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 inclusive tt- production cross section in the lepton+jets channel in pp collisions at √s=7  TeV with the ATLAS detector using support vector machines

      Aaboud, M., Aad, G., Abbott, D., Abhayasinghe, D. K., Abidi, S. H., AbouZeid, O. S. A., Abraham, N., Abramowicz, H., Abreu, H., Abulaiti, Y., Dam, Mogens, Camplani, Alessandra, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 18 Aug 2023, In: Physical Review D. 108, 3, 34 p., 032014.

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

    2. Published

      Measurement of the Sensitivity of Two-Particle Correlations in pp Collisions to the Presence of Hard Scatterings

      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, Jørn Dines, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 16 Oct 2023, In: Physical Review Letters. 131, 16, 21 p., 162301.

      Research output: Contribution to journal › Letter › Research › peer-review

    3. Published

      Performance of the reconstruction of large impact parameter tracks in the inner detector of ATLAS

      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, Peter Henrik, Hansen, Jørn Dines, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 27 Nov 2023, In: European Physical Journal C. 83, 11, 32 p., 1081.

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

    4. Published

      Search for supersymmetry in final states with missing transverse momentum and three or more b-jets in 139 fb-1 of proton–proton 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. D., Hansen, J. B., Hansen, P. H., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS Collaboration, A. C., 4 Jul 2023, In: European Physical Journal C. 83, 7, 41 p., 561.

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

    5. Published

      Measurement of the top-quark mass using a leptonic invariant mass 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., 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., 5 Jun 2023, In: Journal of High Energy Physics (Online). 2023, 06, 56 p., 019.

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

    6. 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

    7. Published

      Evidence for the charge asymmetry in pp → tt- production 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, Jørgen Beck, Hansen, Jørn Dines, Hansen, Peter Henrik, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 16 Aug 2023, In: Journal of High Energy Physics. 2023, 08, 89 p., 077.

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

    8. Published

      Search for tt-H/A → tt-tt- production in the multilepton final state in proton–proton collisions 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, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 26 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 07, 53 p., 203.

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

    9. Published

      Measurements of Zγ plus jets differential cross sections in pp collisions at √s=13 TeV with the ATLAS detector

      Aad, G., Abbott, B., Abbott, DC., Abeling, K., Abidi, S. H., Aboulhosn, J. A., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A. C., Acharya, B. S., Dam, M., Camplani, A., Hansen, P. H., Hansen, J. D., Hansen, J. B., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS, A., 10 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 07, 57 p., 072.

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

    10. Published

      Search for heavy Higgs bosons with flavour-violating couplings in multi-lepton plus b-jets final states in pp collisions at 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, Peter Henrik, Hansen, Jørn Dines, Hansen, Jørgen Beck, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 12 Dec 2023, In: Journal of High Energy Physics. 2023, 12, 68 p., 81.

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

    11. Published

      A search for heavy Higgs bosons decaying into vector bosons in same-sign two-lepton final states in pp collisions 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, Jørn Dines, Hansen, Peter Henrik, Hansen, Jørgen Beck, 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., 200.

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

    12. 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

    13. Published

      Determination of the strong coupling constant from transverse energy-energy correlations in multijet events at √s= 13 TeV with the ATLAS detector

      Aad, G., Abbott, B., Abeling, K., 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., Wiglesworth, Graig, Petersen, Troels Christian, Xella, Stefania & ATLAS Collaboration, A. C., 11 Jul 2023, In: Journal of High Energy Physics. 2023, 07, 54 p., 85.

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

    14. Published

      Differential t(t)over-tilde cross-section measurements using boosted top quarks in the all-hadronic final state with 139 fb-1 of ATLAS data

      Aad, G., Abbott, B., Abbott, DC., Abud, AA., Abeling, K., Abhayasinghe, D. 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. & 3 others, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 18 Apr 2023, In: Journal of High Energy Physics (Online). 2023, 04, 108 p., 080.

