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 new light gauge bosons in Higgs boson decays to four-lepton final states in pp collisions at root s=8 TeV with the ATLAS detector at the LHC

      Aad, G., Abbott, B., 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., 3 Nov 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 92, 9, 092001.

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

    2. Published

      Search for new high-mass phenomena in the dilepton final state using 36 fb(-1) of proton-proton collision data 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., 26 Oct 2017, In: Journal of High Energy Physics. 2017, 10, 182.

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

    3. Published

      Search for neutral long-lived particles in pp collisions at root s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter

      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. B., Hansen, J. D., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS Collaboration, A. C., 1 Jun 2022, In: Journal of High Energy Physics (Online). 2022, 6, 49 p., 005.

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

    4. Published

      Search for neutral MSSM Higgs bosons decaying to tau(+)tau(-) pairs in proton-proton collisions root s=7 TeV with the ATLAS detector

      Aad...[et al.], G., Abbott, B., Abdallah, J., Dam, Mogens, Hansen, Jørn Dines, Hansen, Jørgen Beck, Hansen, John Renner, Hansen, Peter Henrik, Klinkby, E. B., Jørgensen, M. D., Petersen, Troels Christian & Xella, Stefania, 11 Nov 2011, In: Physics Letters B. 705, 3, p. 174-192

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

    5. Published

      Search for neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at s√ = 8 TeV with the ATLAS detector

      Aad, G., Abbott, B., Abdallah, J., Dam, Mogens, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, Jørgen Beck, Petersen, Troels Christian, Xella, Stefania, Jørgensen, M. D., Mehlhase, S., Monk, J. W., Løvschall-Jensen, A. E., Thomsen, L. A., Pingel, A. M., Wiglesworth, Graig, Pedersen, L. E., Alonso Diaz, A. & Galster, G. A. G. K., 21 Sep 2014, In: Journal of High Energy Physics (Online). 2014, 32 p., 056.

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

    6. Published

      Search for microscopic black holes in a like-sign dimuon final state using large track multiplicity with the ATLAS detector

      Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, John Renner, Klinkby, E. B., Heisterkamp, S. J. F., Boelaert, N. M. P., Jørgensen, M. D., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 1 Oct 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 88, 7, 072001.

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

    7. Published

      Search for microscopic black holes and string balls in final states with leptons and jets with the ATLAS detector at sqrt(s) = 8 TeV

      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., Galster, G. A. G. K., 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, 16 May 2014, In: Journal of High Energy Physics (Online). 2014, 103, 48 p., 1408.

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

    8. Published

      Search for metastable heavy charged particles with large ionization energy loss in pp collisions at root s=13 TeV using the ATLAS experiment

      Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., Aben, R., AbouZeid, O. S., Nitzan, A., Abramowicz, H., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Alonso Diaz, A., Wiglesworth, G., Pingel, A. M., Monk, J. W. & 4 others, Thomsen, L. A., Pedersen, L. E., Løvschall-Jensen, A. E. & Galster, G. A. G. K., 28 Jun 2016, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 93, 11, 112015.

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

    9. Published

      Search for metastable heavy charged particles with large ionisation energy loss in pp collisions at root s=8 TeV using the ATLAS experiment

      Aad, G., Abbott, B., 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., 3 Sep 2015, In: The European Physical Journal C: Particles and Fields. 75, 9, 407.

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

    10. Published

      Search for massive, long-lived particles using multitrack displaced vertices or displaced lepton pairs in pp collisions at root s=8 TeV 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., 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., 13 Oct 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 92, 7, 072004.

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

    11. Published

      Search for massive supersymmetric particles decaying to many jets using the ATLAS detector in pp collisions at root s=8 TeV

      Aad, A., 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., 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., 29 Jun 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 91, 11, 112016.

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

    12. Published

      Search for massive long-lived highly ionising particles with the ATLAS detector 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, 25 Apr 2011, In: Physics Letters B. 698, 5, p. 353-370 17 p.

