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 Pair Production of a New b ' Quark that Decays into a Z Boson and a Bottom Quark with the ATLAS Detector

      Aad, G., Abbott, B., Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, John Renner, Hansen, Jørn Dines, Heisterkamp, S. J. F., Jørgensen, M. D., Klinkby, E. B., Boelaert, N. M. P., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian, Løvschall-Jensen, A. E. & Xella, Stefania, 16 Aug 2012, In: Physical Review Letters. 109, 7, p. 071801

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

    2. Published

      Search for Pair Production of a Heavy Up-Type Quark Decaying to a W Boson and a b Quark in the lepton+jets Channel with the ATLAS Detector

      Aad, G., Dam, Mogens, Boelaert, N. M. P., Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, John Renner, Heisterkamp, S. J. F., Jørgensen, M. D., Klinkby, E. B., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian, Løvschall-Jensen, A. E. & Xella, Stefania, 26 Jun 2012, In: Physical Review Letters. 108, 26, p. 261802 18 p.

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

    3. Published

      Search for New Physics in the Dijet Mass Distribution using 1 fb-1 of pp Collision Data at sqrt(s) = 7 TeV collected by the ATLAS Detector

      Aad, G., 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., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 14 Feb 2012, In: Physics Letters B. 708, 1-2, p. 37-54 17 p.

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

    4. Published

      Search for New Phenomena in ttbar Events with Large Missing Transverse Momentum in Proton-Proton Collisions at sqrt(s) = 7 TeV with the ATLAS Detector

      Aad, G., 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., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian & Xella, Stefania, 26 Jan 2012, In: Physical Review Letters. 108, 4, p. 041805 18 p.

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

    5. Published

      Search for New Phenomena in Two-Body Invariant Mass Distributions Using Unsupervised Machine Learning for Anomaly Detection at p s=13 TeV ffi 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., 20 Feb 2024, In: Physical Review Letters. 132, 8, 23 p., 081801.

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

    6. Published

      Search for New Phenomena in Final States with Two Leptons and One or No b-Tagged Jets at root S=13 TeV Using the ATLAS Detector

      Aad, G., Abbott, B., Abbott, D., Abud, A., Abeling, K., Abhayasinghe, D. K., Abidi, S. H., Abramowicz, H., Abreu, H., Camplani, Alessandra, Dam, Mogens, Hansen, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 1 Oct 2021, In: Physical Review Letters. 127, 14, 23 p., 141801.

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

    7. Published

      Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at root s=8 TeV Measured 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., 4 Sep 2015, In: Physical Review Letters. 114, 22, 221802.

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

    8. Published

      Search for Minimal Supersymmetric Standard Model Higgs bosons H/A and for a Z ' boson in the tau tau final state produced 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., Abramowicz, H., Abraham, NL., Abreu, H., Abreu, R., Dam, M., Hansen, J. D., Hansen, J. B., Xella, S., Hansen, P. H., Petersen, T. C., Thomsen, L. A., 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., 27 Oct 2016, In: European Physical Journal C. 76, 11, 585.

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

    9. Published

      Search for Majorana neutrinos in same-sign W W scattering events from pp collisions at √s = 13 TeV

      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, P. H., Hansen, J. D., Hansen, J. B., Ignazzi, R., Petersen, T. C., Wiglesworth, G., Xella, S. & 1 others, ATLAS, A., 15 Sep 2023, In: European Physical Journal C. 83, 9, 26 p., 824.

