Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at s =8 TeV Measured with the ATLAS Detector

ATLAS Collaboration, T. Iizawa

    Research output: Contribution to journalArticle

    23 Citations (Scopus)

    Abstract

    A search for new phenomena in LHC proton-proton collisions at a center-of-mass energy of s=8 TeV was performed with the ATLAS detector using an integrated luminosity of 17.3 fb-1. The angular distributions are studied in events with at least two jets; the highest dijet mass observed is 5.5 TeV. All angular distributions are consistent with the predictions of the standard model. In a benchmark model of quark contact interactions, a compositeness scale below 8.1 TeV in a destructive interference scenario and 12.0 TeV in a constructive interference scenario is excluded at 95% C.L.; median expected limits are 8.9 TeV for the destructive interference scenario and 14.1 TeV for the constructive interference scenario.

    Original languageEnglish
    Article number221802
    JournalPhysical Review Letters
    Volume114
    Issue number22
    DOIs
    Publication statusPublished - 2015 Jun 4

    Fingerprint

    Protons
    angular distribution
    interference
    Benchmarking
    collisions
    protons
    detectors
    center of mass
    electric contacts
    luminosity
    quarks
    predictions
    interactions
    energy

    ASJC Scopus subject areas

    • Medicine(all)
    • Physics and Astronomy(all)

    Cite this

    Search for New Phenomena in Dijet Angular Distributions in Proton-Proton Collisions at s =8 TeV Measured with the ATLAS Detector. / ATLAS Collaboration; Iizawa, T.

    In: Physical Review Letters, Vol. 114, No. 22, 221802, 04.06.2015.

    Research output: Contribution to journalArticle

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    abstract = "A search for new phenomena in LHC proton-proton collisions at a center-of-mass energy of s=8 TeV was performed with the ATLAS detector using an integrated luminosity of 17.3 fb-1. The angular distributions are studied in events with at least two jets; the highest dijet mass observed is 5.5 TeV. All angular distributions are consistent with the predictions of the standard model. In a benchmark model of quark contact interactions, a compositeness scale below 8.1 TeV in a destructive interference scenario and 12.0 TeV in a constructive interference scenario is excluded at 95{\%} C.L.; median expected limits are 8.9 TeV for the destructive interference scenario and 14.1 TeV for the constructive interference scenario.",
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    AU - Abdallah, J.

    AU - Abdinov, O.

    AU - Aben, R.

    AU - Abolins, M.

    AU - Abouzeid, O. S.

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    AU - Abreu, R.

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    AU - Alberghi, G. L.

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    AU - Alexander, G.

    AU - Alexopoulos, T.

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    AU - Allport, P. P.

    AU - Aloisio, A.

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    AU - Iizawa, T.

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