The ATLAS Tau Trigger Performance during LHC Run 1 and Prospects for Run 2

ATLAS Collaboration

    Research output: Contribution to journalArticle

    Abstract

    The ATLAS tau trigger is designed to select the hadronic decays of tau leptons. Tau leptons play an important role in Standard Model (SM) physics, such as in Higgs boson decays. Tau leptons are also important in searches for beyond the SM (BSM) scenarios, such as supersymmetry, where they are often produced preferentially. During the 2010-2012 LHC run (Run 1), tau triggers were implemented and used successfully in ATLAS, contributing to several important results such as the evidence for H→ττ. For the 2015 LHC run (Run 2), the LHC will be upgraded. Due to the energy increase, the cross sections for SM processes are expected to get much larger. Additionally, the number of overlapping interactions per bunch crossing (pile-up) is expected to increase significantly. It will therefore be challenging to control trigger rates while keeping interesting physics events. This document summarizes the tau trigger performance in Run 1 and its prospects for Run 2.

    Original languageEnglish
    Pages (from-to)2482-2484
    Number of pages3
    JournalNuclear and Particle Physics Proceedings
    Volume273-275
    DOIs
    Publication statusPublished - 2016 Jan 1

    Fingerprint

    actuators
    leptons
    physics
    decay
    piles
    Higgs bosons
    supersymmetry
    cross sections
    interactions
    energy

    Keywords

    • ATLAS
    • LHC Run 2
    • Performance
    • Tau trigger

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    The ATLAS Tau Trigger Performance during LHC Run 1 and Prospects for Run 2. / ATLAS Collaboration.

    In: Nuclear and Particle Physics Proceedings, Vol. 273-275, 01.01.2016, p. 2482-2484.

    Research output: Contribution to journalArticle

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    abstract = "The ATLAS tau trigger is designed to select the hadronic decays of tau leptons. Tau leptons play an important role in Standard Model (SM) physics, such as in Higgs boson decays. Tau leptons are also important in searches for beyond the SM (BSM) scenarios, such as supersymmetry, where they are often produced preferentially. During the 2010-2012 LHC run (Run 1), tau triggers were implemented and used successfully in ATLAS, contributing to several important results such as the evidence for H→ττ. For the 2015 LHC run (Run 2), the LHC will be upgraded. Due to the energy increase, the cross sections for SM processes are expected to get much larger. Additionally, the number of overlapping interactions per bunch crossing (pile-up) is expected to increase significantly. It will therefore be challenging to control trigger rates while keeping interesting physics events. This document summarizes the tau trigger performance in Run 1 and its prospects for Run 2.",
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