Stefania Xella

Stefania Xella

Associate Professor, Guest Researcher


  1. 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

  2. Published

    Search for new phenomena in multi-body invariant masses in events with at least one isolated lepton and two jets using √s=13 TeV proton-proton collision data collected by 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., 26 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 07, 77 p., 202.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. 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 journalJournal articleResearchpeer-review

  4. Published

    Search for leptonic charge asymmetry in tt¯W production in final states with three leptons at √s= 13 TeV

    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, A., 5 Jul 2023, In: Journal of High Energy Physics. 2023, 07, 54 p., 033.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Search for heavy resonances decaying into a Z or W boson and a Higgs boson in final states with leptons and b-jets in 139 fb-1 of 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., Achkar, B., 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., 5 Jun 2023, In: Journal of High Energy Physics (Online). 2023, 6, 68 p., 16.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    ATLAS flavour-tagging algorithms for the LHC Run 2 pp collision dataset

    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., Adam Bourdarios, C., Adamczyk, L., Adamek, L., Dam, M., Camplani, A., Hansen, J. D., Hansen, P. H., Hansen, J. B., Ignazzi, R. & 4 others, Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 31 Jul 2023, In: European Physical Journal C. 83, 37 p., 681.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Measurement of the nuclear modification factor of b-jets in 5.02 TeV Pb+Pb collisions with the ATLAS detector

    Aad, G., Abbott, B., Abbott, D., Abeling, K., Abidi, S. H., Aboulhosn, J. 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., 25 May 2023, In: European Physical Journal C. 83, 32 p., 438.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Search for single vector-like B quark production and decay via B → bH(b(b)over-bar) in pp collisions at √s=13 TeV with the ATLAS detector

    Aad, G., Abbott, B., Abbott, D., Abud, A., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., 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., 23 Nov 2023, In: Journal of High Energy Physics (Online). 2023, 11, 52 p., 168.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Combination of inclusive top-quark pair production cross-section measurements using ATLAS and CMS data at √s=7 and 8 TeV

    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, A., 27 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 7, 64 p., 213.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Pursuit of paired dijet resonances in the Run 2 dataset with ATLAS

    Aad, G., Abbott, B., Abeling, K., Abicht, N. J., Abidi, S. H., Aboulhosn, J. 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., 13 Dec 2023, In: Physical Review D. 108, 11, 30 p., 112005.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Electron and photon energy calibration with the ATLAS detector using LHC Run 2 data

    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, Hansen, Peter Henrik, Camplani, Alessandra, Hansen, Jørn Dines, Hansen, Jørgen Beck, Ignazzi, R., Wiglesworth, Graig, Petersen, Troels Christian, Xella, Stefania & ATLAS Collaboration, A. C., 5 Feb 2023, In: Journal of Instrumentation. 2024, 19, 58 p., P02009.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Measurement of the B0s → μμ effective lifetime 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, Jørgen Beck, Hansen, Peter Henrik, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 28 Sep 2023, In: Journal of High Energy Physics (Online). 2023, 09, 32 p., 199.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Measurement of exclusive pion pair production in proton-proton collisions at √s=7 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, Hansen, Jørn Dines, Camplani, Alessandra, Hansen, Jørgen Beck, Hansen, Peter Henrik, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 2023, In: European Physical Journal C. 83, 7, 28 p., 627.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Cross-section measurements for the production of a Z boson in association with high-transverse-momentum jets in 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., 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., 14 Jun 2023, In: Journal of High Energy Physics (Online). 2023, 6, 53 p., 80.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Search for periodic signals in the dielectron and diphoton invariant mass spectra using 139 fb-1 of 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., Dam, Mogens, Camplani, Alessandra, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 13 Oct 2023, In: Journal of High Energy Physics. 2023, 10, 51 p., 079.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Comparison of inclusive and photon-tagged jet suppression in 5.02 TeV Pb+Pb collisions with 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, A., 10 Oct 2023, In: Physics Letters B. 846, 27 p., 138154.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Test of CP Invariance in Higgs Boson Vector-Boson-Fusion Production Using the H → γγ Channel 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., 7 Aug 2023, In: Physical Review Letters. 131, 6, 23 p., 061802.