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

    13. Published

      Search for massive colored scalars in four-jet final states in sqrt{s}=7 TeV proton-proton collisions with the ATLAS detector

      Aad..[et al.], G., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Mehlhase, S., Boelaert, N. M. P., Klinkby, E. B., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 28 Dec 2011, In: European Physical Journal C. 71, p. 1828 18 p.

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

    14. Published

      Search for massive colored scalars in four-jet final states in root s=7 TeV proton-proton collisions 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 Dec 2011, In: European Physical Journal C. 71, 12, p. 1828

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

    15. Published

      Search for magnetic monopoles and stable particles with high electric charges in 8 TeV pp collisions with the ATLAS detector

      Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., AbouZeid, O. S., Abramowicz, H., Abreu, R., Abreu, H., Acharya, B. S., Adamczyk, L., Adomeit, S., 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., 18 Mar 2016, In: Physical Review D. 93, 5, 052009.

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

    16. Published

      Search for low-scale gravity signatures in multi-jet final states with the ATLAS detector at root s=8 TeV

      Aad, G., Abbott, B., 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., 7 Jul 2015, In: Journal of High Energy Physics (Online). 2015, 7, 032.

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

    17. Published

      Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions root s=13 TeV with the ATLAS detector

      ATLAS Collaboration, A. C., 10 Aug 2019, In: Physics Letters B. 795, p. 56-75 20 p.

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

    18. Published

      Search for long-lived, weakly interacting particles that decay to displaced hadronic jets in proton-proton collisions at root s=8 TeV with the ATLAS detector

      Aad, A., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., AbouZeid, O. S., Abramowicz, H., Abreu, H., Abreu, P., 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., 21 Jul 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 92, 1, 012010.

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

    19. Published

      Search for long-lived, multi-charged particles in pp collisions at root s=7 TeV using the ATLAS detector

      Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, A. S., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Boelaert, N. M. P., Jørgensen, M. D., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 24 May 2013, In: Physics Letters B. 722, 4-5, p. 305-323

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

    20. Published

      Search for long-lived, massive particles in events with displaced vertices and multiple 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., Camplani, A., Dam, M., Hansen, J. B., Hansen, J. D., Hansen, P. H., Ignazzi, R., Petersen, T. C., Xella, S., Wiglesworth, G. & 1 others, ATLAS Collaboration, A. C., 29 Jun 2023, In: Journal of High Energy Physics. 2023, 49 p., 200.

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

    21. Published

      Search for long-lived, massive particles in events with displaced vertices and missing transverse momentum 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., Agatonovic-Jovin, T. & 20 others, Agheorghiesei, C., Aguilar-Saavedra, J. A., Ahlen, S. P., Ahmadov, F., Aielli, G., Dam, Mogens, Hansen, Jørn Dines, Hansen, Jørgen Beck, 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., 28 Mar 2018, In: Physical Review D. 97, 5, 29 p., 052012.

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

    22. Published

      Search for long-lived, massive particles in events with a displaced vertex and a muon with large impact parameter 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., Acharya, B. S., Alonso Diaz, A., hqz214, H., Camplani, A., Dam, M., Galster, G. A. G. K., Ignazzi, R., Hansen, J. D. & 7 others, Hansen, Jørgen Beck, Hansen, Peter Henrik, Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig & Xella, Stefania, 14 Aug 2020, In: Physical Review D. 102, 3, 30 p., 032006.

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

    23. Published

      Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton-proton 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, Heisterkamp, S. J. F., Jørgensen, M. D., Boelaert, N. M. P., Klinkby, E. B., Løvschall-Jensen, A. E., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 26 Feb 2013, In: Physics Letters B. 719, 4-5, p. 280-298

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

    24. Published

      Search for long-lived stopped R-hadrons decaying out of time with pp collisions using the ATLAS detecto

      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., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 3 Dec 2013, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 88, 11, p. 88 11 p., 112003.

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

    25. Published

      Search for long-lived particles produced in pp collisions at root s=13 TeV that decay into displaced hadronic jets in the ATLAS muon spectrometer

      ATLAS, A., 15 Mar 2019, In: Physical Review D. 99, 5, 36 p., 052005.

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

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