Probing lepton flavour violation via neutrinoless τ → 3μ decays with the ATLAS detector

G. Aad, B. Abbott, J. Abdallah, O. Abdinov, R. Aben, M. Abolins, O. S. Abouzeid, H. Abramowicz, H. Abreu, R. Abreu, Y. Abulaiti, B. S. Acharya, L. Adamczyk, D. L. Adams, J. Adelman, S. Adomeit, T. Adye, A. A. Affolder, T. Agatonovic-Jovin, J. Agricola & 31 others J. A. Aguilar-Saavedra, S. P. Ahlen, F. Ahmadov, G. Aielli, H. Akerstedt, T. P A Åkesson, A. V. Akimov, G. L. Alberghi, J. Albert, S. Albrand, M. J. Alconada Verzini, M. Aleksa, I. N. Aleksandrov, C. Alexa, G. Alexander, T. Alexopoulos, M. Alhroob, G. Alimonti, L. Alio, J. Alison, S. P. Alkire, B. M M Allbrooke, P. P. Allport, A. Aloisio, A. Alonso, F. Alonso, K. Cranmer, A. Haas, A. I. Mincer, P. Nemethy, The ATLAS Collaboration

    Research output: Contribution to journalArticle

    Abstract

    This article presents the sensitivity of theATLAS experiment to the lepton-flavour-violating decays of τ → 3μ. A method utilising the production of τ leptons via W → τν decays is used. This method is applied to the sample of 20.3 fb−1 of pp collision data at a centre-of-mass energy of 8 TeV collected by the ATLAS experiment at the LHC in 2012. No event is observed passing the selection criteria,and the observed (expected) upper limit on the τ lepton branching fraction into three muons,Br(τ → 3μ),is 3.76 × 10−7 (3.94 × 10−7) at 90 % confidence level.

    Original languageEnglish (US)
    Article number232
    JournalEuropean Physical Journal C
    Volume76
    Issue number5
    DOIs
    StatePublished - 2016

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    Flavors
    leptons
    Detectors
    detectors
    decay
    Experiments
    center of mass
    muons
    confidence
    collisions
    sensitivity
    energy

    ASJC Scopus subject areas

    • Engineering (miscellaneous)
    • Physics and Astronomy (miscellaneous)

    Cite this

    Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Aben, R., Abolins, M., ... The ATLAS Collaboration (2016). Probing lepton flavour violation via neutrinoless τ → 3μ decays with the ATLAS detector. European Physical Journal C, 76(5), [232]. https://doi.org/10.1140/epjc/s10052-016-4041-9

    Probing lepton flavour violation via neutrinoless τ → 3μ decays 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.; Abulaiti, Y.; Acharya, B. S.; Adamczyk, L.; Adams, D. L.; Adelman, J.; Adomeit, S.; Adye, T.; Affolder, A. A.; Agatonovic-Jovin, T.; Agricola, J.; Aguilar-Saavedra, J. A.; Ahlen, S. P.; Ahmadov, F.; Aielli, G.; Akerstedt, H.; Åkesson, T. P A; Akimov, A. V.; Alberghi, G. L.; Albert, J.; Albrand, S.; Alconada Verzini, M. J.; Aleksa, M.; Aleksandrov, I. N.; Alexa, C.; Alexander, G.; Alexopoulos, T.; Alhroob, M.; Alimonti, G.; Alio, L.; Alison, J.; Alkire, S. P.; Allbrooke, B. M M; Allport, P. P.; Aloisio, A.; Alonso, A.; Alonso, F.; Cranmer, K.; Haas, A.; Mincer, A. I.; Nemethy, P.; The ATLAS Collaboration.

    In: European Physical Journal C, Vol. 76, No. 5, 232, 2016.