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

    10. Published

      Search for Magnetic Monopoles in root s=7 TeV pp Collisions with the ATLAS Detector

      Aad, G., 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., Mehlhase, S., Nilsson, B. S., Petersen, Troels Christian, Xella, Stefania & Løvschall-Jensen, A. E., 27 Dec 2012, In: Physical Review Letters. 109, 26, p. 261803

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

    11. 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

    12. Published

      Search for Low-Mass Dijet Resonances Using Trigger-Level Jets with the ATLAS Detector in pp Collisions at √s=13  TeV

      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., Abu Al-Soud, W., Acharya, B. S., Adachi, S., Adam, L., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T. & 22 others, Affolder, A. A., Afik, Y., Agheorghiesei, C., Aguilar-Saavedra, J. A., Ahmadov, F., Aielli, G., Alonso Diaz, A., Besjes, G., Bajic, M., Hansen, Jørn Dines, Dam, Mogens, Galster, G. A. G. K., Hansen, Jørgen Beck, Monk, J. W., de Almeida Dias, F., hqz214, H., Hansen, Peter Henrik, Petersen, Troels Christian, Stark, S. H., Xella, Stefania, Wiglesworth, Graig & The ATLAS collaboration, T. A. C., 22 Aug 2018, In: Physical Review Letters. 121, 20 p., 081801.

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

    13. Published

      Search for Lepton-Flavor Violation in Z-Boson Decays with tau Leptons 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, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 28 Dec 2021, In: Physical Review Letters. 127, 27, 20 p., 271801.

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

    14. Published

      Search for Invisible Decays of a Higgs Boson Produced in Association with a Z Boson in ATLAS

      Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S., Abdinov, O., Aben, R., Abi, B., Dam, M., Hansen, J. B., Hansen, J. D., Xella, S., Galster, G. A. G. K., Hansen, P. H., Petersen, T. C., Thomsen, L. A., Mehlhase, S., Jørgensen, M. D., Pingel, A. M., Løvschall-Jensen, A. E., Alonso Diaz, A. & 3 others, Monk, J. W., Pedersen, L. E. & Wiglesworth, Graig, 13 Feb 2014, In: Physical Review Letters. 112, 19 p., 201802.

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

    15. Published

      Search for H→γγ produced in association with top quarks and constraints on the Yukawa coupling between the top quark and the Higgs boson using data taken at 7 TeV and 8 TeV with the ATLAS detector

      Aad, G., Abbott, B., Abdallah, J., Abdel Khalek, S. A., 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., 5 Jan 2015, In: Physics Letters B. 740, p. 222-242 21 p.

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

    16. Published

      Search for High-Mass Resonances Decaying to tau nu 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., Abulaiti, Y., Abreu, H., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J. P., Adersberger, M., Adye, T., Affolder, A. A. & 18 others, Afik, Y., Agheorghiesei, C., Aguilar-Saavedra, J. A., Ahlen, S. P., Dam, Mogens, Hansen, Jørn Dines, Hansen, Jørgen Beck, Hansen, Peter Henrik, Petersen, Troels Christian, Xella, Stefania, Alonso Diaz, A., Wiglesworth, Graig, Monk, J. W., Thiele, F. A. J., Stark, S. H., Bajic, M., de Almeida Dias, F. & Besjes, G., 20 Apr 2018, In: Physical Review Letters. 120, 16, 161802.

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

    17. Published

      Search for Higgs bosons produced via vector-boson fusion and decaying into bottom quark pairs in root s=13 TeV pp collisions 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., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T., Affolder, A. A. & 16 others, Afik, Y., Bajic, M., Besjes, G., Dam, Mogens, Alonso Diaz, A., Hansen, Peter Henrik, Hansen, Jørn Dines, Hansen, Jørgen Beck, Galster, G. A. G. K., de Almeida Dias, F., Monk, J. W., Petersen, Troels Christian, Thiele, F. A. J., Stark, S. H., Wiglesworth, Graig & Xella, Stefania, 10 Sep 2018, In: Physical Review D. 98, 5, 29 p., 052003.

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

    18. Published

      Search for Higgs bosons decaying to aa in the mu mu tau tau final state in pp collisions at root s=8 TeV with 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., 9 Sep 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 92, 5, 052002.

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

    19. Published

      Search for Higgs bosons decaying into new spin-0 or spin-1 particles in four-lepton final states with the ATLAS detector with 139 fb(-1) of pp collision data at root s=13 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, Jørgen Beck, Hansen, Peter Henrik, Hansen, Jørn Dines, Ignazzi, R., Petersen, Troels Christian, Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 8 Mar 2022, In: Journal of High Energy Physics (Online). 2022, 3, 64 p., 041.