    Research output: Contribution to journalLetterResearchpeer-review

  18. 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

  19. Published

    Search for displaced photons produced in exotic decays of the Higgs boson using 13 TeV pp collisions with the ATLAS detector

    Aad, G., Abbott, B., Abbott, D., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., Abusleme Hoffman, A. C., Acharya, B. S., Dam, Mogens, Camplani, Alessandra, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 21 Aug 2023, In: Physical Review D. 108, 3, 33 p., 032016.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Searches for new phenomena in events with two leptons, jets, and missing transverse momentum in 139 fb-1 of √s=13 TeV pp collisions with the ATLAS detector

    Aad, G., Abbott, B., Abbott, DC., Abud, AA., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., Aboulhorma, A., Abramowicz, H., Abreu, H., Abulaiti, Y., 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 Collaboration, A. C., 19 Jun 2023, In: European Physical Journal C. 83, 6, 52 p., 515.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Search for flavour-changing neutral tqH interactions with H → γγ in pp collisions at √s=13 TeV using the ATLAS detector

    Aad, G., 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 Collaboration, A. C., 28 Dec 2023, In: Journal of High Energy Physics. 2023, 12, 53 p., 195.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    Search for pairs of muons with small displacements 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, P. H., Hansen, J. D., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS, A., 10 Oct 2023, In: Physics Letters B. 846, 22 p., 138172.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Search for Dark Photons in Rare Z Boson Decays 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, A., 18 Dec 2023, In: Physical Review Letters. 131, 25, 23 p., 251801.

    Research output: Contribution to journalLetterResearchpeer-review

  24. Published

    Inclusive and differential cross-sections for dilepton t(t)over-bar production measured in √s=13 TeV pp collisions with the ATLAS detector

    Aad, G., Abbott, B., Abbott, DC., Abeling, K., Abidi, S. H., Aboulhosn, J. A., Abramowicz, H., Abulaiti, Y., Abreu, H., 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., 17 Jul 2023, In: Journal of High Energy Physics (Online). 2023, 07, 78 p., 141.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Search for leptoquarks decaying into the bt final state 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, Petersen, Troels Christian, Ignazzi, R., Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 2 Oct 2023, In: Journal of High Energy Physics (Online). 2023, 10, 55 p., 001.

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. Published

    Search for the charged-lepton-flavor-violating decay Z→eμ 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., 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. B., Hansen, J. D., Ignazzi, R. & 4 others, Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 25 Aug 2023, In: Physical Review D. 108, 3, 22 p., 032015.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    Exclusive dielectron production in ultraperipheral Pb+Pb collisions at √sNN = 5.02 TeV with ATLAS

    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, Jørgen Beck, Hansen, Peter Henrik, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS, A., 27 Jun 2023, In: Journal of High Energy Physics (Online). 2023, 06, 42 p., 182.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Search for dark matter produced in association with a Higgs boson decaying to tau leptons at √s = 13 TeV with the ATLAS detector

    Aad, G., Aakvaag, E., Abbott, B., 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, A., 26 Sep 2023, In: Journal of High Energy Physics (Online). 2023, 09, 53 p., 189.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    Intel Stratix 10 FPGA design for track reconstruction for the ATLAS experiment at the HL-LHC

    Camplani, A., Dittmeier, S., Annovi, A., Axiotis, K., Beccherle, R., Biesuz, N., Brenner, R., Débieux, S., Ellert, M., Francavilla, P., Giannetti, P., Kordas, K., Mårtensson, M., Mastrandrea, P., Noulas, C., Oechsle, J., Piendibene, M., Poggi, R., Schöning, A., Sfyrla, A. & 5 others, Sotiropoulou, C. L., Steentoft, J., Tsiakiris, T., Xella, Stefania & Zinßer, J., 1 Jun 2023, In: Journal of Instrumentation. 18, 06, 23 p., P06029.

    Research output: Contribution to journalJournal articleResearchpeer-review

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