detector using pp collisions at √s=13 TeV

      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., Adam, L., Alonso Diaz, A., Bajic, M., Camplani, A., Dam, M., Galster, G. A. G. K. & 11 others, Hansen, Peter Henrik, Hansen, Jørgen Beck, Hansen, Jørn Dines, Ignazzi, R., hqz214, H., Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 7 Dec 2020, In: Physical Review D. 102, 40 p., 112006.

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

    18. Published

      Search for Magnetic Monopoles and Stable High-Electric-Charge Objects in 13 Tev Proton-Proton Collisions 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., Acharya, B. S., Alonso Diaz, A., Camplani, A., Dam, M., Galster, G. A. G. K., hqz214, H., Hansen, P. H. & 10 others, Hansen, Jørgen Beck, Hansen, Jørn Dines, Ignazzi, R., Monk, J. W., Stark, S. H., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania, Bajic, M. & ATLAS Collaboration, A. C., 23 Jan 2020, In: Physical Review Letters. 124, 3, 20 p., 031802.

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

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

    20. Published

      Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states 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., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, P. H., Hansen, J. D., Hansen, J. B., Ignazzi, R., Monk, J. W., Petersen, T. C., Wiglesworth, G. & 3 others, Xella, Stefania, Stark, S. H. & ATLAS Collaboration, A. C., 7 Apr 2020, In: Physical Review D. 101, 7, 32 p., 072001.

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

    21. 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

    22. 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

    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 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

    25. Published

      Search for displaced vertices of oppositely charged leptons from decays of long-lived particles 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, H., Abulaiti, Y., Alonso Diaz, A., Bajic, M., hqz214, H., Camplani, A., Dam, M., Hansen, P. H., Hansen, J. B., Hansen, J. D. & 8 others, Galster, G. A. G. K., Monk, J. W., Ignazzi, R., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 10 Feb 2020, In: Physics Letters B. 801, 21 p., 135114.

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

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