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

    20. Published

      Search for Higgs boson production in association with a high-energy photon via vector-boson fusion with decay into bottom quark pairs 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., Alonso Diaz, A., Bajic, M., Camplani, A., Dam, M., Galster, G. A. G. K., Hansen, J. D., Hansen, P. H., Hansen, J. B., hqz214, H., Monk, J. W. & 7 others, Ignazzi, R., de Almeida Dias, F., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & ATLAS Collaboration, A. C., 29 Mar 2021, In: Journal of High Energy Physics (Online). 2021, 3, 37 p., 268.

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

    21. Published

      Search for Higgs boson pair production in the..WW * channel using pp collision data recorded at v 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., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T., Affolder, A. A. & 18 others, Afik, Y., Agheorghiesei, C., Aguilar-Saavedra, J. A., Bajic, M., Besjes, G., de Almeida Dias, F., Alonso Diaz, A., Hansen, Peter Henrik, Hansen, Jørgen Beck, Galster, G. A. G. K., Hansen, Jørn Dines, Dam, Mogens, Monk, J. W., Stark, S. H., Thiele, F. A. J., Xella, Stefania, Petersen, Troels Christian & Wiglesworth, Graig, 11 Dec 2018, In: European Physical Journal C. 78, 12, 26 p., 1007.

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

    22. Published

      Search for Higgs boson pair production in the two bottom quarks plus two photons final state in pp collisions at root 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, Jørgen Beck, Hansen, Jørn Dines, Ignazzi, R., Wiglesworth, Graig, Petersen, Troels Christian, Xella, Stefania & ATLAS Collaboration, A. C., 6 Sep 2022, In: Physical Review D. 106, 5, 35 p., 052001.

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

    23. Published

      Search for Higgs boson pair production in the gamma gamma b(b)over-bar final state with 13TeV pp collision data collected by the ATLAS experiment

      Aaboud, M., Aad, G., 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., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T., Affolder, A. A., Afik, Y. & 19 others, Agheorghiesei, C., Aguilar-Saavedra, J. A., Ahmadov, F., Aielli, G., Alonso Diaz, A., Bajic, M., de Almeida Dias, F., Besjes, G., Dam, Mogens, Galster, G. A. G. K., Hansen, Jørn Dines, Hansen, Peter Henrik, Hansen, Jørgen Beck, Monk, J. W., Petersen, Troels Christian, Thiele, F. A. J., Stark, S. H., Wiglesworth, Graig & Xella, Stefania, 1 Nov 2018, In: Journal of High Energy Physics. 2018, 11, 44 p., 040.

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

    24. Published

      Search for Higgs boson pair production in the b(b)over-barb(b)over-bar final state from pp collisions at root s=8 TeVwith 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., 9 Sep 2015, In: The European Physical Journal C: Particles and Fields. 75, 9, 412.

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

    25. Published

      Search for Higgs boson pair production in the b(b)over-barWW* decay mode 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., Acharya, B. S., Adachi, J., Adam, L., Adamczyk, L., Adelman, J., Adersberger, M., Adiguzel, A., Adye, T., Affolder, A. A. & 21 others, Afik, Y., Agheorghiesei, C., Aguilar-Saavedra, J. A., Ahmadov, F., Aielli, G., Alonso Diaz, A., de Almeida Dias, F., Bajic, M., hqz214, H., Dam, Mogens, Besjes, G., Hansen, Jørgen Beck, Galster, G. A. G. K., Hansen, Peter Henrik, Hansen, Jørn Dines, Monk, J. W., Petersen, Troels Christian, Stark, S. H., Wiglesworth, Graig, Xella, Stefania & The ATLAS collaboration, T. A. C., 12 Apr 2019, In: Journal of High Energy Physics. 2019, 4, 47 p., 092.

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

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