    Research output: Contribution to journalArticle

    Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Aben, R, Abolins, M, Abouzeid, OS, Abramowicz, H, Abreu, H, Abreu, R, Abulaiti, Y, Acharya, BS, Adamczyk, L, Adams, DL, Adelman, J, Adomeit, S, Adye, T, Affolder, AA, Agatonovic-Jovin, T, Agricola, J, Aguilar-Saavedra, JA, Ahlen, SP, Ahmadov, F, Aielli, G, Akerstedt, H, Åkesson, TPA, Akimov, AV, Alberghi, GL, Albert, J, Albrand, S, Alconada Verzini, MJ, Aleksa, M, Aleksandrov, IN, Alexa, C, Alexander, G, Alexopoulos, T, Alhroob, M, Alimonti, G, Alio, L, Alison, J, Alkire, SP, Allbrooke, BMM, Allport, PP, Aloisio, A, Alonso, A, Alonso, F, Cranmer, K, Haas, A, Mincer, AI, Nemethy, P & The ATLAS Collaboration 2016, 'Probing lepton flavour violation via neutrinoless τ → 3μ decays with the ATLAS detector', European Physical Journal C, vol. 76, no. 5, 232. https://doi.org/10.1140/epjc/s10052-016-4041-9
    Aad, G. ; Abbott, B. ; Abdallah, J. ; Abdinov, O. ; Aben, R. ; Abolins, M. ; Abouzeid, O. S. ; Abramowicz, H. ; Abreu, H. ; Abreu, R. ; Abulaiti, Y. ; Acharya, B. S. ; Adamczyk, L. ; Adams, D. L. ; Adelman, J. ; Adomeit, S. ; Adye, T. ; Affolder, A. A. ; Agatonovic-Jovin, T. ; Agricola, J. ; Aguilar-Saavedra, J. A. ; Ahlen, S. P. ; Ahmadov, F. ; Aielli, G. ; Akerstedt, H. ; Åkesson, T. P A ; Akimov, A. V. ; Alberghi, G. L. ; Albert, J. ; Albrand, S. ; Alconada Verzini, M. J. ; Aleksa, M. ; Aleksandrov, I. N. ; Alexa, C. ; Alexander, G. ; Alexopoulos, T. ; Alhroob, M. ; Alimonti, G. ; Alio, L. ; Alison, J. ; Alkire, S. P. ; Allbrooke, B. M M ; Allport, P. P. ; Aloisio, A. ; Alonso, A. ; Alonso, F. ; Cranmer, K. ; Haas, A. ; Mincer, A. I. ; Nemethy, P. ; The ATLAS Collaboration. / Probing lepton flavour violation via neutrinoless τ → 3μ decays with the ATLAS detector. In: European Physical Journal C. 2016 ; Vol. 76, No. 5.
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    abstract = "This article presents the sensitivity of theATLAS experiment to the lepton-flavour-violating decays of τ → 3μ. A method utilising the production of τ leptons via W → τν decays is used. This method is applied to the sample of 20.3 fb−1 of pp collision data at a centre-of-mass energy of 8 TeV collected by the ATLAS experiment at the LHC in 2012. No event is observed passing the selection criteria,and the observed (expected) upper limit on the τ lepton branching fraction into three muons,Br(τ → 3μ),is 3.76 × 10−7 (3.94 × 10−7) at 90 {\%} confidence level.",
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    AU - Abbott, B.

    AU - Abdallah, J.

    AU - Abdinov, O.

    AU - Aben, R.

    AU - Abolins, M.

    AU - Abouzeid, O. S.

    AU - Abramowicz, H.

    AU - Abreu, H.

    AU - Abreu, R.

    AU - Abulaiti, Y.

    AU - Acharya, B. S.

    AU - Adamczyk, L.

    AU - Adams, D. L.

    AU - Adelman, J.

    AU - Adomeit, S.

    AU - Adye, T.

    AU - Affolder, A. A.

    AU - Agatonovic-Jovin, T.

    AU - Agricola, J.

    AU - Aguilar-Saavedra, J. A.

    AU - Ahlen, S. P.

    AU - Ahmadov, F.

    AU - Aielli, G.

    AU - Akerstedt, H.

    AU - Åkesson, T. P A

    AU - Akimov, A. V.

    AU - Alberghi, G. L.

    AU - Albert, J.

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    AU - Aleksa, M.

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