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

    15. Published

      Measurement of single top-quark production in the s-channel in proton-proton collisions 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, Jørgen Beck, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 27 Jun 2023, In: Journal of High Energy Physics (Online). 2023, 06, 47 p., 191.

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

    16. Published

      Measurements of Higgs boson production by gluon-gluon fusion and vector-boson fusion using H ? WW* ? e?μ? decays in pp collisions at √s=13 TeV with the ATLAS detector

      Aad, G., Abbott, B., Abbott, D., Abud, A., Abeling, K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Dam, Mogens, Camplani, Alessandra, Hansen, Peter Henrik, Hansen, Jørgen Beck, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 8 Aug 2023, In: Physical Review D. 108, 3, 41 p., 032005.

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

    17. 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

    18. Published

      Measurement of electroweak Z(νν¯)γjj production and limits on anomalous quartic gauge couplings in pp collisions 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., 14 Jun 2023, In: Journal of High Energy Physics (Online). 2023, 6, 48 p., 82.

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

    19. Published

      Fast b-tagging at the high-level trigger of the ATLAS experiment in LHC Run 3

      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, Peter Henrik, Hansen, Jørgen Beck, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 10 Nov 2023, In: Journal of Instrumentation. 18, 11, 38 p., P11006.

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

    20. Published

      Measurement of cross-sections for production of a Z boson in association with a flavor-inclusive or doubly b-tagged large-radius jet in proton-proton collisions at √s=13 TeV with the ATLAS experiment

      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., Dam, M., Camplani, A., Hansen, P. H., Hansen, J. D., Hansen, J. B., Ignazzi, R., Wiglesworth, G., Petersen, T. C., Xella, S. & 1 others, ATLAS Collaboration, A. C., 31 Jul 2023, In: Physical Review D. 108, 1, 32 p., 12022.

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

    21. Published

      Measurement of the properties of Higgs boson production at √s=13 TeV in the H→ γγ channel using 139 fb-1 of pp collision data with the ATLAS experiment

      Aad, G., Abbott, B., Abbott, DC., Abeling, K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abulaiti, Y., Abusleme Hoffman, A. C., Acharya, B. S., Adam, C., Dam, M., Camplani, A., Hansen, P. H., Hansen, J. D., Hansen, J. B., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS, A., 11 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 07, 100 p., 088.

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

    22. Published

      Search for an axion-like particle with forward proton scattering in association with photon pairs at ATLAS

      Aad, G., Abbott, B., Abeling, K., Abicht, N. J., 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, J. B., Hansen, P. H., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS Collaboration, A. C., 31 Jul 2023, In: Journal of High Energy Physics. 2023, 07, 38 p., 234.

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

    23. Published

      Search for pair production of third-generation leptoquarks decaying into a bottom quark and a ττ-lepton with the ATLAS detector

      Aad, G., Abbott, B., Abeling, K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A. C., Acharya, B. S., 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., 24 Nov 2023, In: European Physical Journal C. 83, 11, 35 p., 1075.

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

    24. Published

      Constraints on spin-0 dark matter mediators and invisible Higgs decays using ATLAS 13 TeV pp collision data with two top quarks and missing transverse momentum in the final state

      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 Collaboration, A. C., 13 Jun 2023, In: European Physical Journal C. 83, 6, 35 p., 503.

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

    25. Published

      Search for excited τ-leptons and leptoquarks in the final state with τ-leptons and jets 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., Abusleme Hoffman, A. C., Acharya, B. S., Dam, M., Camplani, A., Hansen, J. B., Hansen, J. D., Hansen, P. H., Petersen, T. C., Wiglesworth, G., Ignazzi, R., Xella, S. & 1 others, ATLAS Collaboration, A. C., 29 Jun 2023, In: Journal of High Energy Physics. 2023, 06, 46 p., 199.

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

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